NC-2009 EAc6: Green Power

  • NC Schools EAc6 Type1 Purchased Green Power Diagram
  • Easy to research

    Pick up the phone, call the local utility and a couple of green power providers—companies that sell renewable energy credits (RECs), which provide funding to renewable energy generation, supporting its development. Give them your project’s estimated energy consumption. Sit back and receive estimates.

    That’s all it takes to find out what a purchase of offsite renewable energy will cost, so be sure to consider it—you might be pleasantly surprised. The credit requires you to offset only a percentage of your electricity consumption with RECs to earn points (see diagram at right). You can make a stronger environmental statement and earn an extra Exemplary PerformanceIn LEED, certain credits have established thresholds beyond basic credit achievement. Meeting these thresholds can earn additional points through Innovation in Design (ID) or Innovation in Operations (IO) points. As a general rule of thumb, ID credits for exemplary performance are awarded for doubling the credit requirements and/or achieving the next incremental percentage threshold. However, this rule varies on a case by case basis, so check the credit requirements. point through IDc1 by offsetting 70% (100% for CI projects).

    Why green power?

    Some building owners may hesitate to pursue this credit because they don’t believe that the extra cost brings a direct, tangible benefit to their building.

    Green-e logoRECs must be Green-e certified or the equivalent. Center for Resource Solutions

    However, nonrenewable electricity production is a huge contributor to pollution and global climate change1. Climate change refers to any significant change in measures of climate (such as temperature, precipitation, or wind) lasting for an extended period (decades or longer). (U.S. Environmental Protection Agency, 2008) 2.The increase in global average temperatures being caused by a buildup of CO2 and other greenhouse gases in the atmosphere. This temperature change is leading to changes in circulation patterns in the air and in the oceans, which are affecting climates differently in different places. Among the predicted effects are a significant cooling in Western Europe due to changes in the jet stream, and rising sea levels due to the melting of polar ice and glaciers., and buying green power creates incentives for further development of renewable energy facilities. The benefits of renewable energy are well-understood by the general public, and so buying green power can help you advertise your commitment to environmental responsibility. Many projects display their renewable energy certificates prominently.

    Making it cost-effective

    Many projects see this credit as low-hanging fruit, and may pursue it depending on how many points they need to achieve their LEED goals. Because the credit focuses exclusively on electricity (not natural gas, propane, or fuel oil) it is usually very affordable.

    Purchasing green power through your utility

    Many utilities offer a green power option for their customers, typically from renewable sources within your region. Instead of buying RECs from a third party, you can quickly get set up to buy the RECs based on a premium charge per kilowatt-hour that you consume. 

    What are RECs?

    The market for renewable energy credits (RECs) has exploded in recent years, but RECs are still an abstract entity that can be difficult to define.

    For buildings that can’t generate onsite renewable power or purchase it through a regional utility, but still want to promote renewable energy, RECs (sometimes called “green tags” or “tradable renewable certificates”) allow customers to continue to buy the same grid-supplied power, while also buying the environmental attributes of electricity produced by a renewable source. (The actual renewably generated electricity is sold separately to the grid for market price as normal power, while your REC purchase helps deliver extra revenue that helps make renewable energy production financially feasible.) To ensure quality, LEED requires you to purchase RECs certified by Green-e, a third-party program, or an equivalent certification program.

    You can buy RECs from specific regions of the country, and even from specific renewable energy projects, or project types (like wind or solar). Buying RECs from a specific source can increase the cost a bit, but also helps bring this intangible commodity down to earth.

    Wind farmThe Bear Creek Wind Farm in Bear Creek, Pennsylvania, with 12 Garnesa 2.0 MW turbines, was developed in 2005 by Community Energy, which sells renewable energy credits (RECs) from the project. Photo – Community Energy, Inc.

    Criticisms of RECs

    RECs, along with carbon offsets, which are similar, have come under criticism. This is largely due to the perception that they allow a person or a business to go on with business as usual, consuming as much fossil fuel as usual, and then simply write a check to assuage their guilt, without producing tangible environmental benefit.

    There is validity to these concerns, which are best countered by conserving energy through high-performance building design and location (earning other EA and SS points in LEED), generating renewable energy onsite if possible, and then buying RECs only as a last step. Focusing on energy conservation first has the side benefit of making the ultimate purchase of RECs more affordable, because you have less consumption to offset.

    FAQs for LEED and green power

    Can I buy RECs on the open market, or do I have to go through my power provider or utility, which also offers them?

    You can buy RECs from either source.

    Our project is outside the U.S. We would like to earn this credit by purchasing RECs, but there are no Green-e options available here. It looks like most Green-e certified power comes from the U.S. What should we do?

    Your simplest course of action is to buy any Green-e RECs available on the open market, including those in the U.S. There is no requirement for your RECs to be from your country. If you prefer to buy RECs from a project closer to home, you can see if there are RECs available that are certified to a standard that is equivalent to Green-e. This is less common, but has been done.

    We are pursuing this credit outside the U.S., and the owner wants to know if we can buy green power through a provider in our country that is not Green-e certified. We started comparing our national standard to Green-e and quickly found an area where the national standard is not as stringent as Green-e. Is this a dead end?

    Correct—you can't rely on your national standard in this case. The Green-e Standard exists to make sure that there is no double counting in the market and clearly addresses the voluntary market only. These fundamental issue of accounting and additionality are at the core of LEED's adoption of such a standard to define quality green power products.

    Our project will be net-zero energy, i.e. will produce as much or more power than it consumes. Can we earn this credit?

    Yes, as confirmed by LEED InterpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. #10219 posted on 7/1/2012, if the project produces 100% or more of its electricity as onsite renewable electricity, the project can earn the credit plus an EP point. However, you also need to take steps to ensure that if the as-built project does not turn out to be net-zero, that the appropriate quantity of RECs will be purchased to meet the credit threshold. See the LEED Interpretation for these details.

    We will have cogeneration onsite. Do the credit requirements apply to all electricity used onsite, or only that which is purchased from the grid?

    All electricity used by the project is the basis for the green power purchase.

    The owner has purchased RECs for a percentage of energy use of its whole portfolio of buildings, or campus. Can we earn this credit for a single LEED building with this purchase?

    Yes. Provide evidence of the quantity and term purchase for the campus along with an explanation of how the green power has been or will be allocated as applicable. If any of this purchase has been allocated to a previous LEED project state how much and provide a letter allocating the quantity needed to this project.

    We plan on pursuing this credit only if we need to do so to meet our certification target, i.e. if another credit we are counting on gets rejected. How late can we apply for this credit?

    You can document this credit as late as when you submit your clarifications for the construction review. You can even do it after that, and before you accept your final certification, but you'll have to pay an appeal fee.

    The owner purchases RECs based on an earlier prediction, but our energy model is now showing that we are just a little short of the credit threshold. What should we do?

    The owner will need to buy additional RECs to meet the threshold.

Legend

  • Best Practices
  • Gotcha
  • Action Steps
  • Cost Tip

Pre-Design

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  • Discuss with your team the possibility of purchasing green power.


  • You have three options for earning this credit. The best and most cost-effective option for your project will depend on your location and the offerings of the local utility. 

    • Purchase green power through the existing power provider. You need to verify that it is a Green-e certified provider or the equivalent. 
    • If your state has an open electricity market, you can find—and directly purchase from—a provider that offers Green-e accredited power. 
    • Purchase Green-e certified renewable energy certificates (RECs).

  • Most projects find it easiest to go with the third option, and shop around for the best deal on RECs. Others, however, have found it best to purchase through their local utility when they can get a better bundle deal and feel like the purchase is more tangible, so do some research. Utility green pricing map


  • This is one LEED credit that you can do at the last minute. However, if you are renting or selling space in your building, you may want to use the purchase of green power as a marketing tool and will not want to wait until the last minute to make the purchase.


  • Many projects see this credit as one for which you pay but don’t receive a tangible benefit. However, nonrenewable electricity production is a huge contributor to pollution and global climate change, and buying green power supports the development of renewable energy facilities. 


  • The amount of green power that you need to purchase for the credit is based on the quantity of electricity consumed, not the cost of the electricity. If your project is pursuing EAc1: Optimize Energy Performance through energy modeling, your focus is on reduction in cost, not quantity, so note the difference when doing calculations for this credit. For guidance on the calculations, see the LEEDuser strategy on step-by-step green power calculations.

     


  • If the owner is a corporation or a school district with a portfolio of multiple buildings, consider purchasing green power through a bulk agreement and allocating it to different projects. You will need to avoid “double-dipping,” where more than one project or tenant space uses the same green power allotment. 


  • If your green power provider does not supply Green-e accredited energy, it must have an equivalent accreditation. To qualify as an equivalent accreditation, a program must meet the requirements for renewable resources as detailed by Green-e, and the supplier must have undergone an annual third-party verification process equivalent to the Green-e process. You might want to take this route if your utility provider can provide the best rate.


  • You can choose to purchase two years’ worth of green power at occupancy, rather than pay monthly or yearly. In this case, you would purchase double the percentage of assumed annual electricity consumption to satisfy the credit’s two-year commitment. For example, a LEED-NC or Schools project would purchase 70% (or more) of the assumed annual electricity consumption. 


  • Projects pursuing this credit with a district energy system should refer to the USGBC’s District Thermal Energy Treatment document for specific considerations.


  • Some universities and large companies have already decided to purchase green power and therefore your project may not have to pay for it directly. Consult with the owner to see if this is already happening and you can use previously allocated funds rather than project funds. You will need to make sure there is no “double-dipping”.


  • The lower your building’s energy use, the less you pay for this credit (because you have less electrical power use to offset). Explore cost-effective ways of reducing electrical energy consumption in order to reduce the cost of green power. 

Schematic Design

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  • CBECS defaultsCalculate a rough estimate of the cost for purchasing green power based on the default numbers found in the LEED Reference Guide or through DOE’s Commercial Buildings Energy Consumption Survey database (see the table at right). See the LEEDuser strategy on step-by-step green power calculations and follow the steps for default electricity consumption calculations.


  • Green power prices can fluctuate like other utility prices. If you think prices may rise by the time the project is completed, lock in a low price by signing a contract anytime prior to occupancy. 


  • Running estimated calculations early in the design stage will help to give you a better understanding of how much the credit might cost. Just keep in mind that the cost may change once the energy usage is further defined as part of your calculations for EAp2 and EAc1: Optimize Energy Performance. If you are using an energy model per Option 1 of EAc1, the cost of RECs might change if alterations to the energy model are required after the LEED design review, but the change should be minimal.  


  • Especially if your project is very energy efficient, you will probably be able to pay less for green power based on your energy model than you would using the default values from CBECS. 

Design Development

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  • Continue to seek strategies that lower the building’s electrical energy use in order to subsequently reduce the cost of green power. 


  • Call several green power providers to get a preliminary estimate of the cost to buy green power for 35% of the assumed, actual or default electricity consumption. While you’re at it, also get an estimate for buying 70% green power and earning a point for exemplary performance or really go for it with 100%. Find green power providers on EPA’s Green Power Partnership website or the Green-e website. See the Resources section for links to their websites.


  • Green power is a competitive market with price variation. Obtain more than one estimate to find less-expensive options. 


  • Some projects choose to attempt this credit at the last minute and keep it as a “back-pocket” credit. For example, you may decide to go for this credit only if it helps you reach another level of LEED certification. A contract can be arranged at the last minute, and can even be submitted after the first construction review.


  • This credit requires only a few minutes to make phone calls, provide the size of the project and energy consumption, and get estimates. It is well worth the time and effort to determine the likely cost.  

Construction Documents

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  • Determine electricity use based on one of the following options: 

Construction

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  • If you are using energy modeling, get a final estimate of the cost based on final model outputs. Remember that this credit is based on the quantity of electricity consumption (usually in kWh), not cost.


  • Sign a contract with the chosen green power provider. 


  • Submit documentation to LEED Online. This will include filling out the LEED Online credit form, which requires a number of inputs on total electrical consumption (or default values) and details on the green power purchased. You will also need to upload a proof of purchase for two years of green power—see the Documentation Toolkit for an example.

Operations & Maintenance

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  • If you do not purchase two years of green power at occupancy, you will need to continue to pay monthly or yearly for two years. 


  • After two years, consider continuing to pay for green power. Doing so can help projects that are pursuing LEED-EBOM certification via EAc4.

  • USGBC

    Excerpted from LEED 2009 for New Construction and Major Renovations

    EA Credit 6: Green power

    2 Points

    Intent

    To encourage the development and use of grid-source, renewable energy technologies on a net zero pollution basis.

    Requirements

    Engage in at least a 2-year renewable energy contract to provide at least 35% of the building’s electricity from renewable sources, as defined by the Center for Resource Solutions’ Green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. Energy product certification requirements or an equivalent [Europe ACP: Green Power] [South America ACP: Green Power] [India ACP: Green Power]

    All purchases of green power shall be based on the quantity of energy consumed, not the cost.

    If the green power is not Green-e Energy certified, equivalence must exist for both major Green-e Energy program criteria: 1) current green power performance standards, and 2) independent, third-party verification that those standards are being met by the green power supplier over time.

    Option 1. Determine baseline electricity use

    Use the annual electricity consumption from the results of EA Credit 1: Optimize Energy Performance.

    OR

    Option 2. Estimate baseline electricity use

    Use the U.S. Department of Energy’s Commercial Buildings Energy Consumption Survey database to determine the estimated electricity use.

    Alternative Compliance Paths (ACPs)

    Europe ACP: Green-e Energy Equivalent

    Projects in Europe may use the following approved standards in place of Green-e Energy:

    • EKOenergy
    • Guarantees of Origin (GOs) with additional parameters

    India ACP: Green-e Energy Equivalent

    Projects in India may use the Indian Central Electricity Regulatory Commission RECA Renewable Energy Certificate (REC) is a certificate representing proof that a given unit of electricity was generated from a renewable energy source such as solar or wind. These certificates are able to be sold, traded, or bartered as environmental commodities, where an electricity consumer can buy the renewable energy attributes of electricty to support renewable energy, even if they are consuming generic grid-supplied electricity that may be supplied by nonrenewable sources. program with additional parameters in place of Green-e Energy.

    South America ACP: Green-e Energy Equivalent

    Projects in South America may use the Brazilian “Certificado de Energia Renovável” (Renewable Energy Certificate) with additional parameters in place of Green-e Energy.

    Credit substitution available

    You may use the LEED v4 version of this credit on v2009 projects. For more information check out this article.

    Potential Technologies & Strategies

    Determine the energy needs of the building and investigate opportunities to engage in a green power contract. Green power is derived from solar, wind, geothermal, biomass or low-impact hydro sources. Visit http://www.green-e.org/energy for details about the Green-e Energy program. The green power product purchased to comply with credit requirements need not be Green-e Energy certified. Other sources of green power are eligible if they satisfy the Green-e Energy program’s technical requirements. Renewable energy certificates (RECs), tradable renewable certificates (TRCs), green tags and other forms of green power that comply with the technical requirements of the Green-e Energy program may be used to document compliance with this credit.

Web Tools

Commercial Buildings Energy Consumption Survey

Use this website to determine the default energy consumption rates by building type.


U.S. Department of Energy – Green Power Network

This website provides information on pricing, marketing, and purchasing green power, as well as news and information. 

Organizations

EPAs Green Power Partnership

EPA’s Green Power Partnership provides assistance and recognition to organizations that demonstrate environmental leadership by choosing green power. It includes a buyer’s guide with lists of green power providers in each state.


Green-e

Search for green power or carbon offsetA fiscal unit measured in metric tons of carbon dioxide-equivalent (CO2e) representing six main categories of greenhouse gases. Aimed at reducing greenhouse gas emissions, one carbon offset represents the reduction of one metric ton of carbon dioxide (or its equivalent in other greenhouse gases). Carbon offsets are typically purchased by consumers of fossil fuels or products using fossil fuels, as a way to "offset" or negate their negative environmental impact. providers by location. Understand Green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. standards to demonstrate equivalency. 


Low Impact Hydropower Institute

The Low Impact Hydropower Institute is a non-profit organization and certification body that establishes criteria against which to judge the environmental impacts of hydropower projects in the United States.

Technical Guides

Treatment of District or Campus Thermal Energy in LEED V2 and LEED 2009 – Design & Construction

This document is USGBC’s second (v2.0) major release of guidance for district or campus thermal energy in LEED, and is a unified set of guidance comprising the following an update to the original Version 1.0 guidance released May 2008 for LEED v2.x and the initial release of formal guidance for LEED v2009.

Renewable Energy Certificate (REC) Pricing

RECA Renewable Energy Certificate (REC) is a certificate representing proof that a given unit of electricity was generated from a renewable energy source such as solar or wind. These certificates are able to be sold, traded, or bartered as environmental commodities, where an electricity consumer can buy the renewable energy attributes of electricty to support renewable energy, even if they are consuming generic grid-supplied electricity that may be supplied by nonrenewable sources. vendors often offer different REC products and pricing based on the type of renewable energy generation (such as solar or wind) and the geographical location of the generation, as shown in this sample pricing table prepared for a LEED-NC project.

Green Power Contract

You will need to execute a contract like this sample to purchase renewable energy credits (RECs), and then upload it to LEED Online to verify credit compliance.

LEED Online Forms: NC-2009 EA

Sample LEED Online forms for all rating systems and versions are available on the USGBC website.

Construction Submittal

HardhatDocumentation for this credit is part of the Construction Phase submittal.

199 Comments

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sherif el adly Egis Rail
Dec 01 2016
LEEDuser Member
25 Thumbs Up

green power source

Project Location: Saudi Arabia

The client have a solar park in a land adjacent to the land on which the project will be built. The client has the ability to increase the LEED boundary and add the two lands such that this solar park can be counted as on site renewable energy however he rejects. He wants to utilize the power as a green external power.

Is that possible since the two lands are adjacent and with the same owner? and can the power from the solar park be counted in the energy modeling?

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Marcus Sheffer LEED Fellow, 7group Dec 01 2016 LEEDuser Expert 65845 Thumbs Up

Yes it is possible and can be counted toward EAp2, EAc1, and EAc2. On-site solar does not count directly toward EAc6 however. The renewable energy generated simply reduces the quantity of green power you need to provide as the renewable energy is subtracted from the total energy consumption of the building. If the renewable system provides more than 100% of the building's energy consumption you earn EAc6 automatically with some qualifiers - see LEED InterpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. #10219.

This sounds like the campus guidance applies so see this document for more guidance -http://www.usgbc.org/resources/leed-campus-guidance

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Jens Apel
Oct 06 2016
LEEDuser Member
1388 Thumbs Up

Additional requirements - Guarantees of Origin (GOs)

Project Location: Switzerland

The European ACP for EAc6 states:
"Guarantees of Origin (GOs) are an acceptable equivalent to the Green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. program for electricity if additional requirements are met with regards to location of power generation, hydropower and biomass in Europe."
Does anyone know what these "additional requirements" are? It seems I can't find any reference to that nor any specific requirements.

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Marcus Sheffer LEED Fellow, 7group Oct 06 2016 LEEDuser Expert 65845 Thumbs Up

You have to read those portions of the Green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. Standard and demonstrate that the green power you are purchasing is equivalent.

http://www.green-e.org/getcert_re_stan.shtml

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Jens Apel Oct 10 2016 LEEDuser Member 1388 Thumbs Up

Thanks Marcus. Sounds to me like we are to show the equivalency of local green power and Green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products., which was introduced by addenda in mid 2012 independent of GOs.
I thought there would be a more streamlined compliance path based on the full official ACP rating system from 2014, with either EKOenergy or GOs; and having less to demonstrate when we use GOs.

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Erin Holdenried Sustainable Design Manager AECOM
Jun 17 2016
LEEDuser Member
316 Thumbs Up

dedicated wind farm

Project Location: United States

I have a project with a dedicated wind farm. The wind farm is offsite, built by a 3rd party with a contract to supply 100% of the project's electricity usage for 10 years. Would this be considered equivalent to RECs?

Thanks,

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Marcus Sheffer LEED Fellow, 7group Jun 21 2016 LEEDuser Expert 65845 Thumbs Up

RECs are a related issue but I think you want to know if this will qualify toward earning EAc6. Hard to say for sure but probably not.

Offsite renewable energy systems can qualify under EAc2 and count toward EAc1. Check out LEED Interpretations 10161 and 2616. You will need to provide more information on the nature of the off site location and the contract. If the RECs have been sold then they must be replaced. So you may be able to count it under EAc2/EAc1 but probably not under EAc6.

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Melissa Merryweather Director Green Consult-Asia
Apr 19 2016
LEEDuser Member
3380 Thumbs Up

credit for renewables on site?

Project Location: Vietnam

Some of the credit language mentions renewables generated on site. We are generating 29.9% of our energy annually from renewables. Can we get this counted towards the 35% or is it the case that unless we reach 35% we must buy the entire 35% from a certified provider? Thanks to confirm!

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Marcus Sheffer LEED Fellow, 7group Apr 25 2016 LEEDuser Expert 65845 Thumbs Up

It does contribute but does not count directly. Your on-site renewables are subtracted from your consumption. You then need to purchase 35% of the remaining electrical consumption as green power.

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Melissa Merryweather Director, Green Consult-Asia Apr 25 2016 LEEDuser Member 3380 Thumbs Up

Thanks, Marcus

That makes perfect sense. I'll re-read the text to see if its obvious in hindsight, but I felt that it wasn't particularly clear.

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Elizabeth Eason LEED Fellow Elizabeth Eason Architecture LLC
Mar 22 2016
LEEDuser Member
239 Thumbs Up

exemplary performance in v6 form

Is the exemplary performanceIn LEED, certain credits have established thresholds beyond basic credit achievement. Meeting these thresholds can earn additional points through Innovation in Design (ID) or Innovation in Operations (IO) points. As a general rule of thumb, ID credits for exemplary performance are awarded for doubling the credit requirements and/or achieving the next incremental percentage threshold. However, this rule varies on a case by case basis, so check the credit requirements. point still available? The new form v6 does not have the option for selecting exemplary performance. The ID credits do not have EAc6 as an option in the pull down menu. Am I missing a button somewhere?

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Marcus Sheffer LEED Fellow, 7group Apr 25 2016 LEEDuser Expert 65845 Thumbs Up

Not sure about the new form but exemplary performanceIn LEED, certain credits have established thresholds beyond basic credit achievement. Meeting these thresholds can earn additional points through Innovation in Design (ID) or Innovation in Operations (IO) points. As a general rule of thumb, ID credits for exemplary performance are awarded for doubling the credit requirements and/or achieving the next incremental percentage threshold. However, this rule varies on a case by case basis, so check the credit requirements. is still available for this credit.

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Elizabeth Eason LEED Fellow, Elizabeth Eason Architecture LLC Apr 25 2016 LEEDuser Member 239 Thumbs Up

thank you Marcus. I have since learned that there is a problem with the newest form. GBCIThe Green Building Certification Institute (GBCI) manages Leadership in Energy and Environmental Design (LEED) building certification and professional accreditation processes. It was established in 2008 with support from the U.S. Green Building Council (USGBC). said "this is a known problem with the v6 form we are working to have corrected. If you could, please mark in
the special circumstances field on the EAc6 v6 form that you wish to achieve ID credit and what your percentage threshold will be. If you could also then note in the Innovation and Design credit (ID) credit reference to the Special Circumstances field on the EAc6 form your review team should be able to follow and review appropriately."

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Ed Healy ESD Consultant, LEED AP BD+C Hurley Palmer Flatt
Mar 21 2016
LEEDuser Member
171 Thumbs Up

Determination of 2 year energy consumption

Project Location: Sweden

Hi there,

My project wishes to calculate the GWh of green power required for compliance via the company's standard calculation procedure. It is based on their IT procurement and roll out procedure. The facility will not be fully operational for years to come, and thus the calculation from the EAp2 & c1 model will grossly overestimate the 35% total amount.

Can this calculation, together with the basis of the calculation, be acceptable?

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Marcus Sheffer LEED Fellow, 7group Mar 21 2016 LEEDuser Expert 65845 Thumbs Up

It is impossible to say for sure. This purchase is typically based on the energy modeling results. Even if it overestimates the initial energy use it is the conservative approach. Anything else would require some significant level of justification.

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Ed Healy ESD Consultant, LEED AP BD+C, Hurley Palmer Flatt Mar 21 2016 LEEDuser Member 171 Thumbs Up

Thank you very much for your response Marcus. The issue is that the facility will be initially fitted out to 10% of its eventual energy consumption, so while the ASHRAE 90.1 energy model calculation is perhaps conservative, it is based on 100% of the facility's capacity. This will clearly determine an energy consumption rate way over the 35% minimum requirement.

When you say "significant level of justification" could this be the IT procurement and roll-out strategy provided by the client, which will provide further justification over the basic calculation sheet?

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Marcus Sheffer LEED Fellow, 7group Mar 21 2016 LEEDuser Expert 65845 Thumbs Up

As I said it is impossible to tell without seeing the calculation. Even then you will still be relying on trying to convince an individual reviewer with the inherit potential variability of an individual's opinion. I am not aware of any precedent for what you would be submitting. You would be asking to buy less than is required. The energy model is already a rough estimate. Roll out strategies change over time. There are numerous additional variables you would be introducing to the determination of what is acceptable.

My initial impression without seeing the calculations is - no you can't justify buying less because the facility will not be fully fitted out initially. The calculations require you to do the EAp2 calculations with a full fit out. The EAc6 calculations require you to buy 35% of that total. So I think it would be very difficult if not impossible to justify buying less because it goes counter to the requirements. That said you certainly can try. If you do i would be prepared to increase your green power purchase if your justification is not accepted.

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Jean Marais b.i.g. Bechtold DesignBuilder Expert Mar 21 2016 Guest 10786 Thumbs Up

Surely you could run the energy model for say four years or whatever and stage in the equipment and loads as required?

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Seonhee Kim Architect Design Collective
Aug 21 2015
Guest
326 Thumbs Up

green power for residential hi-rise?

Project Location: United States

Any proven strategy pursuing green power credit for residential hi-rise project? it is a rental property with separate utility meter to each unit.
Any advice would be greatly appreciated!

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Marcus Sheffer LEED Fellow, 7group Aug 25 2015 LEEDuser Expert 65845 Thumbs Up

The owner can still purchase RECs for the whole building. The metering does not really matter.

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Margaret Manuel Tetra Tech
Aug 10 2015
Guest
149 Thumbs Up

EAp2/EAc1, 1 pt denied, therefore, incorrect kWh - what to do?

Using Option 1. Whole Building Energy Simulation, the following note resides in this credit template: “The compliance path selected above and values entered for annual electricity use calculations below MUST correspond with the inputs given in EA Prerequisite 2.” (I emphasized MUST). We provided inputs, in EAp2/EAc1, but were denied 1 point. If Total electricity use from EAp2-15 is linked to EAc6 credit, but EAc6 is reporting total kWhA kilowatt-hour is a unit of work or energy, measured as 1 kilowatt (1,000 watts) of power expended for 1 hour. One kWh is equivalent to 3,412 Btu. incorrectly because we were denied 1 point in EAp2 - must we pay $500 to appeal EAp2, just to merely change the total electricity usages for this one number to report correctly on EAc6 according to what USGBC thinks the total kWh should be? We are not sure what USGBC did in their energy model to compute one less point. USGBC tells us what the total kWh amount should be in their opinion. We can increase our Green Power purchase to align with what USGBC believes our Total Electricity should be, which reads as 73.5% green power over a two year period (in lieu of “actual” 70%). Will this be acceptable, or does EAp2 need to be revised, to report correctly in EAc6, for both to match?

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Kristina Bach Sustainability Specialist, HGA Architects and Engineers Aug 11 2015 LEEDuser Member 2375 Thumbs Up

This is a fairly common issue and is definitely one that you do not need to pay any extra appeal fees for just to get the forms to align.

You will need to make sure that you are purchasing power to align with whatever USGBC has officially approved as the annual electricity use (i.e. the total annual kWhA kilowatt-hour is a unit of work or energy, measured as 1 kilowatt (1,000 watts) of power expended for 1 hour. One kWh is equivalent to 3,412 Btu. they state in their final review comment). As long as you show that you are calculating your credit requirements based on that official approved electricity use and your receipts/invoices back up the power amount you claim, reviewers can still award the credit as they can check to confirm that you've purchased the correct percentage/threshold based on that official energy amount (regardless of what auto-populates the EAc6 Credit Form).

Typically, we mark the Special Circumstances section of the EAc6 Credit Form and include a simple narrative along the lines of:
"The Design Final review of EAp2 indicates that the total annual electricity use of the project is 1,500 kWh/year. As such, a one-time REC purchase of 2,100 kWh has been made for this project. This amount is equal to 70.00% of the total annual electricity use over a 2-year-period as required by the credit and via the approved EAp2 electricity use. Please see the uploaded REC receipt to confirm EAc6 credit compliance."

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Margaret Manuel Tetra Tech Aug 11 2015 Guest 149 Thumbs Up

Thank you for your quick response Kristina!!!!

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Joyce Kelly Consultant Architectural Fusion
Jun 17 2015
LEEDuser Member
359 Thumbs Up

Utility sells "Community Solar" in yearly blocks - NOT Green-e

Project Location: United States

The local Utility sells "Community Solar" in yearly blocks - is NOT yet Green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. certified but willing to provide all the data required to be Green-e certified. For a City-owned building, I would like to upload the documentation that is required in Green-e application forms. I will also document how many blocks the City has purchased and committed to purchase for the next two years. Lastly, I'll document that the energy required for this most recent bldg., based on energy model, is a small fraction of their total purchase commitments to Community Solar. Do you think we have a chance of receiving credit for this City's commitment to Community Solar?

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Marcus Sheffer LEED Fellow, 7group Jun 18 2015 LEEDuser Expert 65845 Thumbs Up

Take a look at the Renewable Energy production credit in LEED v4. It allows community garden type systems to qualify.

This may or may not qualify for Green Power depending upon who owns the RECs. If the project does not own the RECs they will need to be replaced in order to count.

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Rick Alfandre Principal Alfandre Architecture
Jun 05 2015
Guest
620 Thumbs Up

Utility Bills for REC Green Power Calculations...

Project Location: United States

The link below, fromLEEDuser, indicates that if you can use actual utility bills x 50% x 2 yrs to calculate the required quantity of RECs as opposed to the EAc1 energy model design consumption x 35% x 2yrs.

http://www.leeduser.com/strategy/performing-leed-green-power-calculation...

I am not able to confirm this in the credit language or credit interpretations.

We have a LEED NC 2009 project that we are preparing the construction submittal for. Our actual energy consumption is substantially less than what our energy model suggests. We would like to be able to provide utility information, and use that as the basis of REC purchases.

Can actual utility bills be used instead of the Energy model?

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Marcus Sheffer LEED Fellow, 7group Jun 08 2015 LEEDuser Expert 65845 Thumbs Up

I don't know that it is written in the Reference Guide or any specific interpretation. It is our understanding as reviewers that we are allowed to let project teams use their actual data.

It certainly makes logical sense. The actual data is by far the most accurate. If you were to engage in a green power contract with your utility it would also cover 100% of your actual usage and is not based on the modeling results. So it logically follows that buying RECs based on your actual data would be acceptable as well.

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Ed Healy ESD Consultant, LEED AP BD+C, Hurley Palmer Flatt Feb 19 2016 LEEDuser Member 171 Thumbs Up

Hi there, in a comment from another related thread, Tristan mentions that as per 4/1/12 addendum from USGBC, "If an energy model was used to document compliance with EAc1: Optimize Energy Performance, the data from the energy model must be used as the basis for determining the electricity consumption for this credit." (Link: http://www.leeduser.com/strategy/performing-leed-green-power-calculation...)

@Rick, did you actually used estimated energy volumes and had you used the energy model approach for EAc1? How did it go? I agree with Marcus that if you have the measurements, it is better than the model outputs, however unsure as to how the GBCIThe Green Building Certification Institute (GBCI) manages Leadership in Energy and Environmental Design (LEED) building certification and professional accreditation processes. It was established in 2008 with support from the U.S. Green Building Council (USGBC). would take this on?

Thanks,

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Marcus Sheffer LEED Fellow, 7group Feb 19 2016 LEEDuser Expert 65845 Thumbs Up

Our firm has been a GBCIThe Green Building Certification Institute (GBCI) manages Leadership in Energy and Environmental Design (LEED) building certification and professional accreditation processes. It was established in 2008 with support from the U.S. Green Building Council (USGBC). reviewer for over ten years. It is our understanding that actual data can be used and we have awarded EAc6 for projects who do so.

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Ed Healy ESD Consultant, LEED AP BD+C, Hurley Palmer Flatt Feb 19 2016 LEEDuser Member 171 Thumbs Up

Hi Marcus, thanks for your prompt response. Just to confirm, the evidence that is required is past utility bills, the calculation, and contractual evidence of energy purchase. As our project is located in Sweden (and the information in Swedish), I am assuming a letter from the client confirming the estimate would be enough for the translation?
Many thanks,

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Marcus Sheffer LEED Fellow, 7group Feb 19 2016 LEEDuser Expert 65845 Thumbs Up

You would not necessarily need to submit the actual bills. A summary calculation adding up the monthly data would be fine. If you want to upload one bill to demonstrate the accuracy of the data that is fine. Along with the data a letter from the owner would add to its validity. Depending on the source the harder part may be the documentation of the green power purchase. If buying US based RECs it is pretty easy. If buying a European product refer to the European ACPs for guidance on demonstrating Green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. equivalency.

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Erin Holdenried Sustainable Design Manager AECOM
May 29 2015
LEEDuser Member
316 Thumbs Up

1 year contract?

Project Location: United States

In v2.2 is was acceptable to have a 1 yr contract as long as the total green power purchased was equivalent to 2 years of 35% electricity, or year of 70% electricity for exemplary performanceIn LEED, certain credits have established thresholds beyond basic credit achievement. Meeting these thresholds can earn additional points through Innovation in Design (ID) or Innovation in Operations (IO) points. As a general rule of thumb, ID credits for exemplary performance are awarded for doubling the credit requirements and/or achieving the next incremental percentage threshold. However, this rule varies on a case by case basis, so check the credit requirements..

Can anybody confirm that this is still the case for v2009? That it is the quantity of green power that's important, not the contract length?

Thanks

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Marcus Sheffer LEED Fellow, 7group May 29 2015 LEEDuser Expert 65845 Thumbs Up

Yes it is still the case in 2009 when buying RECs all at once.

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Kathryn West LEED AP BD+C, O+M, Green Globes Professional JLL
Feb 04 2015
Guest
6871 Thumbs Up

Ill advised to submit EAp2 and EAc6 under combined review?

Project Location: United States

If I submit for combined review and get comments on my energy model then my EAc6 RECA Renewable Energy Certificate (REC) is a certificate representing proof that a given unit of electricity was generated from a renewable energy source such as solar or wind. These certificates are able to be sold, traded, or bartered as environmental commodities, where an electricity consumer can buy the renewable energy attributes of electricty to support renewable energy, even if they are consuming generic grid-supplied electricity that may be supplied by nonrenewable sources. purchase can't be approved, right?

It's fairly common to get comments on the energy model so I feel that I'm in a bit of a quandary with my EAc6 purchase volume since I want to submit my project for combined review.

Should I just hold out on my EAc6 purchase until the review comments come in on EAp2 and in the meantime upload a provisional REC contract for review of the language?

Issuing a second purchase order (if energy model consumption gets bumped up) for some miniscule amount of RECs doesn't seem like a good option.

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Marcus Sheffer LEED Fellow, 7group Feb 04 2015 LEEDuser Expert 65845 Thumbs Up

Assuming that your EAp2 is made pending in the preliminary review, then EAc6 would also be pending. If you wait to make your RECA Renewable Energy Certificate (REC) is a certificate representing proof that a given unit of electricity was generated from a renewable energy source such as solar or wind. These certificates are able to be sold, traded, or bartered as environmental commodities, where an electricity consumer can buy the renewable energy attributes of electricty to support renewable energy, even if they are consuming generic grid-supplied electricity that may be supplied by nonrenewable sources. purchase then you will likely get preliminary review comments about not providing the proof of purchase. Maybe that is OK if you are highly confident that the source of the RECs will be easily approved. If you wish to avoid a potential second purchase this could work.

The wild card is if your proposed energy modeling results get adjusted upward in the final review by the reviewer. Reviewers do try to not adjust the proposed electricity usage specifically for this reason but sometimes it is unavoidable. The only way you can attempt to control this potential outcome is to buy some additional RECs as a cushion. This potential exists no matter when you actually buy the RECs.

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Kathryn West LEED AP BD+C, O+M, Green Globes Professional, JLL Feb 10 2015 Guest 6871 Thumbs Up

It's strange that theoretically you could be required to appeal EAc6 in the circumstance that your energy model gets bumped up in the final review, by the reviewer ... then your RECs won't cover your correct usage cause you based it on inaccurate energy model data.

Yeah, that might be the best option in some cases. I'd rather purchase some additional RECs with the final review as a cushion than have any potential of paying $500 to appeal EAc6.

I really appreciate your feedback! Thank you, Marcus!

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Marcus Sheffer LEED Fellow, 7group Feb 10 2015 LEEDuser Expert 65845 Thumbs Up

In this scenario you might not have to pay for an appeal. I think you could make the case that the change was beyond your control and that GBCIThe Green Building Certification Institute (GBCI) manages Leadership in Energy and Environmental Design (LEED) building certification and professional accreditation processes. It was established in 2008 with support from the U.S. Green Building Council (USGBC). should review the EAc6 change for free. Evaluating an additional purchase like this take only a few minutes so you might talk GBCI into a freebie.

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Erica Downs Sustainability & LEED Consultant
Jan 15 2015
LEEDuser Member
2914 Thumbs Up

Subtraction of utility's renewable energy sources from RECs?

Project Location: United States

This may be a silly question, but I said I would ask...

If we can document that XX% of our client's utility-provided electricity is from renewable sources (wind, hydro, solar), can they just purchase the balance (i.e., 35% - XX%) in RECs?

I'm guessing "no".... seems to go against the credit intent.

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Marcus Sheffer LEED Fellow, 7group Jan 15 2015 LEEDuser Expert 65845 Thumbs Up

If you are not purchasing qualified green power from that utility then the answer is as you have guessed.

The renewable sources from the utility could be part of a government mandate like an RPS in that state and would not even qualify as Green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. sources. Often large scale hydro does not meet the Green-e requirements either.

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Erica Downs Sustainability & LEED Consultant Jan 15 2015 LEEDuser Member 2914 Thumbs Up

Thank you for confirming my suspicions, and forming them into a tangible response :)

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Cindy Estrada LEED AP BD&C, SDS Architects, Inc. Apr 09 2015 LEEDuser Member 1030 Thumbs Up

I have a similar situation and it all started with the same question about "making-up" the difference and then I found out that it was not a qualified program, but the utility has a separate program that is green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. certified. They are telling me that by selling us renewable energy directly, (through this program) the REC's generated are retired by the consumer and therefore eligible for EAc6. I guess I was chasing REC's (which is actually the third approach to achieving this credit). What I have found is that certainly my client can purchase renewable energy however in this instance the cost of that energy is 10 times more than the cost of a 2 year REC contract with a separate provider. To me it seems like you can purchase the power and further the market or make a donation to support it through the purchase of REC's.

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Marcus Sheffer LEED Fellow, 7group Apr 09 2015 LEEDuser Expert 65845 Thumbs Up

Both type of Green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. certified purchases serve to further the market for renewables. A direct utility program or a REC purchase can result in very similar market outcomes.

There can often be differences however, and you may not be comparing apples-to-apples. RECs in general do tend to be cheaper to purchase. If all the client cares about is cost then the decision is pretty simple. If there is interest in a deeper understanding then the decision is not quite so simple. Many utility programs support more local wind or solar projects. RECs can be for other renewables (like landfill methane) that may be located in other parts of the country. You can get RECs that are more tailored to location and sources but they tend to cost more too. So if there is interest check the details on location and sources which will provide a better comparison.

Personally I pay more for 100% wind RECs that are built in my region of the country because I want to directly support those projects.

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Cindy Estrada LEED AP BD&C, SDS Architects, Inc. Apr 09 2015 LEEDuser Member 1030 Thumbs Up

Thanks so much Marcus, it is good to know that there are "in between" options - definitely worth investigating.

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Rick Alfandre Principal Alfandre Architecture
Dec 11 2014
Guest
620 Thumbs Up

Renewable Energy Contract question...

Our client is trying to sign a 2 year contract for renewable energy, and the company he is engaged with only offers 1 year.

The owner is committed to green energy, regardless of the credit, and will likely sign contracts with his renewable energy providers for many years to come. Are there alternate ways to demonstrate committment, to comply with the2 year contract requirement?

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Kath Williams LEED Fellow 2011, Principal, Kath Williams + Associates Dec 11 2014 LEEDuser Member 2191 Thumbs Up

The amount purchased is the key. It must match the anticipated usage over a two-year period (at 75% for 2 points plus exemplary performanceIn LEED, certain credits have established thresholds beyond basic credit achievement. Meeting these thresholds can earn additional points through Innovation in Design (ID) or Innovation in Operations (IO) points. As a general rule of thumb, ID credits for exemplary performance are awarded for doubling the credit requirements and/or achieving the next incremental percentage threshold. However, this rule varies on a case by case basis, so check the credit requirements.) as documented by the energy model. We have never had a problem with the length of the contract being an issue.

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Marcus Sheffer LEED Fellow, 7group Dec 12 2014 LEEDuser Expert 65845 Thumbs Up

How are you looking to buy green power? Are you buying RECs or are you signing up for another type of green power offering?

Slight correction to what Kath said - exemplary performanceIn LEED, certain credits have established thresholds beyond basic credit achievement. Meeting these thresholds can earn additional points through Innovation in Design (ID) or Innovation in Operations (IO) points. As a general rule of thumb, ID credits for exemplary performance are awarded for doubling the credit requirements and/or achieving the next incremental percentage threshold. However, this rule varies on a case by case basis, so check the credit requirements. is at 70%.

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Kath Williams LEED Fellow 2011, Principal, Kath Williams + Associates Dec 12 2014 LEEDuser Member 2191 Thumbs Up

Thanks for the edit, Marcus.

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Rick Alfandre Principal, Alfandre Architecture Dec 12 2014 Guest 620 Thumbs Up

We are purchasing green power, not RECs. We have just completed our new building which has a large PV array, which produces most, but not all, our electrical needs. We have a contract with a 3rd party vendor to provide Green-EGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. certified power, to provide what the PV array cannot. The power we purchase is 100% renewable, but the contract lengths are not for more than a year. Would there be an alternative way to demonstrate committment for 2 years?

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Marcus Sheffer LEED Fellow, 7group Dec 14 2014 LEEDuser Expert 65845 Thumbs Up

Thanks for the clarification. If you signed up for a green power product for a one year contract for all of the power the building consumes, then all you will need is a letter from the owner committing them to buying green power for a second year. If it is the difference it gets a bit more complicated. Is it the total consumption or the difference?

The PV array makes things a bit more involved. Who owns the PV array? Were the SRECs sold? If they were not sold then you only need to buy green power for the difference between the renewable production and the building's consumption. If they were sold then you need to buy at least 35% of the total consumption to earn EAc6 because you technically do not have any solar power serving your building from the PV array.

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Grace Ming Senior ESD Consultant
Nov 18 2014
LEEDuser Member
911 Thumbs Up

Certified Green-e REC - Calculation for Exemplary Performance

Hi all,

I would like to clarify the requirement of Green Power to achieve the Exemplary PerformanceIn LEED, certain credits have established thresholds beyond basic credit achievement. Meeting these thresholds can earn additional points through Innovation in Design (ID) or Innovation in Operations (IO) points. As a general rule of thumb, ID credits for exemplary performance are awarded for doubling the credit requirements and/or achieving the next incremental percentage threshold. However, this rule varies on a case by case basis, so check the credit requirements. credit. It was mentioned in LEED 2009 BDC reference guide that the exemplary performance is available to projects that purchase 100% of electricity from the renewable sources. Since the project that we are working on is located outside of the United States where no green energy source is available. We are planning to purchase the certified Green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. RECA Renewable Energy Certificate (REC) is a certificate representing proof that a given unit of electricity was generated from a renewable energy source such as solar or wind. These certificates are able to be sold, traded, or bartered as environmental commodities, where an electricity consumer can buy the renewable energy attributes of electricty to support renewable energy, even if they are consuming generic grid-supplied electricity that may be supplied by nonrenewable sources..

My question is if we purchase the green-e certified REC for 100% of annual energy consumption for 2 years contract, can we achieve the EP for EAc6-Green Power.

Appreciate your kind advice. Thank you.

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Susan Walter Specifications Director, Populous Nov 18 2014 LEEDuser Expert 21697 Thumbs Up

It seems like you are proposing to buy renewable energy here in the United States for a project that is not in the USA. My advice is to contact the GBCIThe Green Building Certification Institute (GBCI) manages Leadership in Energy and Environmental Design (LEED) building certification and professional accreditation processes. It was established in 2008 with support from the U.S. Green Building Council (USGBC). directly and see if this is okay with them. On one hand, you seem to be complying with the letter of the credit. On the other hand, you are avoiding the intent of the credit which encourages in country renewable power sources (and that is my interpretation only).

Is there a local source of renewable power that needs to become an equal to the Geen-e program?

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Kathryn West LEED AP BD+C, O+M, Green Globes Professional, JLL Nov 18 2014 Guest 6871 Thumbs Up

It's not really energy you're buying. It's just a piece of paper that represents the environmental benefit of 1 megwatt hour of a particular type of renewable energy. To me, it doesn't make a difference where you're reducing greenhouse gas emissions as long as it's on planet earth. To reviewers I think they only care that it is "green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. certified" or an approved equivalent.

The use of green-e RECs has been approved on other projects outside of the U.S.

The threshold dropped from 100% to 70% via addendum #100000370

There was another addendum ID#100001177 that said your green power purchase had to be based on your energy model's predicted energy use not the kwhA kilowatt-hour is a unit of work or energy, measured as 1 kilowatt (1,000 watts) of power expended for 1 hour. One kWh is equivalent to 3,412 Btu./sf estimates so make sure you follow that one.

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Kath Williams LEED Fellow 2011, Principal, Kath Williams + Associates Nov 18 2014 LEEDuser Member 2191 Thumbs Up

Within the past year, we have used RECA Renewable Energy Certificate (REC) is a certificate representing proof that a given unit of electricity was generated from a renewable energy source such as solar or wind. These certificates are able to be sold, traded, or bartered as environmental commodities, where an electricity consumer can buy the renewable energy attributes of electricty to support renewable energy, even if they are consuming generic grid-supplied electricity that may be supplied by nonrenewable sources. purchases from Renewable Choice in Denver for our Central America projects. There were no questions by the LEED reviewers and the points were awarded. Please note it is only 70% necessary for the Innovation Credit, not 100%.
We have also used GDF Suez Energie as Green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. equivalent in our Amsterdam project and had it approved, again with no questions.

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Susan Walter Specifications Director, Populous Nov 18 2014 LEEDuser Expert 21697 Thumbs Up

Interesting. As a US resident, I'm happy to have more renewable power in our power grid. I can't help but be a little sad that other countries aren't getting a bigger push on renewables. Sounds like OP has a pathway to earn the points she needs.

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Grace Ming Senior ESD Consultant Nov 20 2014 LEEDuser Member 911 Thumbs Up

Thanks Susan, Kathryn and Kath for your opinions/advices.

Our project is located in Vietnam and there is no the local source of Renewable power. However, the PV system is installed to provide the on-site renewable energy.

Noted that we need to purchase Green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. certified RECA Renewable Energy Certificate (REC) is a certificate representing proof that a given unit of electricity was generated from a renewable energy source such as solar or wind. These certificates are able to be sold, traded, or bartered as environmental commodities, where an electricity consumer can buy the renewable energy attributes of electricty to support renewable energy, even if they are consuming generic grid-supplied electricity that may be supplied by nonrenewable sources. for 70% of estimated energy consumption for 2 years. Thanks all.

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COWI AS
Oct 14 2014
LEEDuser Member
1193 Thumbs Up

Electric consumption based on EAc1

The percentage of RECs is calculated as a percentage of the result of the energy model in EAc1.
Does this include or exclude the amount of renewables on site. I get electric consumption out of EAc1, then I can subtract the electricity I produce on site with solar PV from the electricity consumption in the energy model. Which is the base for EAc6 calculation, the total electricity consumption or the total electricity consumption minus the amount of el. produced on site with solar PV?
Thanks!

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Marcus Sheffer LEED Fellow, 7group Oct 14 2014 LEEDuser Expert 65845 Thumbs Up

Subtract the on-site renewables to determine the quantity of electricity to apply to EAc6.

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Jamison Hill Energy Engineer/LEED Consultant Community Environmental Center
Jun 26 2014
Guest
362 Thumbs Up

Power Purchasing Agreement (PPA) in lieu of REC

Here in NYC, most costumers choose to purchase supply from a third party source, such as an ESCO, that is independent of their utility provider. Many of these suppliers have a green option, that will allow you to purchase 100% wind, as an example. Now assuming the owner has a PPA program in place with the third party to supply 100% of their consumption with green energy, the agreement is good for 2 years, and that the program is Green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products. certified, will this satisfy the requirement of credit? I was hoping yes, but based upon the discussion here, it seems as though, you must pre-purchase 2 years of RECA Renewable Energy Certificate (REC) is a certificate representing proof that a given unit of electricity was generated from a renewable energy source such as solar or wind. These certificates are able to be sold, traded, or bartered as environmental commodities, where an electricity consumer can buy the renewable energy attributes of electricty to support renewable energy, even if they are consuming generic grid-supplied electricity that may be supplied by nonrenewable sources.'s based upon your EAc1 calculations, which may have little to do with your actual consumption. Sounds like a very expensive proposition.

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Marcus Sheffer LEED Fellow, 7group Jun 27 2014 LEEDuser Expert 65845 Thumbs Up

In many cases RECs are far cheaper than the green power premium but each offering can be different. You might want to look at it both ways.

The REC option is the most commonly used way to earn EAc6 but it is not the only way.

You can engage in a green power purchase based on your actual consumption that meets the criteria you mention to satisfy the credit requirements.

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Kathryn West LEED AP BD+C, O+M, Green Globes Professional, JLL Jun 27 2014 Guest 6871 Thumbs Up

I concur with Marcus.

Some other input: they probably don't have a PPA; those are usually for much longer terms. They may have a contract but I wouldn't call signing up with an ESCO a "PPA." If the contract is not for ≥ two years then you may have to provide backup documentation to the reviewer to support the claim that the commitment is in place for two years.

I'd encourage you to get a price quote from a supplier like Renewable Choice, Sterling Planet, 3Degrees, or Carbon Solutions Group- it will probably save you money and bring up fewer questions.

For LEED purposes you just need "national Green-eGreen-e is a program established by the Center for Resource Solutions to both promote green electricity products and provide consumers with a rigorous and nationally recognized method to identify those products." from "any technology."

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Jamison Hill Energy Engineer/LEED Consultant, Community Environmental Center Jun 27 2014 Guest 362 Thumbs Up

I agree to some extent, but it may be hard to tell my owner, to purchase a large quantity of something upfront that does nothing to their actual overall energy consumption, and doesn't replace utility purchase power, even if in the long-run it is cheaper, although I do see the validity in your arguments, and it is an easy ID LEED point and does look good for PR.

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Kathryn West LEED AP BD+C, O+M, Green Globes Professional, JLL Jun 27 2014 Guest 6871 Thumbs Up

yeah, a lot of owners don't like to purchase RECs because the benefit is less tangible than other investments.Sometimes I'm able to show owners the actual projects their REC money supports. Lately I have been promoting EAc6 as one of my favorite LEED credits though because it is just so straightforward compared to some of the other credits I've had the pleasure of working through :)

If you pursue the credit it's good to get the lowest possible price on the electron and the lowest possible price on the REC rather than buying them "bundled." That is, if you want to save money more than you want the convenience of having 1 supplier.

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PATRICK HILLIER
May 19 2014
Guest
414 Thumbs Up

Green-e Energy

We are looking at purchasing thew power for credit EAc6.
1. Can we as the A/E purchase it for the Owner?
2. How do you document the ID credit for 100% power purchased for 2 years?

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Marcus Sheffer LEED Fellow, 7group May 19 2014 LEEDuser Expert 65845 Thumbs Up

Yes you can. Ideally the documentation of the purchase would include the name of the project.

You provide a proof of purchase/contract and document that you have purchased a sufficient quantity of green power. Do this for the credit and the ID is automatic. No need to submit anything else, just fill out the ID credit form in LEED Online. The requirement for an ID credit is 70%, not 100%.

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Caupolican Diaz Sustainable Design Coordinator SMMA
Apr 17 2014
LEEDuser Member
147 Thumbs Up

EP Threshold for LEED-HC

The reference guide does not provide an EP threshold for this credit under the LEED-HC system. Does anyone know if an EP point is available at 70% or 100%?

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Marcus Sheffer LEED Fellow, 7group May 19 2014 LEEDuser Expert 65845 Thumbs Up

70%

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Jean Marais b.i.g. Bechtold DesignBuilder Expert
Apr 08 2014
Guest
10786 Thumbs Up

Catch

Are there any catches to proving that the RECs that we buy are used only on a specific LEED project? Should I ask the seller to specify the facility's name or something on the REC?

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Kathryn West LEED AP BD+C, O+M, Green Globes Professional, JLL Apr 08 2014 Guest 6871 Thumbs Up

I haven't received comments about this but I think it would be a best practice to include the facility name in the contract.

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Hernando Miranda Owner, Soltierra LLC Apr 08 2014 Guest 12646 Thumbs Up

I have done a single bulk purchase of RECs for seven projects. The RECs were in the name of the owner and were for "multiple LEED Projects." Specific projects were not named for the REC.

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Marcus Sheffer LEED Fellow, 7group Apr 08 2014 LEEDuser Expert 65845 Thumbs Up

If it is a matter of allocation of the RECs to a particular project as part of a larger purchase of RECs then you will need a letter from the owner allocating the appropriate number of RECs to that particular project.

If it is not a matter of allocation then ideally the RECs would indicate the owner and the project.

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Dec 08 2016
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