Healthcare-v2009 EApc95: Alternative Energy Performance Metric ACP

  • Using metrics other than cost

    The intent of this pilot alternative compliance path is to allow an alternate metric for documenting performance improvement when using Option 1. Whole Building Simulation as the compliance path in LEED's energy efficiency prerequisite and credit. The ACP does not change any other aspect of the referenced prerequisites and credits.

    The path allows use of source energySource energy is the total amount of raw fuel required to operate a building; it incorporates all transmission, delivery, and production losses for a complete assessment of a building's energy use., greenhouse gas emissions, primary energy, or Time Dependent Valuation (TDV) Energy as a metric. Typically LEED uses energy cost as a metric.

  • USGBC

    Excerpted from LEED 2009 for Healthcare

    EA Pilot Credit 95: Alternative Energy Performance Metric

    Intent

    The intent of this pilot alternative compliance path is to allow an alternate metric for documenting performance improvement when using Option 1. Whole Building Simulation as the compliance path in EA Prerequisite Minimum Energy Performance, EA Credit Optimize Energy Performance, and EA Credit On-site Renewable Energy. The ACP does not change any other aspect of the referenced prerequisites and credits.

    Requirements

    EA Prerequisite 2 / EA Credit 1

    Calculate and report all metrics identified below. Refer to the credit specific documentation requirements below for details on the reporting requirements.

    Comply with all requirements of Option 1. Whole Building Energy Simulation, except that any of the following metrics may be used in lieu of cost to calculate the percentage improvement:

    • Source energySource energy is the total amount of raw fuel required to operate a building; it incorporates all transmission, delivery, and production losses for a complete assessment of a building's energy use.. The total source energy consumption shall be calculated for the baseline building performanceThe annual energy cost for a building design, used as a baseline for comparison with above-standard design. rating and for the proposed building performance rating, and the percentage improvement shall be determined using source energy. Use the ENERGY STAR Source-Site Ratios for each building energy source from the Energy Star Portfolio Manager Technical Reference: Source Energy for projects in the U.S. and Canada. For international projects, use the U.S. source-to-site ratios or published source-to-site ratios for the country or region where the project is located.
    • Greenhouse gas emissions. The total greenhouse gas emissions, in terms of carbon dioxide equivalents, shall be calculated for the baseline building performance rating and for the proposed building performance rating, and the percentage improvement shall be determined using carbon dioxide equivalent emissions.

      • Energy Star Factors: Greenhouse gas emission factors for each building energy source shall be determined from the ENERGY STAR Portfolio Manager Technical Reference: Greenhouse Gas Emissions. Applicable only for projects in the U.S. and Canada.
      • ISO 16346:2013: Greenhouse gas emission factors for each building energy source shall be determined consistently with ISO Standard 16346:2013 and published for the country or region where the project is located. Applicable internationally, including projects in the U.S. and Canada.
    • Primary energy. The total primary energy shall be calculated for the baseline building performance rating and for the proposed building performance rating, and the percentage improvement shall be determined using the primary energy. Primary Energy Factors for each building energy source shall be determined consistently with ISO Standard 16346:2013 and published for the country or region where the project is located. This path is available for locations where public databases of the Primary Energy Factors calculated using ISO Standard 16346:2013 are available. Projects in all other locations must demonstrate a reasonable effort to obtain and advocate for availability of the data necessary to compute Primary energy.
    • Time Dependent Valuation (TDV) Energy: The total TDV energy shall be calculated for the baseline building performance rating and for the proposed building performance rating, and the percentage improvement shall be determined using TDV energy. Time Dependent Valuation factors must be calculated consistently with the Time Dependent Valuation of Energy for Developing Building Energy Efficiency Standards published in 2011. This path is available for projects located in California and any project able to obtain the necessary data through reasonable effort. Projects in all other locations must demonstrate a reasonable effort to obtain and advocate for availability of the data necessary to compute TDV energy.
    EA Credit 2

    The percentage of on-site renewable energy shall be calculated using the same metric as is used in EA Prerequisite 2: Minimum energy performance. Renewable energy cost shall be replaced with the renewable energy generation multiplied by the relevant factor associated with the site energy offset by the renewable generation.

    Documentation Requirements

    General

    Register for the pilot credit

    Pilot Credit Survey

    Credit Specific
    EA Prerequisite 2 / EA Credit 1

    Provide all standard documentation required for each of the credits submitted. Additionally for every project provide:

    • EApc95 Documentation Spreadsheet along with the uploads referenced in the spreadsheet and below. The spreadsheet and supporting documentation must include:

        • A brief narrative describing why the selected performance metric was chosen and how the selected metric was used to influence decisions around energy use in the design process.
        • The baseline building performance cost and proposed building performance cost (calculated as currently required under EAp2), and the percentage cost improvement. Include information on the utility rates used, or (if applicable) the national average costs used in lieu of specific utility rates.
        • The baseline annual and monthly peak electric demand and the proposed annual and monthly peak electric demand, and the percentage improvement in annual peak demand.
        • Source energy consumption calculated using the ENERGY STAR Source-Site Ratios for each building energy source from the Energy Star Portfolio Manager Technical Reference: Source Energy (https://portfoliomanager.energystar.gov/pdf/reference/Source%20Energy.pdf), and the percentage improvement in source energy consumption using this method. If not using the ENERGY STAR Source-Site Ratios for the percentage improvement, provide the source energy factors used and a copy of the published document used for the site-to-source energy conversion factorsEstimates are presented in customary U.S. units. Floorspace estimates may be converted to metric units by using the relationship: 1 square foot is approximately equal to 0.0929 square meters. Energy estimates may be converted to metric units by using the relationship: 1 Btu is approximately equal to 1,055 joules; one kilowatthour is exactly equal to 3,600,000 joules; and one gigajoule (109 joules) is approximately 278 kilowatthours (kWh).. Sufficient information should be provided to show that the Source-Site Ratios are calculated consistently with the method provided in the ENERGY STAR Portfolio Manager Technical Reference: Source Energy.
        • The baseline and proposed Greenhouse Gas emissions, and the percentage improvement in greenhouse gas emissions. If not using the ENERGY STAR Portfolio Manager Technical Reference: Greenhouse Gas Emissions, then provide the greenhouse gas emissions factorsAverage greenhouse gas emissions, in metric tons of carbon equivalent (MtCO2e), per unit of energy for a particular type of energy source used and a copy of the published document used for the greenhouse gas emission factors. The document should specifically note that the factors have been calculated consistently with ISO 16346:2013.
    For Primary Energy and TDV energy, either:
    • Total primary energy consumption calculated according to ISO 16346:2013 and the percentage improvement in primary energy consumption using this method. Provide the primary energy factors used and a copy of the published document used for the primary energy factors. The document should specifically note that the factors have been calculated consistently with ISO 16346:2013.
    • The total TDV energy consumption calculated in accordance with Time Dependent Valuation of Energy for Developing Building Energy Efficiency Standards published in 2011 (http://www.energy.ca.gov/title24/2013standards/prerulemaking/documents/g...) and the percentage improvement in TDV energy consumption using this method. Provide a narrative indicating the TDV factors used and a link to or copy of the document that lists those factors. If not using Title-24 compliance mode, then provide a copy of the schedule used to generate the TDV energy consumption.
    • OR

    • Documentation demonstrating that the team has attempted to collect the data necessary to calculate the metric for each method not used and has advocated for energy data transparency where any metric was not able to be determined.
    EA Credit 2

    Provide supplemental calculations showing how the renewable energy value in the numerator was calculated, including the renewable energy consumption and the factors used for source-to-site, greenhouse gas emissions, primary energy, or TDV energy.

    Survey Questions

    Complete survey questions here

    • Which energy performance metric was selected by the project team?
    • Please summarize briefly the reason why the metric selected was chosen (note that a narrative must still be uploaded to LEED Online for this documentation requirement)?
    • How likely are you to select the same performance metric for future projects?
    • Is there an energy performance metric not included that the project team used to influence the design?
    • Was the project team able to obtain the information necessary to calculate Primary Energy?
    • Was the project team able to obtain the information necessary to calculate TDV Energy?
    • If no to either of the previous two questions, did the project team receive a response to the energy data transparency advocacy letter that was sent?
    Changes
    • 6/1/2016:

      Added language: "Calculate and report all metrics identified below. Refer to the credit specific documentation requirements below for details on the reporting requirements."

      Added spreadsheet for documenation

  • USGBC

    Excerpted from LEED 2009 for Healthcare

    EA Pilot Credit 95: Alternative Energy Performance Metric

    Intent

    The intent of this pilot alternative compliance path is to allow an alternate metric for documenting performance improvement when using Option 1. Whole Building Simulation as the compliance path in EA Prerequisite Minimum Energy Performance, EA Credit Optimize Energy Performance, and EA Credit On-site Renewable Energy. The ACP does not change any other aspect of the referenced prerequisites and credits.

    Requirements

    EA Prerequisite 2 / EA Credit 1

    Calculate and report all metrics identified below. Refer to the credit specific documentation requirements below for details on the reporting requirements.

    Comply with all requirements of Option 1. Whole Building Energy Simulation, except that any of the following metrics may be used in lieu of cost to calculate the percentage improvement:

    • Source energySource energy is the total amount of raw fuel required to operate a building; it incorporates all transmission, delivery, and production losses for a complete assessment of a building's energy use.. The total source energy consumption shall be calculated for the baseline building performanceThe annual energy cost for a building design, used as a baseline for comparison with above-standard design. rating and for the proposed building performance rating, and the percentage improvement shall be determined using source energy. Use the ENERGY STAR Source-Site Ratios for each building energy source from the Energy Star Portfolio Manager Technical Reference: Source Energy for projects in the U.S. and Canada. For international projects, use the U.S. source-to-site ratios or published source-to-site ratios for the country or region where the project is located.
    • Greenhouse gas emissions. The total greenhouse gas emissions, in terms of carbon dioxide equivalents, shall be calculated for the baseline building performance rating and for the proposed building performance rating, and the percentage improvement shall be determined using carbon dioxide equivalent emissions.

      • Energy Star Factors: Greenhouse gas emission factors for each building energy source shall be determined from the ENERGY STAR Portfolio Manager Technical Reference: Greenhouse Gas Emissions. Applicable only for projects in the U.S. and Canada.
      • ISO 16346:2013: Greenhouse gas emission factors for each building energy source shall be determined consistently with ISO Standard 16346:2013 and published for the country or region where the project is located. Applicable internationally, including projects in the U.S. and Canada.
    • Primary energy. The total primary energy shall be calculated for the baseline building performance rating and for the proposed building performance rating, and the percentage improvement shall be determined using the primary energy. Primary Energy Factors for each building energy source shall be determined consistently with ISO Standard 16346:2013 and published for the country or region where the project is located. This path is available for locations where public databases of the Primary Energy Factors calculated using ISO Standard 16346:2013 are available. Projects in all other locations must demonstrate a reasonable effort to obtain and advocate for availability of the data necessary to compute Primary energy.
    • Time Dependent Valuation (TDV) Energy: The total TDV energy shall be calculated for the baseline building performance rating and for the proposed building performance rating, and the percentage improvement shall be determined using TDV energy. Time Dependent Valuation factors must be calculated consistently with the Time Dependent Valuation of Energy for Developing Building Energy Efficiency Standards published in 2011. This path is available for projects located in California and any project able to obtain the necessary data through reasonable effort. Projects in all other locations must demonstrate a reasonable effort to obtain and advocate for availability of the data necessary to compute TDV energy.
    EA Credit 2

    The percentage of on-site renewable energy shall be calculated using the same metric as is used in EA Prerequisite 2: Minimum energy performance. Renewable energy cost shall be replaced with the renewable energy generation multiplied by the relevant factor associated with the site energy offset by the renewable generation.

    Documentation Requirements

    General

    Register for the pilot credit

    Pilot Credit Survey

    Credit Specific
    EA Prerequisite 2 / EA Credit 1

    Provide all standard documentation required for each of the credits submitted. Additionally for every project provide:

    • EApc95 Documentation Spreadsheet along with the uploads referenced in the spreadsheet and below. The spreadsheet and supporting documentation must include:

        • A brief narrative describing why the selected performance metric was chosen and how the selected metric was used to influence decisions around energy use in the design process.
        • The baseline building performance cost and proposed building performance cost (calculated as currently required under EAp2), and the percentage cost improvement. Include information on the utility rates used, or (if applicable) the national average costs used in lieu of specific utility rates.
        • The baseline annual and monthly peak electric demand and the proposed annual and monthly peak electric demand, and the percentage improvement in annual peak demand.
        • Source energy consumption calculated using the ENERGY STAR Source-Site Ratios for each building energy source from the Energy Star Portfolio Manager Technical Reference: Source Energy (https://portfoliomanager.energystar.gov/pdf/reference/Source%20Energy.pdf), and the percentage improvement in source energy consumption using this method. If not using the ENERGY STAR Source-Site Ratios for the percentage improvement, provide the source energy factors used and a copy of the published document used for the site-to-source energy conversion factorsEstimates are presented in customary U.S. units. Floorspace estimates may be converted to metric units by using the relationship: 1 square foot is approximately equal to 0.0929 square meters. Energy estimates may be converted to metric units by using the relationship: 1 Btu is approximately equal to 1,055 joules; one kilowatthour is exactly equal to 3,600,000 joules; and one gigajoule (109 joules) is approximately 278 kilowatthours (kWh).. Sufficient information should be provided to show that the Source-Site Ratios are calculated consistently with the method provided in the ENERGY STAR Portfolio Manager Technical Reference: Source Energy.
        • The baseline and proposed Greenhouse Gas emissions, and the percentage improvement in greenhouse gas emissions. If not using the ENERGY STAR Portfolio Manager Technical Reference: Greenhouse Gas Emissions, then provide the greenhouse gas emissions factorsAverage greenhouse gas emissions, in metric tons of carbon equivalent (MtCO2e), per unit of energy for a particular type of energy source used and a copy of the published document used for the greenhouse gas emission factors. The document should specifically note that the factors have been calculated consistently with ISO 16346:2013.
    For Primary Energy and TDV energy, either:
    • Total primary energy consumption calculated according to ISO 16346:2013 and the percentage improvement in primary energy consumption using this method. Provide the primary energy factors used and a copy of the published document used for the primary energy factors. The document should specifically note that the factors have been calculated consistently with ISO 16346:2013.
    • The total TDV energy consumption calculated in accordance with Time Dependent Valuation of Energy for Developing Building Energy Efficiency Standards published in 2011 (http://www.energy.ca.gov/title24/2013standards/prerulemaking/documents/g...) and the percentage improvement in TDV energy consumption using this method. Provide a narrative indicating the TDV factors used and a link to or copy of the document that lists those factors. If not using Title-24 compliance mode, then provide a copy of the schedule used to generate the TDV energy consumption.
    • OR

    • Documentation demonstrating that the team has attempted to collect the data necessary to calculate the metric for each method not used and has advocated for energy data transparency where any metric was not able to be determined.
    EA Credit 2

    Provide supplemental calculations showing how the renewable energy value in the numerator was calculated, including the renewable energy consumption and the factors used for source-to-site, greenhouse gas emissions, primary energy, or TDV energy.

    Survey Questions

    Complete survey questions here

    • Which energy performance metric was selected by the project team?
    • Please summarize briefly the reason why the metric selected was chosen (note that a narrative must still be uploaded to LEED Online for this documentation requirement)?
    • How likely are you to select the same performance metric for future projects?
    • Is there an energy performance metric not included that the project team used to influence the design?
    • Was the project team able to obtain the information necessary to calculate Primary Energy?
    • Was the project team able to obtain the information necessary to calculate TDV Energy?
    • If no to either of the previous two questions, did the project team receive a response to the energy data transparency advocacy letter that was sent?
    Changes
    • 6/1/2016:

      Added language: "Calculate and report all metrics identified below. Refer to the credit specific documentation requirements below for details on the reporting requirements."

      Added spreadsheet for documenation

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