On the surface, the basic credit requirements to meter whole building energy sources and major energy end uses seem accessible.
However, the requirements for advanced metering are more rigorous than standard practice. For example, all metering for your building energy sources— including electricity, gas, steam, and so on—must be connected to a communications infrastructure such that you can access the data remotely.
Many buildings with utility owned meters will not meet this component of the credit requirements, even though all of the energy sources are separately metered.
In addition, all energy sources and major sub-systems that make up at least 20% of the annual energy consumption must be separately metered according to the advanced metering requirements. This includes taking meter readings at specific intervals with specific reporting and communication capabilities. You’ll also need to develop a baseline for energy demand and consumption via historic data or energy modeling for each meter, and then program the building automation system (BAS)A building automation system (BAS) uses computer-based monitoring to coordinate, organize, and optimize building control subsystems, including lighting, equipment scheduling, and alarm reporting. to generate an alarm if the actual consumption/demand is more than 5% higher than the predicted baseline.
Overall, this credit requires an integrated approach to energy management and metering and will likely require a significant amount of time and planning to implement if your building does not already comply.
Tenant energy use is not considered to be an energy end use because tenant meters typically monitor energy use for lighting, plug loads, and occasionally other equipment such as supplemental cooling. Because of that, a single system is typically not represented by tenant-level metering, and therefore cannot qualify as an end use for the purposes of this credit.
To support energy management and identify opportunities for additional energy savings by tracking building-level and system-level energy use.
Install advanced energy metering for the following:
The advanced energy metering must have the following characteristics.
Program the facility’s energy management system to set an alarm whenever the energy consumption and peak demand rise above the anticipated amount by more than 5%. The anticipated consumption and peak should be determined by analyzing historical facility performance and weather and operating conditions and should be set on at least monthly, preferably daily.
Demand measurements must be taken in time increments no longer than the increments used for utility billing or in one-hour increments, whichever is less time.
On at least a monthly basis, report the facility’s utility peak demand and total consumption and compare it with the data for the previous month and the same month from the previous year.
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