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2010 State of California Green Building Code Energy monitoring: Provide sub-metering or equivalent combinations of sensor measurements and thermodynamic calculations, if appropriate, to record energy use data for each major energy system in the building, including chillers, heat pumps, packaged AC systems, fans, pumps, cooling towers, boilers and other heating systems, lighting systems, and process loads. This energy use data, once collected, shall be stored within a data management system. Data storage: The data management system must be capable of electronically storing energy data and creating user reports showing hourly, daily, monthly and annual energy consumption for each major energy system. Hourly data shall be retained a minimum of 30 days, daily data shall be retained a minimum of 6 months and monthly data shall be retained a minimum of 2 years. Data access: Hourly energy use data shall be accessible through a central data management system and must be available daily.
Energy Policy Act of 2005 (EPAct 2005) The US Department of Energy guidelines under the Energy Policy Act of 2005 (EPAct), state that building level utility meters are to be included in new major construction and renovation projects in order to track and continuously optimize water, air, gas, energy and steam performance. The metered data is to be used to compare actual performance data from the first year of operation with the energy design target. After one year of occupancy, measure all new major installations using the ENERGY STAR®.
USGBC LEED LEED Credit EA 5 Measurement and verification (M&V) involves recording actual energy use over the course of occupancy, and comparing that data with the estimated energy use seen in the design. The M&V process ensures all systems are performing as specified and identifies any anomalies in equipment, operations procedures or user habits.
The United States Department of Energy Federal Energy Management Program Laws:
Requires all Federal buildings to be metered by October 1, 2012, to ensure efficient energy use and reduce the cost of electricity used in Federal facilities. Advanced meters or metering devices must provide data at least daily and measure the consumption of electricity at least hourly. These devices must be used to the maximum extent practicable. Requires Federal agencies to submit to the Department of Energy (DOE) an implementation plan identifying personnel responsible for achieving metering requirements, and any determination by the agency that advanced meters or metering systems are not practicable in their specific situation. |