220 CMR 18.04.Ĭustomers who net meter are billed for their net consumption of electricity. You may use net metering credits to decrease your electricity bill to zero dollars and zero kilowatt hour (kWh) usage. Net metering credits can offset the delivery and supply portions of your electric bill, as well as customer charges. Maximum capacity for a private and hydro net metering facility The SHP cap shares will be determined in the D.P.U. Each SHP cap share is equal to an electric company’s load measured in megawatt-hours in calendar year 2016. State law also requires that the electric companies have a separate cap for facilities participating in the small hydroelectric power net metering program (SHP) that has a combined capacity of 60 MW. For more information on public facilities, please see Designing Net Metering Facilities. Public and private net metering facilities have different size limits and may generate different credit values. Note that cap exempt facilities (cap exempt facilities are those with a nameplate rating less than ten kilowatts on a single-phase circuit or 25 kilowatts on a three-phase circuit) will be able to net meter even if the relevant cap is full. Under the GP, once an electric company fills its net metering cap, new customers that require space under that cap cannot participate in net metering. Unitil d/b/a Fitchburg Gas and Electric Light Company National Grid Massachusetts Electric Company Each GP cap is equal to a percentage of each electric company’s highest historical peak load, which is the most electricity consumed by the electric company’s customers at any one time. State law requires that the electric companies must have separate net metering caps for public and private net metering facilities in the general net metering program (GP). 2 megawatts (MW) or less for a private facility.If your net metering facility uses wind, solar, or anaerobic digestion technology, then it must be: Your net metering facility may use any type of generating technology, regardless of whether it is a renewable technology, if it is smaller than or equal to 60 kilowatts (kW). For most purposes, including credit calculation, there is no difference between net metering and virtual net metering. Massachusetts does not differentiate between behind-the-meter net metering (electricity generation consumed on the same site it is generated) versus virtual net metering (electricity generation consumed at a site other than where the electricity is generated). When you generate excess electricity and “export” electricity to the electric grid, your meter spins backward. When you use electricity from the electric company, your meter spins forward. These facilities are connected to a meter, which measure the net quantity of electricity that you use. Common examples of net metering facilities include solar panels on a home or a wind turbine at a school. Net metering allows you to generate your own electricity to offset your electricity usage. If you are a customer of a regulated electric company (Eversource, National Grid, or Unitil), you may net meter. MW of renewables can net meter in MA under the caps
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