Net metering is available to MPEI end-use electricity customers who install generation with an aggregate nameplate rating up to 25 kilowatts on the customer side of the meter using an eligible remewable energy resource system (solar, wind, hydro, biomass or geothermal). Customers must execute an interconnection agreement with MPEI in order to obtain “net metered” service.

MPEI offsets the cost of energy supplied by the utility using excess energy generated and delivered to the utility. Offsets are calculated on a monthly basis using MPEI's retail energy rate (up to the amount of energy delivered by MPEI). If the customer delivers more energy to the utility than he/she consumes, excess amounts not offset in that month are accumulated monthly and used in future billing offsets up to the limit of monthly energy supplied by the utility. At the end of each calendar year, MPEI will credit any energy generation accumulated in excess of monthly offsets using the average wholesale demand and energy cost of power.