# COMAR Title 20 — Public Service Commission

## Subtitle 50 — Service Supplied by Electric Companies

### Chapter 10 — Net Metering

#### Regulation .01 General.

*COMAR 20.50.10.01*

A. Net Energy Metering. An electric company shall provide net metering of electric service to eligible customer-generators using a meter capable of net energy metering until the rated generating capacity of all eligible customer-generators in the State reaches 1,500 megawatts.

B. Maximum Size of Electric Generating System — Net Metering. An electric company may not provide net energy metering to an eligible customer-generator operating an electric generating system that has a rated capacity of more than 2 megawatts.

C. Micro Combined Heat and Power Electric Generating System. An electric company may not provide net energy metering to an eligible customer-generator operating a micro combined heat and power electric generating system that has a rated capacity of more than 30 kilowatts.

D. Qualifying for Net Energy Metering.

  (1) In order to initially qualify for net energy metering:

    (a) An eligible customer-generator shall comply with the provisions of COMAR 20.50.09; and

    (b) The eligible customer-generator’s proposed electric generating system may not exceed 200 percent of the eligible customer-generator’s baseline annual usage.

  (2) Upgraded Electric Generating Systems.

    (a) When an eligible customer-generator receiving net energy metering proposes an upgrade to an existing electric generating system, an electric company shall re-evaluate the baseline annual usage to determine whether the electric generating system continues to meet the requirements of §D(1)(b) of this regulation.

    (b) If the eligible customer-generator’s upgraded electric generating system does not meet the requirements of §D(1)(b) of this regulation, an electric company may discontinue net energy metering.