D.C. Mun. Regs. tit. 15, r. 15-902
A customer that has elected net energy billing may obtain generation service from any Competitive Electricity Supplier that agrees to provide service on a net energy basis. In such circumstances, the net inflow or outflow of electricity supplied to or by the customer-generator will be billed or credited at the Competitive Electricity Supplier's energy rate specified in the agreement between the customer- generator and the Competitive Electricity Supplier. The Competitive Electricity Supplier shall be responsible for calculating the net energy bill (or credit) amount for each billing period.
For customer-generators purchasing generation and transmission service from a Competitive Electricity Supplier, if the customer- generator's kilowatt-hour usage during the billing period exceeds the kilowatt-hours generated by the customer-generator during that period, the customer- generator will be billed for the net energy delivered by the Electric Company at the full retail distribution rate for distribution service. In no event shall distribution-related usage charges be applied to the kilowatt- hours generated by the customer's net metering facility.
For a customer of a competitive electricity supplier and is a customer-generator:
If the electricity generated during the billing period by the customer-generator's facility exceeds the customer-generator's kWh usage during the billing period (excess generation), the customer generator's next monthly bill will be credited in kWh by the Electric Company for the excess generation. At the end of the calendar year (December), excess generation that exceeds one hundred percent (100%) of the annual consumption, will be compensated at the generation rate only, per kWh. If a credit is greater than twenty-five dollars ($25) at the end of the calendar year, the Electric Company is directed to issue a refund to the customer. If the excess generation credit at the end of the calendar year is not greater than $25, the remaining credit shall be carried over until such time as the full credit has been exhausted.
Net energy billing applies only to kilowatt-hour usage charges. Net energy billing customers are responsible for all other charges applicable to the customer's rate class and recovered through fixed amounts or over units other than kilowatt-hours, including customer and/or demand charges, as applicable.
D.C. Mun. Regs. tit. 15, r. 15-902