Text Size: A A

Net Energy Billing

Maine’s electric utilities are required to offer net energy billing to customers that generate qualifying renewable electricity.  Net energy billing provides customers the ability to offset the cost of their electricity with energy their generating system exports to the grid.  More information is available through the Maine Public Utilities Commission Chapter 313, Customer Net Energy Billing

Phone: (207) 973-2607
Toll free: 1-855-770-3985
Email: NetBilling@versantpower.com


NEB Application and Contracts

Customer Net Energy Billing Agreement Application
Versant Power ISO CI Tariff Rate CNEBA
Versant Power ISO Municipality CNEBA
Versant Power ISO Share Financial Interest Multi Owner CNEBA
Versant Power ISO Single Owner CNEBA
Versant Power ISO Single Owner Multiple Accounts CNEBA


What is Net Energy and Net Energy Billing?

"Net energy" is the difference between the kilowatt-hours consumed by a customer or shared ownership customers and the kilowatt-hours generated by the customer's or shared ownership customers' eligible facility over a billing period.

"Net energy billing" is a billing and metering practice under which a customer or shared ownership customers are billed on the basis of net energy over the billing period taking into account accumulated unused kilowatt-hour credits from the previous billing period.


What Customers Qualify?

Any customer of a transmission and distribution utility that owns or has the legal rights to energy generated using a renewable fuel or technology as specified in 35-A M.R.S.A. § 3210(2)(C) or is a micro-combined heat and power system, from a facility with an installed capacity of 660 kW or less to serve its own electricity requirements may elect net energy billing for up to 10 "Shared Ownership" locations in the Versant Power territory. (See MPUC Ch.313 and MPUC Ch. 324 for eligibility requirements)


What Fuels/Technologies Qualify?

  • Fuel cells
  • Tidal power
  • Solar arrays and installations
  • Wind power installations
  • Geothermal installations
  • Hydroelectric generators
  • Biomass generators
  • Generators fueled by municipal solid waste in conjunction with recycling; or a micro-combined heat and power system

How Does Net Energy Billing Work?

A customer may accumulate unused kilowatt-hour credits and apply them against kilowatt-hour usage on a rolling 12-month basis. At the end of each 12-month period, any accumulated unused kilowatt-hour credits shall be eliminated and may not be applied against any future kilowatt-hour usage. The customer will receive no compensation for unused kilowatt-hour credits.


Does Net Energy Billing Apply to Generation?

Wind Power

A customer that has elected net energy billing may obtain generation service from any competitive electricity provider that agrees to provide service on a net energy basis. If the customer obtains service from the standard offer, the standard offer provider shall provide service on a net energy basis.



How Do I Get Started?

A customer must follow the procedures explained in the MPUC Chapter 324, Small Generator Interconnection Procedures and should become familiar the MPUC's Chapter 313, Net Energy Billing. Please see the Interconnection page.

Please Identify Your Service Area

Click on your district on the map, or select a zip code or town from the lists.

Select Your District on the Map Below

Maine Public Service District Bangor Hydro District


Emera Maine provides electric delivery service to two areas – the Bangor Hydro District and the Maine Public District.

  • The Bangor Hydro District includes Hancock, Piscataquis and Washington Counties and most of Penobscot County.
  • The Maine Public District serves Aroostook County and a small piece of Penobscot County.

Because some information varies by District, please identify your District on the map above, or enter your town or zipcode. If you need information on both Districts,  switch back and forth at any time by selecting the district selector button.

If the browser you are using has cookies enabled, you will only have to make this selection once.( If your browser has cookies disabled your selection will be remembered until you close the browser, but not when you return to the site.)