Green Power Purchasing
Administered by Maine Green Power
Maine Green Power lets you offset your electricity use with clean, locally-produced renewable energy by adding a monthly charge to your utility bill—options range from $4.95/month for 250 kWh to $8.95/month for 500 kWh. You can enroll online through Maine Green Power's website if you're a CMP or Versant Power customer, and your purchase amount will be matched with Renewable Energy Certificates from Maine renewable projects like solar, wind, hydro, and biomass.
This is a utility-administered green power purchasing program rather than a contractor-driven incentive; it allows residential and commercial customers to voluntarily purchase renewable energy at tiered monthly rates ($4.95–$8.95 per participation block), with Maine-produced RECs backing each purchase. Contractors may benefit by informing clients about the program as a complementary option to on-site renewable installations.
Maine Green Power is a REC-matching program administered by the Public Utilities Commission where customers voluntarily purchase renewable energy at fixed monthly rates (Half Block: $4.95/250 kWh; One Block: $8.95/500 kWh; Ten+ Blocks: $6.45/block), with funds supporting Maine renewable resources. The program serves residential and commercial customers of CMP and Versant Power; larger commercial enrollments receive outreach within 5 business days to discuss appropriate levels and recognition. State government established a separate 50% renewable purchasing goal in 2003, achieved by 2007 through a mix of the existing renewable portfolio standard (30%) and RECs from Rumford Falls hydropower (70%).
Program details
- Program ID
- 899
- Last updated
- 1/3/2026
Eligibility
- Sectors
- commercial residential state government
- Technologies
- solar thermal electric solar photovoltaics wind (all) biomass hydroelectric municipal solid waste combined heat & power fuel cells using non-renewable fuels landfill gas tidal wave fuel cells using renewable fuels
Program summary
Residential and Commercial Green Power Purchasing
Maine Green Power allows Maine electric customers to choose clean, local renewable energy for their home or business. When you sign up, you will see an additional line item charge on your monthly utility bill for participating in Maine Green Power. The Maine Green Power Program matches the purchase amount with Renewable Energy Certificates, or RECs, that are produced in Maine.
The following participation levels exist for homes/businesses:
- Half Block (250 kWh) purchase per month: $4.95 per ½ Block ($0.0198/kWh)
- One Block (500 kWh) purchase per month: $8.95 per Block ($0.0179/kWh)
- Ten Blocks (5,000 kWh) or more purchase per month: $6.45 per Block ($0.0129/kWh)
- Businesses that choose to enroll in the "10 Blocks or More" option will be contacted by a Maine Green Power representative within 5 business days to discuss the appropriate enrollment level and recognition benefits for your company.
For more information, or to enroll, visit here.
Government Green Power Purchasing
In 2003, Maine's governor established a goal for the state government to buy at least 50% of its electricity from "reasonably priced" renewable power sources, paid for by energy conservation improvements in all state buildings. The goal was contained in the governor's "Vision" for meeting Maine's environmental needs. As of March 2007, Maine's state government was purchasing 100% of its power from renewable energy resources. The state's existing renewable energy portfolio standard accounts for 30% of this total. For the remaining 70%, the state is purchasing renewable energy certificates (RECs) from the Rumford Falls hydropower project in Rumford, Maine.
Furthermore, legislation passed in 2009 (LD 1075) requires that all electricity used in state-owned buildings must come from renewable energy and that state agencies may give preference to community-based renewable energy generators. Combined heat and power projects were then added to the list eligible energy resources via legislation passed in 2021 (L.D. 1202).
Contact & resources
- Additional resources
Please verify current program details with the administering agency before making any financial decisions.
