On March 1, 2015, the MPUC presented a report on the value of solar energy to the Joint Standing Committee on Energy, Utilities and Technology in the Maine Legislature, fulfilling a request made in last year's session.
Weighing such factors as avoided energy supply costs, avoided transmission & distribution capacity costs, and most notably the social cost of carbon, SO2, and NOx emissions, the report sets the long-term value of solar energy at over 33 cents/kWh. By comparison, solar homeowners only receive a credit worth about 13 cents/kilowatt-hour on their bills. The report goes on to suggest implementation options and incentives that might speed wider adoption of solar technology in Maine.
Read an excellent analysis by Tux Turkel at the Portland Press Herald.