Central Maine Power investor-owned utility
Maine utility rate cases
Rates are set by the Maine Public Utilities Commission. Households are represented by Office of the Public Advocate. The average Maine home pays about $134 a month for 550 kWh (EIA, 2024). Maine households can choose their electricity supplier.
1 pending rate case
1 utility tracked in Maine. Enter your ZIP on the home page to see the one that serves you.
Utilities
Pending, biggest first
1
Central Maine Power one-year distribution rate case
Central Maine Power, ME
CMP's own filing predicts a short-term decrease around mid-2026 followed by a much bigger increase, up to 18 dollars a month, in 2027; the case was still pending as of mid-2026.
-$4a month
Recent decisions
Central Maine Power multi-year rate plan denied
Central Maine Power, ME
CMP's big five-year rate plan was rejected outright; regulators told the company to come back with something smaller and more accountable, which it did in April 2026.
+$35a month
Maine Standard Offer electricity supply rate increase
Central Maine Power, ME
If you have not switched electric suppliers, your CMP bill went up about 11 dollars a month in 2026 because of the statewide Standard Offer price, not because of anything CMP itself did.
+$11a month
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