1
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
Central Maine Power
Investor-owned utility (Central Maine Power Co), regulated by the Maine Public Utilities Commission. The average Maine home pays about $134 a month for electricity (EIA, 2024).
1 pending rate case
Each case below links its docket and sources.
$134
average Maine home today (EIA, 2024)
$130
if everything pending is approved as asked
-$4
a month
The ask, not the outcome. Your own bill scales with your usage; a home using twice the state average would see roughly twice the change.
Pending
Decided
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
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
How to have a say
Rate cases are decided by the Maine Public Utilities Commission, which takes written comments on every docket and holds public hearings on the big ones. Comment deadlines and hearing dates are on each case page above when we have them. The office that argues for households in these cases is the Office of the Public Advocate; its filings are the plain-English version of the utility's numbers.
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Corrections and tips: [email protected]. Every figure links to its source on the case page.