Maine · Investor Owned · investor

Central Maine Power Co Electricity Rates

Average residential price, customers served and derived annual usage from EIA Form 861, 2024 release.

23.43¢
Avg residential price / kWh
519.3K
Residential customers
-2.9%
vs Maine average
$1,567
Implied avg annual bill

Among 194 utilities with 100,000 or more residential customers, Central Maine Power Co ranks #16 by average cents per kWh and #52 by residential customers. Central Maine Power Co charged an average of 23.43¢ per kWh to residential customers in 2024 - close to the Maine average and far above the Form 861 US customer-weighted average.

San Diego Gas & Electric Co ranks #1 of 194 by average residential cents per kWh (43.63¢, 307,982 customers, customers rank #90). Florida Power & Light Co ranks #1 of 194 by residential customers (5,236,277 customers at 13.71¢, price rank #122). The highest average rate is not the largest customer count. Central Maine Power Co is investor owned - a shareholder-owned company whose retail rates are set through a state regulatory commission. Its reported average residential price is close to the Maine customer-weighted average (-2.9%). Its customers used below the national residential norm at about 6,686 kWh a year each.

  • San Diego Gas & Electric Co 43.63¢ · customers rank #90
  • Florida Power & Light Co 5,236,277 customers · price rank #122

Highest average rate is not the most customers

Residential customers for the average-rate #1 and customers #1 utilities among 194 with 100,000 or more residential customers

residential customers
  • FL size
    5,236,277
  • CA rate
    307,982

What this shows San Diego Gas & Electric Co ranks #1 of 194 by average residential cents per kWh (43.63¢, 307,982 customers, customers rank #90). Florida Power & Light Co ranks #1 of 194 by residential customers (5,236,277 customers at 13.71¢, price rank #122). The highest average rate is not the largest customer count.

Source EIA Form 861 residential survey, latest release. Average cents per kWh and customer counts from the same rows; no tariff or bill is implied. As of 2024

EIA Form 861 utility filing desk

Release ME-2024 · Central Maine Power Co NEAR STATE

Central Maine Power Co · Form 861 2024 · NEAR STATE

  • RATE 23.43¢/kWh
  • RANK #5/8
  • VS-ST -2.9%
  • VS-US +36.9%
  • CUST 519k
  • BILL $1,567
  • OWN IOU
  • PHOTO NJ 0.02¢
  • BOOK 52/194

Nearest Form 861 price peer: Atlantic City Electric Co (NJ) (-0.02¢ gap)

EIA Form 861 residential filing stamps for this utility record. Read with this utility → · Maine rates

Central Maine Power Co in the Form 861 price neighbourhood

Average residential ¢/kWh among this utility and nearest indexable peers

¢/kWh
  • NH
    23
  • NY
    23
  • NJ
    23
  • this util
    23
  • CA
    24

What this shows Central Maine Power Co reports 23.43¢/kWh, corpus customer-rank 52 of 194.

Source EIA Form 861 residential survey As of 2024
D51/100

RateWatt cost context

How Central Maine Power Co compares on reported cost context

A weighted comparison, not a tariff quote, reliability grade, service-quality score, or recommendation. Lower price and lower implied annual bill score better against reporting utilities in Maine; the state generation context is shown separately.

Price against state peers
43/100

23.43¢/kWh · median 21.15¢/kWh

Implied annual bill against state peers
43/100

$1,567/yr · median $1,557/yr

State renewable generation context
84/100

58.4% · median 22.8%

Weights: 50% price, 30% implied annual bill, 20% state renewable-generation context. Unreported inputs are excluded and the remaining weights are redistributed. Price and bill use EIA Form 861 (2024); generation context uses EIA state generation data (2025) and is not attributed to this provider.

Rate comparison

How this price compares

Ranked by price against the 8 utilities reporting residential rates in Maine, Central Maine Power Co comes 5th of 8. The state's range runs from Houlton Water Company at 11.95¢ to Palmetto Solar, LLC at 41.57¢, so where a household sits inside Maine depends far more on which utility serves it than on the statewide average alone.

Against the 1 other investor owned utilities reporting in Maine, whose customer-weighted average is 28.08¢, Central Maine Power Co is below its own ownership class within the state (-16.5%).

State price distribution

Where Central Maine Power Co sits among Maine utilities

2024 average residential price across the 8 utilities reporting a rate in Maine

23.43¢/kWh 43rd affordability percentile More affordable than 43% of 7 other utilities

Central Maine Power Co

average residential price, equal-width bands

Each bar spans 2¢/kWh. Taller bars contain more utilities; the dashed marker locates this utility. Hover, focus or tap a bar for its exact count and share.

Source EIA Form 861 · 2024

Central Maine Power Co average residential price against three benchmarks, 2024
BenchmarkPrice / kWhDifference
Central Maine Power Co 23.43¢ -
Maine (customer-weighted, 8 utilities) 24.14¢ -2.9%
US Form 861 customer-weighted average (1.5K utilities) 17.11¢ +36.9%
Investor Owned customer-weighted US avg (183 utilities) 18.37¢ +27.6%

Rate against consumption: Maine utilities

Each dot is one of the 8 Maine utilities reporting both a residential price and residential sales in 2024, placed by its rank percentile within that group rather than its raw value, so one very large utility cannot flatten the rest. Bubble size follows customers served, rank-scaled so a utility with millions of customers cannot swamp the rest. Central Maine Power Co is highlighted. In Maine the cheapest rate belongs to Houlton Water Company (11.95¢) while the smallest implied annual bill belongs to Eastern Maine Electric Coop ($1,030) - a household's bill is price multiplied by consumption, so the two rankings are different lists. 2×2 strategic matrix plotting 8 entities by Price rank percentile (100 = most expensive in state) (X) and Consumption rank percentile (100 = heaviest use) (Y), with a crosshair dividing the plot into four quadrants. Costly rate, heavy useCheaper rate, heavy useCostly rate, light useCheaper rate, light use 050100150 050100150 Price rank percentile (100 = most expensive in state) Consumption rank percentile (100 = heaviest use) Central Maine Power CoVersant PowerEastern Maine Electric CoopHoulton Water CompanyTown of Madison - (ME)EverBright, LLCSunnovaPalmetto Solar, LLC
Each dot is one of the 8 Maine utilities reporting both a residential price and residential sales in 2024, placed by its rank percentile within that group rather than its raw value, so one very large utility cannot flatten the rest. Bubble size follows customers served, rank-scaled so a utility with millions of customers cannot swamp the rest. Central Maine Power Co is highlighted. In Maine the cheapest rate belongs to Houlton Water Company (11.95¢) while the smallest implied annual bill belongs to Eastern Maine Electric Coop ($1,030) - a household's bill is price multiplied by consumption, so the two rankings are different lists.

Territory and usage

Scale and consumption

Central Maine Power Co reported 519.3K residential customers, ranking 1st of 8 utilities in Maine by customers served and covering 77.8% of the state's reported residential customers.

Dividing reported residential sales by customers served gives about 6,686 kWh per customer per year - -17.1% against the Maine median of 8,063 kWh , implying a typical annual bill near $1,567.

State peers

Every utility reporting in Maine

All 8 utilities reporting bundled residential service in Maine, largest first, with Central Maine Power Co marked. The named companies either side of it are the ones a household in this state might otherwise be served by.

Residential utilities in Maine, 2024, ranked by customers served
Utility Ownership Customers Avg ¢/kWh
Central Maine Power Co (this page) Investor Owned 519.3K 23.43¢
Versant Power Investor Owned 130.6K 28.08¢
Eastern Maine Electric Coop Cooperative 10.8K 17.06¢
Houlton Water Company Municipal 3.9K 11.95¢
Town of Madison - (ME) Municipal 2.4K 15.16¢
EverBright, LLC Behind the Meter 504 18.87¢
Sunnova Behind the Meter 80 24.38¢
Palmetto Solar, LLC Behind the Meter 8 41.57¢

For generation mix and price history statewide, see electricity rates in Maine.

Ownership class peers

Investor Owned utilities with similar residential prices

Beyond Maine, these indexable investor owned utilities report the closest residential averages to Central Maine Power Co in the same Form 861 release. Peer sets differ by ownership class and price, not a shared national list.

Same-ownership utilities outside Maine nearest in residential price
Utility State Customers Avg ¢/kWh
Atlantic City Electric Co New Jersey 472.0K 23.41¢
Orange & Rockland Utils Inc New York 170.5K 23.31¢
Public Service Co of NH New Hampshire 279.1K 22.65¢
Green Mountain Power Corp Vermont 226.7K 22.09¢
Duquesne Light Co Pennsylvania 434.2K 21.74¢

FAQ

Common questions about Central Maine Power Co rates

How much does Central Maine Power Co charge per kWh?
Central Maine Power Co reported an average residential price of 23.43¢ per kWh across its bundled residential customers in the 2024 EIA Form 861 release. That is an annual average across all its residential customers, not a rate schedule, so an individual bill depends on the tariff, usage pattern and season.
Is Central Maine Power Co expensive compared with the rest of Maine?
Its average residential price is close to the Maine customer-weighted average of 24.14¢ per kWh, a difference of -2.9%. The state figure is weighted by customers across the 8 utilities reporting residential service in Maine.
What is the average electricity bill for Central Maine Power Co customers?
Dividing reported residential sales by residential customers gives about 6,686 kWh per customer per year. At the reported average price that implies roughly $1,567 a year, or about $131 a month. This is RateWatt's arithmetic on two EIA columns, not a figure EIA publishes.
Who owns Central Maine Power Co?
EIA classifies Central Maine Power Co as Investor Owned, a shareholder-owned company whose retail rates are set through a state regulatory commission. Nationally, the customer-weighted average across Investor Owned utilities was 18.37¢ per kWh in the 2024 Form 861 release.

Limitations

What this page does and does not tell you

  • An average across bundled residential customers for the year, revenue divided by sales, not a rate schedule.
  • Form 861 presence is not evidence of availability at an address or of customer choice.

See our methodology and understanding rate structures .

Source: U.S. Energy Information Administration (EIA), Form 861 annual electric power industry report, 2024 release. Retrieved and formatted by RateWatt.

Disclaimer: This information is provided for informational purposes only and does not constitute professional or financial advice. Data is sourced from the U.S. Energy Information Administration (EIA). Rates change and averages do not describe any individual account. Consult your utility or a qualified professional before making decisions based on this data.

Every figure on RateWatt is rendered directly from official U.S. Energy Information Administration (EIA) data, no number is typed in by an editor. Average price, customers and sales are reported by EIA Form 861 (2024). Per-customer annual usage, the implied annual bill, the customer-weighted state average, the Form 861 US customer-weighted average, the ownership-class customer-weighted average, and every percentage difference are RateWatt's arithmetic on those reported columns, never the separate EIA retail-sales statewide series. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2025.