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Get a Free QuoteFull Retail Rate credits at $0.2395/kWh · Maine · Residential cap 25kW
$0.24/kWh
Credit Rate
25 kW
Residential Cap
$11.88
Min Monthly Bill
annual
Credit Rollover
Last updated: 2025-01-01
Central Maine Power (ME) customers earn $0.2395/kWh per kWh through full retail rate net metering credits — dollar-for-dollar against your retail rate. Credits roll over and expire annually with anniversary date annual true-up (excess at avoided cost). The typical Central Maine Power customer with a 8kW system saves $2,184.00 per year.
Net metering lets you earn credits for surplus solar energy sent back to the grid. Here is how it works with Central Maine Power.
Solar panels are installed on your roof or property and wired to an inverter.
Your system is interconnected with the utility grid through a bidirectional meter.
Panels produce electricity throughout the day, powering your home first.
A smart meter measures electricity flowing both to and from the grid in real time.
Excess energy sent to the grid earns credits that offset your future electric bills.
All current residential rate schedules relevant to net-metered solar customers. Understanding your rate schedule is critical for accurately estimating savings.
| Plan Name | Rate | Fixed Charge | TOU Available | Peak Rate | Off-Peak Rate |
|---|---|---|---|---|---|
| A Residential | $0.2395/kWh | $11.88/mo | No | — | — |
Based on a typical Central Maine Power household using 900 kWh/month with a 8kW system generating 760 kWh/month.
Estimated Annual Savings
$2,184.00
$182.00/month average
Your credits depend on system size, utility, and local rates.
Calculate My SavingsResidential Cap
25 kW AC
Commercial Cap
5 MW AC
Interconnection Fee
Free ($0)
Application Timeline
3-5 weeks
Permit Required
Yes, local building permit required
Inspection
Utility inspection required before PTO
Meter Type
Bidirectional smart meter
Minimum Monthly Bill
$11.88
Maine PUC transitioned from legacy net metering to net energy billing framework (functionally similar for residential)
CMP standard offer supply rates updated for 2026
Avangrid (parent company) facing ongoing regulatory scrutiny and customer satisfaction concerns
Maine community solar program expanding alongside behind-the-meter installations
Some third-party sources may still display outdated net metering data for Central Maine Power. The information on this page is sourced directly from utility filings and verified as of 2025-01-01.
What Central Maine Power customers need to know about net metering in 2026.
Central Maine Power credits solar exports at 100% of the retail rate ($0.2395/kWh) under the net energy billing (NEB) framework.
CMP serves approximately 640,000 customers across southern and central Maine, covering about 97% of the state geographically.
Maine uses net energy billing (NEB) rather than traditional net metering terminology, but the residential program functions similarly with full retail rate credits.
At annual true-up, excess credits are compensated at the avoided cost rate (~$0.05/kWh) rather than being fully forfeited.
CMP has experienced customer service challenges, which has led some Mainers to explore community solar alternatives.
No interconnection fee is charged, but the 3-5 week timeline can be longer during peak installation season.
Maine exempts solar equipment from sales tax, providing approximately 5.5% savings on system costs.
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Common questions about Central Maine Power net metering.
Primary Source
CMP Rate A Tariff / Net Energy Billing ScheduleLast Verified
2025-01-01
Methodology
Rate data and policy details are sourced directly from Central Maine Power's published tariff schedules and interconnection standards. We verify this data monthly against utility filings and update the page within 48 hours of any confirmed policy change.
See how much you can save with Central Maine Power net metering credits at $0.2395/kWh. Our Maine solar experts will design a system optimized for your utility rate plan.