Augusta is a good solar town for reasons that have little to do with the weather forecast and everything to do with your electric bill. Maine power is expensive, the state capital sits squarely in Central Maine Power territory, and Maine’s net energy billing pays you a full retail credit for every kilowatt-hour your roof sends back. The catch here is local: colder winters and steep older roofs change how you size a system, and Maine’s incentive picture is narrower than the internet will tell you. This page lays out what solar actually produces and costs in Augusta, how CMP applies your net-billing credits, which Maine benefits are real, and the ones that are not, then you can check your own address in about a minute.
Augusta solar, by the numbers (as of July 2026)
According to MySolarFY’s own analysis (as of July 2026), a typical 6 kW rooftop system in Augusta produces about 7,580 kWh a year (NREL PVWatts, ZIP 04330), enough to offset roughly $2,150 a year on a Central Maine Power bill at Maine’s average residential rate of 28.32 cents per kWh (EIA, March 2026), which puts a cash system’s simple payback in the range of about 8 to 10 years.
- Your utility is Central Maine Power. CMP serves Augusta and Kennebec County and is headquartered right in the city, so an Augusta homeowner is a CMP customer, not a Versant one (Maine PUC utility map, as of July 2026).
- Maine power is expensive, which is what makes solar pay. Maine residential electricity averages about 28.32 cents per kWh (EIA, as of March 2026), well above the national average.
- A typical Augusta roof makes about 7,580 kWh a year from a 6 kW system (NREL PVWatts, ZIP 04330, as of July 2026), even at Maine’s northern latitude.
- Net energy billing credits you at the full retail rate, 1 for 1. Residential customers use Maine’s kWh Credit Program; unused credits expire after 12 months (Maine PUC net energy billing, as of July 2026).
- The 30% federal homeowner credit (Section 25D) ended after December 31, 2025 (IRS, as of January 2026), so an Augusta homeowner who buys solar in 2026 cannot claim it.
Key Augusta solar numbers, dated
- Maine residential electricity rate: about 28.32 cents per kWh, as of March 2026 (EIA).
- Typical production, 6 kW system in Augusta (ZIP 04330): about 7,580 kWh per year, as of July 2026 (NREL PVWatts).
- Estimated year-one bill offset at that rate: roughly $2,150, MySolarFY analysis as of July 2026.
- Estimated simple payback for a cash system: about 8 to 10 years, MySolarFY analysis as of July 2026.
- Maine property-tax exemption on a qualifying solar system: 100% of the added value, as of 2026 (Maine Revenue Services).
Why Augusta’s electricity rate makes solar worth it
The reason solar pays in Augusta is the price of the power it replaces. Maine residential electricity averages about 28.32 cents per kWh (EIA, as of March 2026), one of the higher rates in the country, so every kilowatt-hour your roof makes offsets an expensive one you would otherwise buy from CMP. The exact cents on your own statement move with the standard-offer supply rate and CMP’s delivery charge, both of which reset on a schedule, so read the supply and delivery lines on your CMP bill for your current number. For the live CMP rate and the full net-billing rules, see our Central Maine Power solar guide.
Your production is what turns that high rate into savings. A 6 kW system in Augusta produces about 7,580 kWh a year (NREL PVWatts, ZIP 04330, as of July 2026), which is strong output for a northern-latitude city and enough to cover a large share of a normal home’s use. Output depends on your roof pitch, shading, and orientation, and Augusta’s older tree-lined streets add shading to check, so estimate your specific roof with the free PVWatts tool rather than a generic figure. To see exactly how we turn the rate and production into the dollar figures below, read how we calculate these numbers.
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Is CMP or Versant your electric utility in Augusta?
In Augusta the answer is simple: Central Maine Power. Maine has two investor-owned transmission-and-distribution utilities, and they do not overlap. CMP covers central and southern Maine, including Augusta and the rest of Kennebec County, while Versant Power serves eastern, coastal, and northern Maine (Maine PUC transmission and distribution utility map, as of July 2026). So a homeowner anywhere in Augusta is a CMP customer, and your solar interconnection and net-billing credits run through CMP. As a local footnote, CMP is not just your utility here, it is your neighbor: the company is headquartered on Edison Drive in Augusta.
One precise point that trips people up: CMP applies your net-billing credits, but it does not set the rules. Maine’s net energy billing program is established and administered by the Maine Public Utilities Commission, and CMP is the utility that applies those credits to your account each month (Maine PUC net energy billing, as of July 2026). That distinction matters because the program terms, not your installer’s pitch, decide what a credit is worth.
How CMP applies Maine net energy billing
Net energy billing is the engine of your savings, and in Maine a home system earns a full retail kilowatt-hour credit. When your panels make more than you are using, the extra flows to the grid and you earn a credit for each exported kilowatt-hour, applied one for one against the kilowatt-hours you later pull from CMP at the retail rate (Maine Public Utilities Commission, as of July 2026). Maine actually runs two net-billing tracks, but for a rooftop home only one is open to you: the kWh Credit Program. The dollar-denominated Tariff Rate track is limited to non-residential and community projects, so a standard Augusta home uses the kWh credit (Maine Department of Energy Resources, as of 2026). For the full statewide mechanics, see our Maine net energy billing guide.
Two details decide how much of that credit you actually keep. First, unused credits expire after 12 months on a rolling, oldest-first basis, and Maine does not cut you a check for a leftover balance, so a credit banked in June must be used by the following June (Maine Department of Energy Resources, as of 2026). That is an argument for sizing your system close to your annual usage rather than far above it. Second, the kilowatt-hour credit offsets the usage charges on your bill, but it does not erase CMP’s fixed monthly customer charge, which you keep paying in cash. That is the honest answer to “why do I still get a bill with solar,” covered below.
| What happens on your bill | How Maine net energy billing handles it |
|---|---|
| Your panels make more than you use in a month | The extra kilowatt-hours become 1-for-1 credits at CMP’s retail rate |
| Credits you do not use this month | Roll forward and reduce a future month’s usage charge |
| Credits still unused after 12 months | Expire on an oldest-first basis, with no cash payout |
| CMP’s fixed monthly customer charge | Still billed in cash, credits do not erase it |
What solar actually costs and pays back in Augusta
Below is our own estimate, computed from the production and rate figures above against a range of typical installed prices, so you can see the math rather than a marketing number. It assumes a 6 kW cash system that offsets grid power at Maine’s average residential rate. It is an estimate for planning, not a quote, and it excludes financing costs, future rate increases (which shorten payback), and slow panel degradation (which lengthens it).
| Installed cost (6 kW, cash) | Cost per watt | Estimated year-one bill offset | Estimated simple payback |
|---|---|---|---|
| $16,500 | $2.75 | about $2,150 | about 7.7 years |
| $18,000 | $3.00 | about $2,150 | about 8.4 years |
| $21,000 | $3.50 | about $2,150 | about 9.8 years |
MySolarFY estimate, as of July 2026. Assumes a 6 kW system producing about 7,580 kWh per year (NREL PVWatts, ZIP 04330) fully offsetting grid power at Maine’s 28.32 cents per kWh average residential rate (EIA, March 2026). Simple payback = installed cost divided by year-one bill offset. Your quote, roof, and usage will differ.
The takeaway is that at Maine’s rate a well-placed Augusta system tends to pay for itself somewhere in the high single digits to low double digits of years, then keeps producing for a couple of decades after that. Because the federal homeowner credit is gone in 2026, the payback above is not shortened by a 30% tax credit the way it would have been a year ago, which makes the local rate and net-billing credit the whole story now.
Which Maine solar incentives are real, and which are not
Maine’s homeowner solar benefits are narrower than most search results suggest, so it helps to separate what is real from what is a copy-paste error. The genuinely valuable state benefit, on top of net billing, is the property-tax exemption. A qualifying residential solar system is 100% exempt from local property tax on the value it adds to your home, so going solar does not raise your assessment (Maine Revenue Services, Property Tax Bulletin No. 29; DSIRE, as of 2026). One catch worth knowing: you generally have to file the exemption application with your local assessor by April 1 of the first year you claim it, so it is not fully automatic. These statewide rules are the same across CMP territory, which is why we keep the full detail on the Maine solar guide rather than repeating it here.
What Maine does not have is just as important to plan around. There is no Maine state income-tax credit for residential solar, and Efficiency Maine, the state’s rebate agency, does not offer a rebate for a standard grid-tied residential solar array (its rebates go to heat pumps, weatherization, and similar measures) (DSIRE Maine incentives, as of 2026). And despite what several installer pages claim, Maine has no sales-tax exemption on residential solar equipment; that exemption only ever applied to large battery storage systems for a limited window, not to home solar panels, so budget for sales tax on your equipment. If a quote leans on a “Maine solar tax credit” or a “solar sales-tax break,” treat it as a red flag and ask for the statute.
| Maine benefit | Real in 2026? | Note |
|---|---|---|
| Net energy billing (kWh credit) | Yes | 1-for-1 retail credit; 12-month expiry; residential kWh track only |
| Property-tax exemption on added value | Yes | 100% exempt; file with your local assessor by April 1 |
| State income-tax credit for solar | No | Maine has never had one |
| Efficiency Maine rebate for solar PV | No | Rebates cover heat pumps and weatherization, not standard PV |
| Sales-tax exemption on solar equipment | No | Common blog error; verified false against Maine Revenue Services |
| Federal 30% homeowner credit (25D) | No | Ended for systems placed in service after 12/31/2025 |
What the federal tax-credit change means for Augusta
The federal homeowner credit is gone, but Maine’s benefits are not. The 30% federal Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025 under the One Big Beautiful Bill Act, so an Augusta homeowner who buys solar with cash or a loan in 2026 cannot claim it (IRS Residential Clean Energy Credit; SEIA, as of 2026). You will still find installer pages and search results implying the 30% credit runs for years; the accurate answer for 2026 is that the homeowner version already ended. Net energy billing and the property-tax exemption were not affected, and at Maine’s high rate the bill offset alone carries the payback. For the full timeline, see our explainer on what the federal solar tax credit change means.
One federal exception exists, and it is not yours to claim. A separate commercial credit, Section 48E, is claimed by the business that owns a leased or power-purchase-agreement system, not by the homeowner (IRS Clean Electricity Investment Credit, as of 2026). On a leased system you do not file for a federal credit yourself; the company that owns the panels does. The 25D homeowner credit, by contrast, ended after December 31, 2025. MySolarFY does not provide tax advice, so confirm your situation with a tax professional.
Going solar on a cold-climate Augusta roof
Augusta’s inland climate and older housing stock are what make its solar projects distinct from coastal Maine. Winters are colder and snowier here than on the coast, and a lot of the city’s homes date to the early 1900s with steep, pitched roofs. That is mostly good news for solar: a steep pitch sheds snow quickly and sits at a strong winter sun angle, so panels spend less time buried than people expect. Your annual production figure already reflects Maine’s seasons, but output does dip in the short, snowy days of December and January and rebounds hard in spring, so judge a system on its yearly total, not a mid-winter week.
Note: Two Augusta-specific checks are worth raising with your installer early. First, an older home may have a smaller electrical service panel that needs an upgrade to carry a modern system, especially if you also add a battery for winter resilience. Second, Augusta’s city code includes historic-district review provisions, so if your home sits in a designated historic area, exterior solar may need local review before it goes up (Augusta City Code, eCode360, as of 2026). No special statewide solar permit fee or timeline is published, so ask your installer to confirm the current Augusta building-permit process for your address.
| Augusta roof or site factor | What to plan for |
|---|---|
| Steep, pitched 1900s roof | Good for shedding snow and winter sun angle; confirm structural condition and age |
| Cold-climate winter production dip | Judge the system on its annual total; spring and summer carry the year |
| Older electrical service panel | May need an upgrade for a modern system, especially with a battery |
| Historic-district home | Possible local review of exterior panels under Augusta’s city code |
| Mature street-tree shading | A shade study; a few high-efficiency panels can beat a larger shaded array |
Paying for solar in Augusta: cash, loan, lease, or PPA
There is no single right way to pay for solar. The best fit depends on whether you want to own the system and keep the Maine property-tax exemption yourself, or avoid an up-front cost. A lease or PPA can mean no up-front cost for eligible homeowners, but it is a long-term agreement with monthly payments, not free solar, and the company that owns the panels is the one that captures any owner-side benefit. To weigh the long-run numbers, start with our Maine solar guide, and if you are comparing nearby markets, see solar in Portland, Maine.
| Path | Up-front cost | Who owns the system | Best when |
|---|---|---|---|
| Cash purchase | Full system cost | You | You want the fastest payback and the most lifetime savings |
| Solar loan | Little to none, financed | You | You want ownership without paying cash up front |
| Lease or PPA | $0-up-front where eligible | A third-party company | You prefer no up-front cost and a fixed monthly power price |
How to choose a solar installer in Augusta
Augusta homeowners can work with local Maine companies or regional installers, and the healthy competition is good for your price and service. Rather than chasing a “best installer” list, screen any company against objective criteria:
- NABCEP certification, the industry’s professional standard for solar installers.
- A valid Maine electrical license and the proper local permitting for your town.
- A clear workmanship and equipment warranty in writing.
- Real experience with CMP interconnection and Maine net energy billing, plus Augusta’s permitting and any historic-district review, so your paperwork and Permission to Operate go smoothly.
- A written production estimate and a transparent quote that does not lean on a “Maine solar tax credit” or a “federal 30% credit” that no longer applies to a 2026 homeowner purchase.
MySolarFY matches you with licensed installers that serve your area so you can compare real local quotes side by side, with no obligation.
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Frequently asked questions
Is solar worth it in Augusta, Maine in 2026? For most owner-occupied Augusta homes with decent sun, yes. Maine residential electricity averages about 28.32 cents per kWh (EIA, as of March 2026), among the higher rates in the country, so every kilowatt-hour a 6 kW roof makes, about 7,580 kWh a year here (NREL PVWatts, as of July 2026), offsets an expensive grid one. Net energy billing credits that export at the full retail rate. Savings are not guaranteed and depend on your roof, usage, and how you pay, but the high local rate is what makes Augusta a strong solar market even though the federal homeowner credit (Section 25D) ended after December 31, 2025.
Who is my electric utility for solar in Augusta? Central Maine Power. Augusta and the rest of Kennebec County are in CMP’s central-Maine territory, and Maine’s two utilities do not overlap, so your interconnection and net-billing credits run through CMP, not Versant Power, which serves eastern and northern Maine (Maine PUC utility map, as of July 2026). CMP is also headquartered in Augusta. The Maine Public Utilities Commission sets the net-billing rules, and CMP applies the credits to your monthly bill.
How does net energy billing work with CMP? When your panels produce more than you use, the extra flows to the grid and CMP credits your account one kilowatt-hour for one, applied against the power you later draw at the retail rate (Maine Public Utilities Commission, as of July 2026). Residential customers use Maine’s kWh Credit Program, the only track open to homes. Unused credits roll forward but expire after 12 months with no cash payout, so it is smart to size your system close to your yearly usage rather than far above it.
Does Maine have a state solar tax credit or rebate? No. Maine has no state income-tax credit for residential solar, and Efficiency Maine does not rebate a standard grid-tied home solar array (DSIRE Maine incentives, as of 2026). What Maine does offer is a 100% property-tax exemption on the value a qualifying system adds to your home, which you file for with your local assessor (Maine Revenue Services Bulletin No. 29, as of 2026). Maine also has no sales-tax exemption on solar equipment, despite what some installer pages claim, so plan for sales tax.
Why do I still get an electric bill after going solar? Two reasons. First, Maine’s kilowatt-hour credit offsets your usage charges but not CMP’s fixed monthly customer charge, which you keep paying in cash (Maine Public Utilities Commission, as of July 2026). Second, in the short, snowy days of a central-Maine winter your panels make less than you use, so you draw from the grid and lean on credits banked in sunnier months. A well-sized system zeroes out your usage charges over a full year, but a fixed connection charge and normal seasonal swings mean the bill rarely reads exactly zero.
What is the new solar law in Maine? Maine recently added rules that let small “plug-in” solar (a panel that plugs into an outlet, rather than a wired rooftop system) skip the usual interconnection approval, so a utility cannot require sign-off or fees for it. The trade-off is that plug-in solar is not eligible for net energy billing, which is where a rooftop system earns its credits (Natural Resources Council of Maine, as of 2026). For a standard rooftop system in Augusta, the net-billing rules described above are what apply, and your installer handles the CMP interconnection.
Can I get solar with no up-front cost in Augusta? Some homeowners can, through a lease or power-purchase agreement where eligible, which can mean no out-of-pocket cost at installation in exchange for monthly payments. This is not free solar; it is a long-term agreement, often 20 to 25 years, and total payments may exceed the cost of a cash purchase, sometimes with an annual price escalator. On a lease or PPA the third-party owner, not you, owns the system and any owner-side benefit, while your benefit is a lower or fixed power price. If you want to own the system and keep the property-tax exemption yourself, a cash purchase or solar loan is the path that keeps them. Check what you qualify for before deciding.
Reviewed by the SolarFY Editorial Team. Updated for July 2026. Figures are dated to their sources and change over time; verify current rates and program terms before you sign.
Disclaimer: MySolarFY is a free service that matches homeowners with licensed solar installers. We are not an installer, a lender, or a government program, and this page is not tax or financial advice. Solar savings are estimates that depend on your roof, usage, system, and how you pay. A lease or PPA is a long-term agreement, often 20 to 25 years, and its total payments may exceed a cash purchase and may include an annual price escalator. The federal residential solar tax credit (Section 25D) ended for systems placed in service after December 31, 2025, so a 2026 homeowner purchase does not qualify for it. Consult a licensed installer and a tax professional about your specific situation.