Alaska solar calculator
Size a Alaska home solar system from your electric bill — kW, panel count, roof area, true cost with no federal credit for 2026 installs, and payback.
Quick answer: At $0.282/kWh and 3.0 peak sun hours, a $200/month bill needs about 10.25 kW — 25 × 410 W panels covering ~50 m². Gross cost is ~$34,645 with no federal credit for systems installed after 2025, offsetting $2,400 a year for a ~14.4 year payback.
Your details
Ballpark, not gospel. Sized at 78% real-world output with the Alaska sun-hour average — confirm shading, roof angle and your co-op's netting and surplus-credit terms with a local installer before buying. Alaska's 3.0 average hides huge seasonal swings (long summer days, near-dark winter), and co-ops settle surplus monthly with no annual banking — size the system for the winter baseline and expect summer surplus to be credited at avoided cost, not retail.
The 30% credit ended — what changed
The residential clean energy credit (26 U.S.C. § 25D) gave homeowners a 30% credit on solar installed from 2022 through 2025. The July 2025 tax law ended it: no credit is available for property placed in service after December 31, 2025. That is why every figure on this page is ~30% higher than pre-2026 guides show. If your system went live by the end of 2025, tick the box above to see the credit applied; leased systems may still benefit because the leasing company claims the commercial credit. Source: IRS — Residential Clean Energy Credit.
Typical Alaska system sizes by monthly bill
| Monthly bill | System size | Panels (410 W) | Net cost (no 2026 federal credit) | Payback |
|---|---|---|---|---|
| $100 | 5.33 kW | 13 | $18,015 | 15.0 years |
| $200 | 10.25 kW | 25 | $34,645 | 14.4 years |
| $300 | 15.17 kW | 37 | $51,275 | 14.2 years |
Computed at $0.282/kWh, 3.0 peak sun hours and $3.38/W installed, with no federal credit for 2026 installs. Run your exact bill above.
Solar in Alaska: the details
Solar cost in Alaska
Solar is comparatively expensive in Alaska — and market data is thinner than in the lower 48, so treat these as indicative figures. Reported installs land around $3.38 per watt, in a reported range of roughly $2.89–$3.87/W — above the $2.50–$3.50/W national band. A typical ~10 kW system grosses around $33,800, with no federal credit for 2026 homeowner installs.
What moves the number: remoteness and shipping, snow-rated racking, and small installer crews. Get multiple quotes — and remember the 3.0 sun-hour average is an annual figure; winter production is a fraction of summer's.
Export rules: getting paid for surplus power
Under Regulatory Commission of Alaska rules, regulated co-ops must net solar against your consumption at the full retail rate each month for systems up to 25 kW. But any monthly surplus is credited only at the co-op's avoided-cost rate, and there is no annual banking.
Surplus credit rates reset quarterly and vary by co-op, so check your co-op's current rate. Combined with the extreme seasonality — the 3.0 average hides summer abundance and winter scarcity — the rule is: size to the winter load, not the summer sun, because oversized summer output gets credited at avoided cost.
Practical takeaway: conservative sizing beats maximal sizing in Alaska. A smaller system you fully self-consume each month outperforms a big one exporting summer surplus at pennies.
Alaska solar incentives
No major statewide solar incentive was found in 2026 sources — no state income tax credit, rebate, or equipment exemption. Federal options for 2026 homeowner installs are gone with the end of the 30% credit (see above).
Is solar worth it in Alaska?
Verdict: marginal, and sizing is everything. The calculator puts a $200 bill at a ~14.4-year payback on an indicative $3.38/W install — and the 3.0 sun-hour average hides near-zero winter production. Monthly netting with no annual banking means oversized summer systems get surplus credited at avoided cost. Size to the winter load, not the summer sun.
Questions people actually ask
Straight answers, no fluff. Then run your own numbers above.
How many solar panels do I need in Alaska?
It follows your bill. At the Alaska average of $0.282/kWh and 3.0 peak sun hours, a $200/month bill needs about a 10.25 kW system — roughly 25 × 410 W panels covering ~50 m² of roof.
What is the average cost of solar panels in Alaska in 2026?
Market data for Alaska is thinner than in the lower 48, so treat these as indicative. Reported installs land roughly $2.89–$3.87/W, around $3.38/W mid-range, above the national $2.50–$3.50/W band. A typical ~10 kW system grosses around $33,800, with no federal credit for 2026 homeowner installs.
How does net metering work in Alaska?
Sort of — it's co-op netting, not statewide net metering. Under Regulatory Commission of Alaska rules, regulated co-ops net solar against your consumption at the full retail rate each month for systems up to 25 kW. Monthly surplus is credited at the co-op's avoided-cost rate (reset quarterly), and there's no annual banking — so size conservatively.
Does Alaska offer any solar tax credit or rebate?
No major statewide solar incentive was found in 2026 sources — no state income tax credit, rebate, or equipment exemption.
Is the 30% federal solar tax credit still available?
Not for homeowner purchases anymore. The residential clean energy credit (26 U.S.C. § 25D) is not available for property placed in service after December 31, 2025, under the July 2025 tax law (Public Law 119-21). Systems installed by the end of 2025 can still claim 30%, and leased systems may still benefit because the leasing company claims the commercial credit instead. (Source: IRS — Residential Clean Energy Credit.)
Is solar worth it in Alaska?
Verdict: marginal, and sizing is everything. The calculator puts a $200 bill at a ~14.4-year payback on an indicative $3.38/W install — and the 3.0 sun-hour average hides near-zero winter production. Monthly netting with no annual banking means oversized summer systems get surplus credited at avoided cost. Size to the winter load, not the summer sun.
Figures last checked October 2026. Sources: residential rate and sun-hour averages via kilowattkit.com and unboundsolar.com's US sun-hours map, EIA Electric Power Monthly, NREL PVWatts/NSRDB, DSIRE, Regulatory Commission of Alaska; IRS — Residential Clean Energy Credit.
More US solar calculators
Compare other states: Texas, Florida, California, Arizona, North Carolina, Alabama, Alaska, Arkansas, Colorado, Connecticut, Delaware, Georgia, Hawaii, Idaho. And the national US solar calculator for country averages.
Comparing quotes? The solar cost calculator breaks down cost per watt and the solar ROI calculator maps your payback year by year. Going deeper: installation cost guide, how net metering works, how much you can save with solar and the solar batteries guide.