Minnesota isn't a solar powerhouse — 4.2 peak sun hours per day puts it in the lower third nationally — but it's not a lost cause either. Xcel Energy's Solar*Rewards program adds a meaningful per-kWh payment on top of standard net metering, and Minnesota's net metering rules are among the cleanest in the Midwest. The honest payback range for most homeowners is 10–14 years, which is within the 25-year panel lifespan but requires a longer-term commitment than sunnier states.
Disclaimer: All cost and savings estimates use Lawrence Berkeley National Laboratory Tracking the Sun 2024 cost data and EIA Electric Power Monthly 2025 rate data. Section 25D residential solar credits expired December 31, 2025. Get at least three installer quotes before deciding.
Key Takeaways
- Minnesota averages 4.2 peak sun hours/day — modest production compared to southern states
- Xcel Energy Solar*Rewards program pays ~$0.05/kWh for 10 years — worth ~$3,800 on a 7 kW system over the contract
- At $0.171/kWh (Xcel MN, EIA 2025), electricity savings are moderate; no Minnesota state income tax credit for solar
- Estimated payback: 10–14 years depending on utility and system design
Minnesota Solar Costs in 2026
Minnesota's install costs are near the national average — approximately $2.90–$3.10/watt. A 7 kW system for a typical Twin Cities home costs roughly $20,300–$21,700. With 4.2 peak sun hours per day, that system produces approximately 10,700 kWh annually — well below what the same system would generate in Colorado (5.5 hrs) or Texas (5.7 hrs).
There is no Minnesota state income tax credit for solar. The state's primary structured incentive runs through Xcel Energy's utility program, not the tax code.
| System Size | Cost at $3.00/W | Annual Production (4.2 hrs) | Annual Savings at $0.171/kWh |
|---|---|---|---|
| 6 kW | $18,000 | ~9,200 kWh | ~$1,573 |
| 7 kW | $21,000 | ~10,700 kWh | ~$1,830 |
| 9 kW | $27,000 | ~13,700 kWh | ~$2,343 |
Xcel Energy Solar*Rewards Program
Xcel Energy's Solar*Rewards program is the central incentive for most Minnesota solar buyers. Xcel pays approximately $0.05/kWh of solar production for 10 years — a production-based incentive on top of standard net metering.
On a 7 kW system producing 10,700 kWh/year:
- Annual Solar*Rewards payment: 10,700 × $0.05 = $535/year
- Over 10 years: ~$5,350 total
- Net metering savings (assuming 80% self-consumption): 10,700 × 0.80 × $0.171 = $1,464/year
- Combined first-10-year annual benefit: ~$1,999/year
At $21,000 system cost, that's approximately 10.5 years to payback during the Solar*Rewards period. After year 10, the production incentive disappears but net metering savings continue for the remaining 15 years of panel life — that's nearly free electricity for 15 years post-payback.
According to Lawrence Berkeley National Laboratory's Tracking the Sun 2024, production-based incentives like Solar*Rewards reduce effective system cost by a meaningful margin when factored into net present value calculations.
Minnesota Net Metering Rules
Minnesota requires utilities to offer net metering at the full retail rate for residential systems up to 40 kW — one of the more generous caps in the Midwest. This applies to Xcel Energy, Minnesota Power, and other investor-owned utilities. Municipal utilities and rural electric cooperatives may have different policies.
The combination of full retail net metering plus Solar*Rewards means Xcel Energy customers receive stacked benefits: standard retail credit for self-consumed and exported kWh, plus the $0.05/kWh production payment. It's a genuinely useful combination despite Minnesota's modest sun resource.
What About Non-Xcel Utilities in Minnesota?
Not all Minnesota is served by Xcel. Customers of Minnesota Power (serving Duluth and the Iron Range), Otter Tail Power, or municipal utilities operate without Solar*Rewards.
| Utility | Solar Program | Net Metering | Estimated Payback |
|---|---|---|---|
| Xcel Energy | Solar*Rewards ($0.05/kWh, 10yr) | Full retail, up to 40 kW | ~10–12 years |
| Minnesota Power | No production incentive | Full retail net metering | ~13–16 years |
| Otter Tail Power | No production incentive | Full retail net metering | ~13–16 years |
| Municipal utilities | Varies by city | Varies; most offer retail NM | 12–16 years |
For non-Xcel customers, the math is straightforward net metering at $0.171/kWh — no production incentive. Payback stretches to 13–16 years, which is viable over a 25-year lifespan but requires genuine long-term commitment.
What to Do Next
Confirm your utility and Solar*Rewards enrollment eligibility.
Xcel Energy Solar*Rewards has capacity blocks that can affect incentive rates. Contact Xcel or check the program page before requesting installer quotes — knowing the current rate locks in your expectations and ensures installers quote to the right incentive level.
Account for Minnesota’s snow and low-angle winter sun.
Minnesota’s 4.2 peak sun hours is an annual average. Winter production drops significantly — panels at a proper tilt angle can shed snow effectively, but December and January output will be 40–60% below summer months. Ask installers for monthly production estimates, not just annual totals.
Run your personalized ROI before talking to installers.
Minnesota’s SolarRewards production payment adds a layer to the standard net metering calculation. Enter your Xcel rate, annual usage, and ZIP code to get a payback estimate that includes both net metering savings and the SolarRewards incentive stream.
See your Minnesota payback in one minute
Enter your Xcel rate, annual usage, and ZIP code — get a Solar*Rewards-adjusted estimate with no email required.
Evaluating the full picture? Adding an EV and charging at home during solar hours can substantially shorten Minnesota’s longer payback period by increasing daytime self-consumption. Our Whole-Home Bundle Calculator models the combined solar + EV economics.
Bottom Line
Minnesota solar in 2026 is a moderate-risk, long-duration investment. Xcel Energy customers with Solar*Rewards have the strongest case — 10–12 year payback with a real production incentive stacked on net metering. Non-Xcel customers face 13–16 year paybacks that test the limits of reasonable financial planning without a state income tax credit to close the gap. Minnesota's 25-year panel lifespan means the numbers can still work — you just need honest expectations about the timeline.
Related Guides
- Solar Panel Cost by State in 2026 — See how Minnesota compares to every other state for costs and incentives.
- Is Solar Worth It in 2026? — National payback analysis to put Minnesota’s numbers in context.
- Net Metering Guide 2026 — How Minnesota’s net metering rules compare to other Midwest states.
- Home Solar Panels: The Complete 2026 Guide — Everything you need to know before getting your first solar quote.
