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Minnesota Solar Calculator

Enter your utility and monthly bill — get system size, Xcel Solar*Rewards earnings, Made in Minnesota adder, 30% ITC savings, and 25-year payback for MN homes.

Your solar setup
$USD
kW
Minnesota solar estimate
8 kW system — 20 × 400W panels
Annual solar production8,596 kWh/yr (after snow loss)
Monthly production779 kWh/mo avg
Gross system cost$22,400
Federal ITC (30%)-$6,720
Net cost after ITC$15,680
Xcel Solar*Rewards (10yr)$6,877
Annual electricity savings$1,204/yr
Payback period8.3 years
25-year net savings$48,795
Minnesota incentives included: Property tax exemption (100% of added home value), net metering at retail rate, Xcel Solar*Rewards program. Snow on panels reduces annual output by ~8% — plan for this in your payback calculation.
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How to Use This Calculator

Enter your bill and utility

Enter your average monthly electricity bill in dollars. Select your utility — Xcel Energy, Minnesota Power, or Great River Energy — each with different rates. Xcel Energy customers qualify for the Solar*Rewards program, which pays an additional $0.08/kWh for all solar production over 10 years, significantly improving payback. If you use Minnesota-made panels, enable the Made in Minnesota toggle to add $0.015/kWh on top.

Set your system size

Enter your desired solar system size in kW. Most Minnesota homes need 6–10 kW. Minneapolis and St. Paul homes average 8 kW; Duluth homes often need only 4–6 kW due to lower electricity usage and significant snow loss (up to 15% in deep winter). If you prefer no rooftop installation, enable the Community Solar toggle — you subscribe to a shared solar garden and save 10–12% on your bill with no equipment cost.

Read the results

The calculator shows annual production after an 8% snow loss adjustment, gross and net cost after the 30% federal ITC, Xcel Solar*Rewards 10-year earnings, Made in Minnesota adder, annual bill savings, payback period, and 25-year net savings. Minnesota's property tax exemption means solar adds zero to your property tax bill.

The Formula

Annual Production = System kW × 4.0 PSH × 365 days × 0.80 efficiency × 0.92 (snow) Gross Cost = System kW × 1,000 × $2.80/W ITC Credit = Gross Cost × 30% Net Cost = Gross Cost − ITC Credit Annual Savings = kWh offset × Utility rate/kWh Xcel Solar*Rewards = Annual kWh × $0.08/kWh (10 years) Payback = Net Cost ÷ (Annual Savings + Annual Rewards)

Minnesota averages 4.0 peak sun hours (PSH) per day — less than the Southwest but comparable to the Midwest. The 8% snow loss factor reflects average annual shading from snow cover; Duluth sees higher losses in January and February. The $2.80/W installed cost is the 2026 Minnesota average for a grid-tied system; battery storage adds ~$10,000 for a 10 kWh system. Electricity price escalation of 3%/year is factored into the 25-year savings model.

Example

Sarah — Minneapolis home, 8 kW Xcel Energy

Sarah pays $140/month to Xcel Energy for her Minneapolis home. She installs an 8 kW solar system using Made in Minnesota panels.

Monthly bill$140/mo
UtilityXcel Energy ($0.14/kWh)
System size8 kW (20 × 400W panels)
BatteryNo
MN panelsYes

Result

Annual production~8,467 kWh/yr (after snow)
Gross system cost$22,400
Federal ITC (30%)-$6,720
Net cost$15,680
Xcel Solar*Rewards (10yr)~$6,774
Made in MN adder (10yr)~$1,270
Annual savings~$1,185/yr
Payback~8.5 years
25-yr net savings~$22,000

Minnesota's combination of Xcel Solar*Rewards, 30% federal ITC, property tax exemption, and retail-rate net metering makes solar viable despite the state's moderate sunshine. Xcel customers receive the best incentives in the state.

FAQ

Xcel Energy's Solar*Rewards program pays residential solar customers $0.08/kWh for every kWh their system produces — not just the excess exported to the grid — for 10 years. This is in addition to net metering credits. A typical 8 kW Minneapolis system produces ~8,500 kWh/year, earning ~$680/year or $6,800 over 10 years from Solar*Rewards alone. The program has limited annual enrollment capacity; apply early each year. The Made in Minnesota adder adds another $0.015/kWh if you use panels manufactured in Minnesota.
Yes — Minnesota has mandatory net metering for all utilities under Minn. Stat. § 216B.164. Excess solar exported to the grid is credited at the full retail electricity rate. Credits roll over month-to-month and are reconciled annually. Unlike some states, Minnesota's net metering policy has remained stable and is legally protected. Xcel Energy, Minnesota Power, and Great River Energy all offer retail-rate net metering for residential systems up to 40 kW.
Snow is the main Minnesota-specific solar consideration. A properly tilted roof (30–40°) sheds snow quickly and the dark panels accelerate melting. Annual snow loss averages 8% across most of Minnesota; Duluth and northern Minnesota can see 12–15% in severe winters. December and January see the most impact. However, Minnesota's long summer days (up to 15 hours of daylight) compensate — June and July production is among the highest in the country for northern latitudes. Annual output is still economically viable.
Minnesota's Community Solar Garden program (launched 2014) allows renters, condo owners, or homeowners who can't install rooftop panels to subscribe to a shared solar array. You receive a bill credit for your share of production — typically saving 10–12% on your electricity bill. There is no upfront cost, no equipment to maintain, and no installation required. Xcel Energy's program is the largest. Waiting lists exist in some areas; compare providers at MnSEIA.org. Community solar is ideal for apartments, historic homes, or heavily shaded properties.
Yes — Minnesota ranks in the top 20 US states for solar value when accounting for all incentives. The combination of 30% federal ITC, Xcel Solar*Rewards ($0.08/kWh for 10yr), retail-rate net metering, 100% property tax exemption, and moderate installed costs ($2.80/W) produces payback periods of 7–10 years for most homeowners. The 25-year system produces 15–20 years of free electricity. Minnesota Power and Great River Energy customers see longer paybacks due to lower rates, but still benefit economically, especially with rate escalation over time.

Related Calculators

📈 Solar Tax Credit Calculator
Calculate your exact 30% federal ITC savings.
⏱ Solar Payback Calculator
Detailed payback analysis with rate escalation.
⚡ Net Metering Calculator
Estimate export credits under net metering policy.
🏠 Community Solar Calculator
Savings from subscribing to a community solar garden.

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