Are Solar Panels Worth It in Minnesota? Cold Is Good, Snow Is Manageable, and the Incentives Help

Minnesota is not the first state that comes to mind for solar. The winters are long, the days are short, and snow covers rooftops for weeks. But Minnesota has above-average electricity rates, a strong net metering policy, and an incentive program through Xcel Energy that pays solar owners for every kilowatt-hour they generate. The combination produces a payback period of 9 to 12 years and net savings of $12,000 to $20,000 over 25 years for a typical homeowner.

Here is the math, how Minnesota’s cold climate affects panel performance, and why solar works better in the North than most people assume.

What Solar Panels Cost in Minnesota

Solar in Minnesota costs approximately $2.90 to $3.30 per watt before incentives. A typical 7-kilowatt residential system costs $20,000 to $23,000. The installer market is concentrated in the Twin Cities metro, with fewer options in greater Minnesota, which can push prices toward the higher end in rural areas.

Minnesota prices are slightly above the national average due to higher labor costs, the need for racking systems that handle snow loads, and a somewhat less competitive installer market outside the Twin Cities. The federal tax credit covers 30 percent of the total system cost with no cap. On a $21,500 system, the federal credit is $6,450.

Minnesota Solar Incentives

Xcel Energy’s Solar*Rewards program is the primary state-level incentive for Minnesota solar owners. The program pays a performance-based incentive for every kilowatt-hour the system generates, typically $0.06 to $0.08 per kilowatt-hour, for 10 years. The incentive rate is set annually and varies based on program subscription levels. A 7-kilowatt system generating 9,000 kilowatt-hours per year at $0.07 per kilowatt-hour receives $630 per year for 10 years, totaling $6,300 over the incentive period.

Solar*Rewards is available only to Xcel Energy customers, which covers the Twin Cities metro and surrounding areas. Applications are accepted on a first-come basis within annual program blocks. The program blocks fill quickly, typically within days of opening. If you are considering solar in Xcel territory, timing your application to the program block opening is critical.

Minnesota offers a property tax exemption for solar systems. The added value is excluded from property tax assessment for the life of the system. The state previously offered a solar tax credit through the Made in Minnesota program, which required the use of Minnesota-manufactured solar panels. That program has ended and is no longer available.

Rural electric cooperatives and municipal utilities in greater Minnesota set their own incentive programs. Some offer net metering and rebates comparable to Xcel’s. Others offer nothing beyond the federal tax credit. Check with your specific utility before getting quotes. For homeowners in cooperative or municipal territory without incentives, the economics are significantly less favorable.

How Much Power Minnesota Solar Panels Generate

Minnesota receives 4.0 to 4.5 peak sun hours per day averaged across the year. The Twin Cities and southern Minnesota receive approximately 4.5 hours. The Iron Range and northern Minnesota receive approximately 4.0 hours. This is comparable to Delaware and Maryland but with greater seasonal variation.

A 7-kilowatt system in the Twin Cities generates approximately 9,000 to 10,000 kilowatt-hours per year. June and July production is high, driven by long summer days that can exceed 15 hours of daylight. December and January production is low, at 30 to 40 percent of summer output, due to short days, low sun angle, and snow cover. The annual production estimate accounts for this seasonal variation.

Panels operate more efficiently in cold temperatures. A panel at 20 degrees Fahrenheit produces 5 to 10 percent more power from the same sunlight than a panel at 100 degrees. Minnesota’s cool spring and fall temperatures boost production during those seasons. The cold is an advantage, not a disadvantage, for panel efficiency. The limiting factor is daylight hours and snow, not temperature.

Snow and Solar Panels in Minnesota

Snow that covers panels blocks all production for as long as it remains. The annual production loss from snow cover in Minnesota is typically 3 to 5 percent, which is factored into production estimates. Panels are dark, slick, and angled, which causes snow to melt and slide off faster than it does on the surrounding roof. Light snow melts within hours of the sun emerging after a storm. Heavy snow from a multi-day blizzard may cover panels for several days.

Ground-mount systems can be manually cleared of snow with a soft roof rake or brush designed for solar panels. Do not use a standard snow rake with a metal edge, which scratches the panel surface. Roof-mounted systems should not be accessed in winter for safety reasons. The snow will melt and slide off on its own.

Installers in Minnesota typically mount panels at a steeper angle than in southern states, often 35 to 40 degrees rather than 25 to 30 degrees. The steeper angle improves snow shedding and increases winter production by orienting the panels more directly toward the low winter sun.

How Much You Save on Electricity

Minnesota residential electricity rates average 13 to 14 cents per kilowatt-hour. Xcel Energy serves the majority of Minnesota residents and offers full retail rate net metering for systems up to 40 kilowatts. Excess generation is credited at the retail rate and rolled over month to month. At the end of each calendar year, remaining credits are paid out at the avoided cost rate. Size your system to match your annual usage to maximize the value of net metering.

A 7-kilowatt system generating 9,500 kilowatt-hours per year at 13.5 cents saves approximately $1,280 per year in electricity. The Solar*Rewards incentive adds approximately $630 per year for the first 10 years. Combined annual savings during the incentive period total approximately $1,910. After the incentive expires at year 10, savings drop to approximately $1,280 per year.

Against a net system cost of $15,000 after the federal credit, the simple payback period is approximately 8 years when the Solar*Rewards incentive is included. Without the incentive, the payback extends to approximately 12 years. The Xcel Solar*Rewards program is the difference between a good solar investment and a marginal one for Minnesota homeowners.

25-Year Financial Picture

Over 25 years, a Minnesota Xcel Energy customer with a 7-kilowatt system can expect net savings of $15,000 to $22,000 after recovering the initial investment. The Solar*Rewards incentive contributes approximately $6,300 of the total during the first 10 years. Electricity savings contribute the remainder, assuming rates increase at 2 to 3 percent per year. The inverter replacement at year 12 to 15, costing $1,500 to $2,500, is factored into these numbers.

For homeowners outside Xcel territory who do not have access to Solar*Rewards, the net savings are reduced to $8,000 to $14,000, and the payback period extends to 11 to 14 years. The incentive is the critical variable for Minnesota solar economics.

Cash vs. Loan vs. Lease

Cash purchase produces the highest return. A solar loan allows zero-down installation with monthly payments over 10 to 25 years. The Minnesota Center for Energy and Environment maintains a list of credit unions and local lenders offering solar-specific loans. Interest rates range from 4 to 8 percent. The monthly loan payment is typically lower than the pre-solar electric bill.

A lease places a third-party-owned system on your roof. The third party keeps the federal tax credit and the Solar*Rewards incentive. Given the value of the incentive, leasing is rarely the best option for Minnesota homeowners who can use the tax credit. Ownership through cash or a loan captures significantly more value.

When Solar Is Not Worth It in Minnesota

Heavy tree cover. Minnesota’s mature oak, maple, and pine trees shade many roofs. A shaded roof may not produce enough to justify the investment.

Not an Xcel Energy customer. The Solar*Rewards incentive is the primary financial driver for Minnesota solar. If you are served by a cooperative or municipal utility without a comparable incentive, the payback period is significantly longer.

North-facing roof. A north-facing roof in Minnesota’s northern latitude produces 40 to 50 percent less electricity than a south-facing roof. This may push the payback beyond the acceptable range.

Moving within seven years. With a payback of 8 to 9 years, you need to stay in the home long enough to recover the investment.

Old roof. Minnesota’s freeze-thaw cycles, ice dams, and heavy snow loads shorten roof life. Replace a roof with less than 10 years remaining before installing solar.

Frequently Asked Questions

How do I apply for Xcel Energy’s Solar*Rewards program?

Your solar installer submits the application on your behalf. The program opens in annual blocks, typically in January or February. Applications are accepted on a first-come basis, and the program blocks fill quickly, often within days. An experienced Minnesota installer knows the program schedule and submits your application immediately when the block opens. Ask your installer about the current program block status and whether they have successfully enrolled customers in previous years. If the current block is full, you may need to wait until the next program year.

Will solar panels survive Minnesota hail?

Yes. Solar panels are tested to withstand one-inch hailstones at 50 miles per hour. Minnesota hail storms occasionally exceed this, but panel damage from hail is rare and typically covered by homeowners insurance. Confirm with your insurance agent that your panels are covered under your dwelling policy and increase your coverage limit to reflect the added value.

What happens to my electric bill in January?

January production is the lowest of the year. A system that offsets 100 percent of annual usage still draws from the grid in December through February and exports to the grid in May through August. The net metering credits you accumulate during summer cover the winter deficit. Your January bill will show electricity usage charges, but the accumulated credits from summer offset them. The annual total is what matters. Do not expect zero bills in winter. The system is designed around annual production, not monthly.