Assumes 3%/yr rate increases, 0.5%/yr panel degradation and no federal tax credit (the 30% §25D credit ended for systems installed after Dec 31, 2025). How we calculate
Data approachEIA rates · NREL sun hours · 2026 federal policy · methodology
A typical 9 kW solar system in Michigan costs about $27,000 installed in 2026 and saves roughly $1,376 in year one, a simple payback of about 19.6 years. The 30% federal residential solar credit ended for systems installed after Dec 31, 2025, and Michigan credits exported power under an inflow/outflow tariff rather than classic net metering.
Last updated: October 4, 2026. Figures are model estimates, not quotes; sources are listed at the end.
Michigan’s case rests on electricity prices more than sunshine. EIA reported an average residential price of 19.94 cents per kWh for Michigan in November 2025, up from 18.84 cents a year earlier, and monthly readings since then have varied by source. Our model uses a more conservative 17.8 cents so the results are not flattering. Sun hours are lower than in Arizona or California, but our 4.1 peak-sun-hours assumption is enough for solar to work; check your own address in NREL’s PVWatts.
This guide covers 2026 costs, what changed in federal policy, how Michigan’s billing rules affect savings, and what to watch for in quotes. All figures use our standard savings model and the inputs on our Michigan solar data page.
💰 System Cost
What Do Solar Panels Cost in Michigan in 2026?
A typical 9 kW system costs about $27,000 at $3.00 per watt, and no federal credit comes off that price for a system installed in 2026. EnergySage’s Michigan page listed averages of roughly $2.96 to $3.01 per watt for June through August 2026, so $3.00 is a reasonable midpoint; we show $2.60 to $3.50 per watt as a sensitivity range of $23,400 to $31,500.
System size
Price per watt
Installed cost
Federal credit (2026)
9 kW
$2.60 (low case)
$23,400
$0
9 kW
$3.00 (model)
$27,000
$0
9 kW
$3.50 (high case)
$31,500
$0
Assumptions: installed price including labor, permits and interconnection; homeowner-owned system completed in 2026. Low and high cases are scenarios, not market averages.
At 4.1 peak sun hours and a 0.82 system derate, each installed kW produces about 1,227 kWh a year, so a 9 kW system makes roughly 11,044 kWh. That fits a household using about that much, a roughly $164 monthly bill at our 17.8-cent input. Use the solar system size calculator to set a kW target from your own bills before contacting installers, so no one can oversize the system.
Other cost factors:
Equipment quality. Premium monocrystalline panels typically degrade about 0.4–0.5% a year and carry 25-year warranties; cheaper panels can degrade faster.
Roof condition. If the roof needs replacing within the system’s life, do it first; a reroof later means removing and reinstalling the array.
Permits and electrical work. Municipal permit fees and any main panel upgrade add to the total; ask for them itemized.
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🏛️ Incentives
Is There Still a Federal Solar Tax Credit in Michigan in 2026?
No, not for a homeowner who buys a system installed in 2026. The Residential Clean Energy Credit (§25D), which paid 30% of system cost, ended for expenditures made after Dec 31, 2025, and an expenditure counts as made when installation is complete. The One Big Beautiful Bill Act (Public Law 119-21, signed July 4, 2025) ended it, as explained in the IRS FAQs on the OBBB changes.
Who can still benefit:
2025 installations: if your system was completed by Dec 31, 2025, claim the credit on your 2025 return using Form 5695 (filed in 2026).
Carryforwards: unused §25D credit from earlier years can still carry forward.
Leases and PPAs: the company that owns the system may claim the business credit (§48E) if it began construction by July 4, 2026 (that date has now passed) or places the system in service by Dec 31, 2027. Any value reaches you only through the contract price; no specific discount is guaranteed.
Farms and businesses: business-owned solar can still use §48E on the same deadlines, and farms and rural small businesses may qualify for USDA REAP funding when rounds open.
Nonprofits and local governments: these may be able to use elective (“direct”) pay under §6417 for qualifying §48E projects.
At the state level, Michigan has no solar income-tax credit. It does exclude residential solar from property-tax assessment: legislation signed in November 2019 exempts renewable energy systems up to 150 kW that offset on-site use, and excludes residential panels from true cash value, so panels should not raise your assessment (confirm with your local assessor). Homeowner-owned batteries installed in 2026 get no federal credit, and the §25C credit for heat pumps and insulation ended after 2025. The federal IRA Home Energy Rebate programs (HEAR/HOMES) were not repealed, but availability depends on Michigan’s program rollout and remaining funds; check with the state energy office and DSIRE. This is general information, not tax advice; confirm your situation with a tax professional.
⚖️ Policy & Net Metering
How Does Michigan’s Inflow/Outflow Billing Affect Your Savings?
It rewards using your solar at home. Under Michigan’s distributed-generation (DG) tariff, power you draw from the grid (inflow) is billed at your retail rate, while power you send to the grid (outflow) earns a monthly bill credit set by the Michigan Public Service Commission (MPSC) that must reflect cost of service. In practice each kWh used on site is worth more than each kWh exported.
Our model reflects this with a bill-offset factor of 0.70: a right-sized system removes about 70% of the retail value of its production from your bill in year one. That factor is our modeling assumption, not a published tariff number, and your actual offset depends on your utility, rate plan and how much you use during the day. It is the main reason Michigan payback runs longer than the retail rate alone would suggest.
Public Act 235 of 2023 raised the DG program cap from 1% to 10% of a utility’s average in-state peak load over the prior five years, and the MPSC says the law took effect on February 27, 2024. The MPSC notes the inflow/outflow method remains in effect.
Ways to raise the value of your system under inflow/outflow:
Size to your usage, not your roof. Extra panels mostly add lower-value exports.
Shift loads to daylight: laundry, dishwashing, water heating and EV charging.
Compare rate plans carefully. Ask your utility how outflow credits are valued under each plan before switching.
Batteries store midday solar for evening use, but with no federal credit for 2026 installs they are mainly a backup-power purchase; get an itemized price before deciding.
Model your usage pattern with the solar net metering calculator, and see net metering rules by state for comparison.
📈 Payback Period
How Long Does Solar Take to Pay Back in Michigan?
About 19.6 years for a typical 9 kW system bought for $27,000, based on year-one savings of roughly $1,376. Because rates are assumed to rise 3% a year, cumulative savings actually cross zero around year 16 in our model, and the system still has several years left in a 25-year panel warranty.
Input
Value
System size
9.0 kW (22–23 × 400 W panels)
Annual production
11,044 kWh (9 × 4.1 × 365 × 0.82)
Retail rate (model input)
17.8¢/kWh
Bill-offset factor
0.70 (assumption for reduced export credit)
Year-1 savings
~$1,376
Installed cost
$27,000 ($3.00/W, no federal credit)
Simple payback
~19.6 years
25-year bill savings
~$46,900 (3% rate growth, 0.5%/yr degradation)
25-year net savings
~$19,900
Source: GreenEnergyCalc standard model; see methodology.
Chart 1: Cumulative net savings by installed price
Data visualization
Cumulative net savings by installed price, 9 kW Michigan system (USD, years 0-25). At $3.00/W the model crosses zero in year 17 and reaches about $19,900 by year 25 with no federal credit and 3% annual rate growth. Source: GreenEnergyCalc model with a 17.8 cent/kWh input; EnergySage Michigan pricing 2026.
Year
$2.60/W ($23,400)
$3.00/W ($27,000)
$3.50/W ($31,500)
5
-$16,169
-$19,769
-$24,269
10
-$7,994
-$11,594
-$16,094
15
+$1,249
-$2,351
-$6,851
20
+$11,699
+$8,099
+$3,599
25
+$23,513
+$19,913
+$15,413
Chart summary: At $3.00 per watt the system is still about $2,350 under water at year 15 and turns positive in year 17, reaching about $19,900 net by year 25. A $2.60 quote breaks even around year 15, while a $3.50 quote does not break even until around year 19. The installed price moves the 25-year result by about $3,600 to $4,500 for every $0.50 per watt, so quote comparison matters more than almost any other input.
Chart 2: Payback sensitivity to electricity rate
Data visualization
Simple payback in years by installed price and retail rate, 9 kW Michigan system. Moving from 17.8 to 19.94 cents/kWh trims payback by about 1.8 to 2.5 years at each price tier. Source: GreenEnergyCalc model; EIA Electric Power Monthly Table 5.6.A (Michigan residential, Nov 2025).
Installed price
Simple payback at 17.8¢ (model)
Simple payback at 19.94¢ (EIA, Nov 2025)
25-year net savings at 17.8¢
25-year net savings at 19.94¢
$2.60/W ($23,400)
17.0 yrs
15.2 yrs
~$23,500
~$29,200
$3.00/W ($27,000)
19.6 yrs
17.5 yrs
~$19,900
~$25,600
$3.50/W ($31,500)
22.9 yrs
20.4 yrs
~$15,400
~$21,100
Chart summary: Using EIA’s November 2025 Michigan residential price of 19.94 cents instead of our 17.8-cent input shortens simple payback by roughly 1.8 to 2.5 years at every price tier and adds about $5,600 to 25-year net savings. Even at 19.94 cents, a $3.50-per-watt quote takes more than 20 years to pay back, so both your rate and your quote decide the outcome. Both charts keep the 0.70 offset factor, so a home that uses more of its solar directly would do better and one that exports more would do worse.
Compared with the old 30% credit
Scenario
Net cost
Simple payback
25-year net savings
Installed by Dec 31, 2025 (30% §25D credit)
$18,900
~13.7 years
~$28,000
Installed in 2026, $3.00/W (model)
$27,000
~19.6 years
~$19,900
Same production, rate and offset inputs as above. The 2025 row is historical and no longer available for new installs.
Over 25 years, bills without solar for this household would total about $71,700 (a $164 average monthly bill growing 3% a year). With solar, the system cost plus remaining bills total about $51,800, a net difference of roughly $19,900.
Financing: a $27,000 loan at 7% (a hypothetical rate) costs about $278 a month over 12 years or about $209 a month over 20 years, against year-one savings of about $115 a month, so a loan is cash-flow negative at first. Leases and PPAs avoid the upfront cost, but compare the contract price per kWh against your current rate and check the escalator. Compare Michigan with Ohio and Wisconsin in our payback period by state guide, or model your quote with the solar payback calculator.
Solar vs utility company · 25-year comparison
25-year totals: 3%/yr rate increases, 0.5%/yr degradation, no federal credit. Methodology
Collect at least three written quotes, verify credentials, and compare the cash price separately from any financing. Quotes for the same system can differ by thousands of dollars.
What to check:
Credentials. NABCEP (North American Board of Certified Energy Practitioners) certification is a widely used independent quality signal; electrical work must be done under a licensed Michigan electrical contractor.
Production estimate. Cross-check the kWh per year against NREL PVWatts for your address, including snow and shading.
Billing assumptions. Ask which export credit rate the savings estimate uses; some proposals still assume full retail net metering, which overstates savings under inflow/outflow.
Federal credit. Reject proposals that subtract a 30% federal credit for a 2026 installation, and loans structured around a “tax credit paydown” payment that will no longer arrive.
Loan fees. Installer-arranged loans can include a dealer fee that inflates the principal; ask for the cash price and effective APR side by side. A home equity loan or HELOC may cost less.
Warranties. Look for at least a 10-year workmanship warranty, plus 25-year panel warranties; string inverters typically carry 10–12 years, microinverters often 25.
Model inputs (our assumptions): 4.1 peak sun hours, 0.82 derate, 0.70 bill-offset factor, 3% annual rate growth, 0.5% annual degradation, 17.8¢/kWh. Cumulative figures are modeled year by year with these inputs. Results are estimates, not quotes or tax advice.
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Not for a homeowner-owned system installed in 2026. The 30% Residential Clean Energy Credit (§25D) ended for expenditures made after Dec 31, 2025, under Public Law 119-21 (signed July 4, 2025), and an expenditure counts when installation is complete. If your system was completed in 2025, claim it on your 2025 return with Form 5695; unused credit from earlier years can carry forward. Michigan has no state solar income-tax credit.
A typical 9 kW system costs about $27,000 at $3.00 per watt, and EnergySage listed Michigan averages of roughly $2.96 to $3.01 per watt in mid-2026. Our model range of $2.60 to $3.50 per watt equals $23,400 to $31,500 for 9 kW. No federal credit comes off a 2026 installation, so get at least three written quotes.
New customers are on an inflow/outflow distributed-generation tariff, not classic net metering. Power you draw from the grid is billed at your retail rate, while power you export is credited at a rate set by the Michigan Public Service Commission that reflects cost of service. Public Act 235 of 2023 raised the program cap from 1% to 10% of a utility's average in-state peak load. Our model reflects the export penalty with a 0.70 bill-offset factor, which is an assumption, not a tariff value.
About 19.6 years for a 9 kW system at $27,000 in our model, based on 11,044 kWh a year, a 17.8-cent rate and a 0.70 offset factor (year-one savings of about $1,376). At a $2.60 to $3.50 per watt price the range is 17.0 to 22.9 years, and at a 19.94-cent rate (EIA, Nov 2025) it is 15.2 to 20.4 years. With 3% annual rate growth, cumulative savings break even about 3 to 5 years sooner than the simple figure.
It can be, but the return is slower. Our model shows about $19,900 in 25-year net savings for a $27,000 system, versus about $28,000 with the old 30% credit, and the result depends on your retail rate, your quote, and how much solar you use at home. Size the system to your usage, avoid proposals that assume full retail credit for exports, and compare cash, loan and lease offers.
Michigan solar by electric bill
See system size and payback for common monthly bills in Michigan.
21.53¢/kWh — Michigan average residential price. Source: EIA Electric Power Monthly, Table 5.6.B (year-to-date through July 2026), residential average retail price (July 2026) (EIA)
Solar production
4.1 peak sun hours/day × 0.82 system derate. Approximate state-average daily solar resource (peak sun hours) based on NREL solar resource data (NSRDB); not location-specific — use NREL PVWatts for an address-level estimate. (NREL PVWatts)
Installed price
$3.00 per watt before incentives. Blended 2026 US residential installed price used by this site; EnergySage marketplace reported about $2.60/W (mid-2026); full-market medians are higher.
Federal tax credit
$0 for homeowner-owned systems installed in 2026 — the 30% §25D credit ended Dec 31, 2025 (IRS)
Net metering
Net billing / reduced export credit — solar assumed to offset 70% of the bill. Michigan's inflow/outflow distributed-generation tariff credits exports below the full retail rate.
Estimates only — not tax, legal or financial advice. Get at least three installer quotes and confirm incentives with your utility and a tax professional.