Michigan Solar: Inflow, Outflow and a 110% Size Cap

A typical Michigan home system is 6.63 kW and costs about $20,487 in cash at $3.09 per watt. Our two worked cases pay back in 20.6 to 24.6 years: power you use saves about 21.05¢, but power you send out earns an outflow credit, 8.709¢ at DTE off-peak.

See what solar does for your Michigan bill

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Inflow and outflow: the two prices behind a Michigan payback

Michigan closed net metering to new systems. Under the Distributed Generation Program, one meter counts power coming in (inflow) and power going out (outflow) separately, and they are worth very different amounts.

Power you use as it is made about 21.05¢

  1. Your home uses it the moment the panels make it.
  2. You never buy it, so you save both supply and delivery.
  3. At DTE off-peak that is 8.709¢ plus 9.726¢ delivery: 18.435¢ before surcharges.

Outflow you send to the grid 5.6¢ to 15.1904¢

  1. Every kWh that leaves your home counts as outflow.
  2. It earns a credit for the power supply part only, not delivery.
  3. At night you buy inflow back at your full price.
Typical 6.63 kW system, $20,487 cash, 40% used at home
CasePower used at homeOutflow creditsSavings after upkeepSimple payback
DTE, 8.709¢ off-peak credit (Rider 18, rate D1.11)$737$457$99520.6 years
Great Lakes Energy, 5.6¢ credit$737$294$83224.6 years

Swipe the table sideways to see every column.

The DTE case is the cautious one. DTE pays more for outflow from 3 to 7 p.m. on weekdays, so a home that sends out more power in those hours does a little better.

How we calculated this
  • Output: 6.63 kW × 1,320 kWh per kW = 8,752 kWh a year.
  • Split: 40% used at home as it is made (3,501 kWh) and 60% sent out (5,251 kWh). This is a planning assumption, not a measured Michigan average.
  • Savings: 3,501 kWh × 21.05¢ = $737, plus 5,251 kWh × the credit: $457 at DTE’s 8.709¢ and $294 at Great Lakes Energy’s 5.6¢.
  • Upkeep: $30 per kW a year, $198.90, including an inverter reserve. Payback: $20,487 ÷ (savings − upkeep). No financing, rate changes or panel aging.
  • 21.05¢ is the EIA state average for 12 months to July 2026. It includes fixed charges, so it can run high, and a Great Lakes Energy home may pay a different price.
  • DTE’s peak-hour credits are 14.407¢ (June to September) and 10.319¢ (October to May). Weighted by the hours panels produce, we estimate about 9.4¢; that is an estimate, not a rate.

DTE, Consumers Energy, Lansing BWL or Great Lakes Energy: what your outflow earns

The name at the top of your electric bill sets the credit for every kWh you send out. The two big utilities follow the state program; co-ops and city utilities write their own terms.

DTE Electric

8.709¢ per kWh sent out, off-peak

Rider 18 on rate D1.11, from March 5, 2026. Weekdays 3 to 7 p.m.: 14.407¢ June to September, 10.319¢ October to May. Serves Detroit and southeast Michigan.

Next: ask for savings priced at the outflow credit, not your full rate.

Consumers Energy

8.2996¢ per kWh sent out, October to May

Rate RSP, from May 1, 2026. June to September: 15.1904¢ in on-peak hours, 10.397¢ at other times. Serves Grand Rapids, Flint, Kalamazoo and much of the Lower Peninsula.

Next: ask for the current rate sheet before you sign.

A co-op or city utility

Its own rules

Lansing Board of Water & Light credits 7.5¢. Great Lakes Energy credits 5.6¢ for 10 years, on systems up to 20 kW. Other co-ops and city utilities set their own terms.

Next: get the credit, and whether unused credit carries over, in writing.

Outflow credit for a new home system, before the monthly fuel adjustment
Utility and plan
When the power goes out
Credit per kWh
DTE, rate D1.11
Weekdays 3 to 7 p.m., June to September
14.407¢
DTE, rate D1.11
Weekdays 3 to 7 p.m., October to May
10.319¢
DTE, rate D1.11
All other hours
8.709¢
Consumers Energy, rate RSP
On-peak hours, June to September
15.1904¢
Consumers Energy, rate RSP
Other hours, June to September
10.397¢
Consumers Energy, rate RSP
October to May
8.2996¢
Lansing BWL
Any time
7.5¢
Great Lakes Energy, Buy-All / Sell-All
All the power you make, 20-year agreement
6.5¢
Great Lakes Energy
Extra power, 10-year agreement, up to 20 kW
5.6¢

Swipe the table sideways to see every column.

What Michigan outflow credits can pay, and one DTE wrinkle

Since February 27, 2024, credits at DTE and Consumers Energy can pay every charge on your bill except securitization charges, a small line that repays utility bonds. Unused credits move to the next month. DTE says its credits do not expire and cannot be cashed out while you stay in the program. A small monthly fuel adjustment (the PSCR factor) raises or lowers each credit.

DTE gives no credit for power a battery sends to the grid. One sentence in DTE’s tariff still says credits do not pay delivery charges, while its letter to solar customers says they do; if your first solar bill does not match the letter, ask DTE. At Great Lakes Energy the credit lowers the energy charge, not the fixed monthly charge. Indiana Michigan Power, Upper Peninsula Power, Upper Michigan Energy Resources, Alpena Power and Xcel Energy run the same state program, each with its own credit.

Michigan’s 110% rule: your past 12 months of use cap the system

Each extra panel past your daytime use sends more power out at the outflow credit. Michigan also caps how big a system on the state program may be.

110%Size limit

A system may make no more than 110% of the power you used in the past 12 months, and no more than 550 kW.

$50Application fee

At DTE and Consumers Energy, filed with the request to connect, before the install.

10%Room in the program

First come, first served up to 10% of each utility’s peak load. An October 2025 state report found no utility had reached it.

10 yearsOlder net metering

Homes that joined before it closed keep it for up to 10 years from enrollment: closed May 9, 2019 at DTE, January 1, 2021 at Consumers Energy.

A Consumers Energy system above the size limit goes to the Simple Renewable Program, which pays a flat 6.1¢. At DTE, the first bill on Rider 18 can take one to two billing cycles after final approval.

Michigan solar prices at $3.09 per watt, $0.20 above the US average

The September 2026 benchmark, $0.20 above the US average. These are modeled cash prices, not quotes we collected.

Cash price and power made by system size
System sizePower made a yearCash at $3.09 per watt
5 kW6,600 kWh$15,450
6.63 kW (typical)8,752 kWh$20,487
8 kW10,560 kWh$24,720
10 kW13,200 kWh$30,900
How we got these numbers
  • 6.63 kW is the median size Michigan homeowners installed in 2025 (Berkeley Lab, 499 systems). Size yours to your own 12 months of use.
  • Output uses the Cost Index figure of 1,320 kWh per kW a year. Shade lowers it.
  • A system you own gets no federal tax credit after December 31, 2025.

Michigan’s property tax rule, Lansing’s rebate and Michigan Saves loans

No statewide rebate lowers the price. Michigan helps through your tax assessment, one city utility’s rebate and a nonprofit loan.

$0Added property tax while you own

The value solar adds stays out of your assessment until you sell. Systems of 150 kW or less that make no more than the home uses. Nothing to file.

$2,000Lansing BWL rebate

$500 per kW, up to $2,000. Board of Water & Light customers only, while money lasts.

5.99%Michigan Saves loan

Lowest posted rate. $1,000 to $75,000, up to 180 months, through credit unions.

$0Federal tax credit

Not for a system you own placed in service after December 31, 2025.

Ways to pay for solar in Michigan
Way to pay
Who owns the panels
Michigan point to check
Cash
You
The property tax rule applies; outside Lansing no rebate lowers the price
Loan
You
Michigan Saves needs an authorized contractor; compare the financed total with cash
Lease
The company
The property tax rule covers leased systems too; BWL’s rebate form asks for a purchase invoice

Swipe the table sideways to see every column.

Michigan offers that are not what they sound like
  • The property tax rule is a delay: after a sale, the assessor may add the system’s value for the new owner. You can report the system on Form 865, but you do not have to.
  • MI Solar for All: the state marks it paused after a federal termination letter dated August 7, 2025. It was still paused when we checked.
  • A Michigan income tax credit for solar: we found none to count on. Ask a tax professional or the Michigan Department of Treasury.
  • Michigan Saves: a loan, not free money. Your own rate depends on your credit.

Before you go solar in Michigan: daytime use, HOA, roof and time

  • Daytime usePower used as it is made saves your full price. Outflow earns the credit only.
  • Your HOASince April 2, 2025 it cannot ban solar, and it has 30 days to answer a written application.
  • Roof and shadeTrees cut output. Replace an old roof first, or get the remove-and-reinstall cost in writing.
  • Time in the homeWith paybacks above 20 years in our cases, compare your planned stay with your quote’s payback.

An HOA’s standards may not cut a system’s output by more than 10% or add more than $1,000 to its cost (2024 Public Act 68).

Michigan solar installers checked against the state license registry

Three companies on our Michigan list, A to Z, not ranked. Facts from their own sites and the Michigan licensing registry (LARA), read October 13 and 14, 2026.

Homeland Solar

Office
Ann Arbor, MI
Michigan license
Electrical contractor 6108312, active October 13, 2026
Warranty
No terms published
More facts
Solar since
2010, first install in Ann Arbor (company says)
Ways to pay
Michigan Saves loan or home equity loan
Area
Washtenaw County and southeast Michigan
Homeland Solar profile

Michigan Solar Solutions

Office
Commerce Township and Riverdale, MI
Michigan license
Electrical contractor 6114340 and residential builder 2102203667, active October 13, 2026
Warranty
Workmanship warranty offered; term not published
More facts
Founded
2007 (company says)
Ways to pay
Michigan Saves loan
Area
Michigan’s Lower Peninsula
Michigan Solar Solutions profile

Wolf River Electric

Office
Isanti, MN (headquarters); no Michigan office listed
Michigan license
No record found October 13, 2026; ask for it
Warranty
25 years on labor, parts and roof penetrations, on a page written for Maxeon systems
More facts
Michigan service
Named on its homepage, not on its locations page; ask before you book
Ways to pay
Cash or loan
Wolf River Electric profile

None of these three companies buys homeowner leads from EcoGen America. How we make money.

What to check on a Michigan quote: outflow, size and license

  • Your utility’s outflow creditDTE, Consumers Energy or your co-op by name, the rate plan, and the cents per kWh used for power sent out.
  • Your home-use shareThe share of solar power you are expected to use as it is made, and why.
  • Size against the 110% limitYour last 12 months of kWh next to the system’s yearly output.
  • No federal credit subtractedThe homeowner credit ended for systems placed in service after December 31, 2025.
  • Cash and financed pricesBoth totals side by side, with any dealer fee shown.
  • A Michigan licenseThe license number, which you can look up in the LARA license search.

Comparing Michigan quotes?

Ask each installer which outflow credit it used, and to size from your last 12 months of use.

See what solar does for your Michigan bill

EcoGen America does not sell or install solar. When you request quotes, we pass your request to solar providers serving your area, and they pay us for the introduction. Providers can include installers, solar marketplaces and lead exchanges, and more than one may contact you. You never pay us. Privacy policy

Michigan Solar FAQs

Does Michigan still have net metering?

Not for new systems. DTE closed it on May 9, 2019 and Consumers Energy on January 1, 2021. New systems join the Distributed Generation Program: power you use saves the full price, and power you send out earns an outflow credit. Homes on net metering keep it for up to 10 years from enrollment.

Will solar raise my Michigan property tax?

Not while you own the home. Under MCL 211.27(2)(p), the assessor may not count the value a home system adds until the property is sold. The system must be 150 kW or less and make no more power in a year than the home uses. You do not have to apply.

Can my HOA stop me from installing solar?

No. Since April 2, 2025, an HOA rule that bans solar, or has that effect, is void. Send a written application; the HOA must approve or deny it within 30 days, and if it does neither, you may install.

Does DTE credit power my battery sends to the grid?

No. DTE gives no outflow credit for power a battery sends to the grid. A battery can still store daytime solar for your own evening use.

Can I get free panels through MI Solar for All?

Not now. The state marks MI Solar for All as paused after a federal termination letter dated August 7, 2025, and it was still paused when we checked. Be wary of anyone who says the panels come through it.

Rate sheets, statutes and the people behind this Michigan guide

Sources (20 documents, each with the date we read it)
  1. EcoGen Solar Cost Index, September 2026: Michigan$3.09 per watt, 6.63 kW median size (Berkeley Lab 2025, 499 systems), 1,320 kWh per kW, 21.05¢ statewide average (EIA).
  2. DTE Electric Rate Book: Rider 18 and rate D1.11Outflow credits effective March 5, 2026 (Sheet D-115.00), peak hours, 9.726¢ delivery, 110% and 550 kW limits, 10% program size. Read October 1, 2026.
  3. DTE Energy: letter to Rider 18 rooftop solar customersWhat credits can pay, carry-forward, first bill timing. Read September 30, 2026.
  4. Consumers Energy Electric Rate BookRSP outflow credits effective May 1, 2026 (Sheet C-64.30); Simple Renewable Program 6.1¢. Recorded September 29, 2026.
  5. Michigan Public Service Commission: Distributed Generation Program$50 application fee, what credits pay since February 27, 2024, October 2025 program cap report. Recorded September 29, 2026.
  6. Michigan Compiled Laws 460.1183Older net metering kept up to 10 years. Recorded September 29, 2026.
  7. Lansing Board of Water & Light: Install my own solar$500 per kW rebate up to $2,000, 7.5¢ outflow credit. Read October 1, 2026.
  8. Great Lakes Energy: Renewable energy5.6¢ credit, 10-year agreement, 20 kW cap; Buy-All / Sell-All 6.5¢ for 20 years; $100 fee. Read October 1, 2026.
  9. Michigan Compiled Laws 211.27Property tax rule, 150 kW limit. Recorded September 29, 2026.
  10. Michigan State Tax Commission: Bulletin 6 of 2020Form 865, leased systems. Recorded September 29, 2026.
  11. Michigan Saves: Home energy improvements$1,000 to $75,000, up to 180 months, posted rates from 5.99%. Read October 1, 2026.
  12. Michigan Legislature: 2024 Public Act 68HOA solar rules from April 2, 2025: 30 days, 10%, $1,000. Recorded September 29, 2026.
  13. Michigan EGLE: MI Solar for AllPaused after the August 7, 2025 termination letter. Recorded September 29, 2026.
  14. IRS: Residential Clean Energy CreditNo credit for property placed in service after December 31, 2025. Read September 30, 2026.
  15. U.S. EIA: average residential price by state21.05¢, 12 months August 2025 to July 2026, as used in the Cost Index.
  16. 2025 Annual Technology Baseline: residential PVOwner costs of $29.83 per kW a year, rounded to $30 for upkeep.
  17. Berkeley Lab: solar self-consumption research (2022)Informs the 40% home-use planning default. It is not a measured Michigan average.
  18. EcoGen: Are solar panels worth it in Michigan?The two worked cases and the estimated 9.4¢ solar-weighted DTE credit, from tariffs read October 6, 2026.
  19. Michigan LARA, Bureau of Construction Codes: license lookupInstaller license numbers and status. Read October 13, 2026.
  20. EcoGen: Michigan solar companiesThe three installers on our Michigan list, with company facts read October 13 and 14, 2026.
Dean Mahmoud
Written by

Dean Mahmoud

CEO of EcoGen America. Since 2021 he has connected homeowners with residential solar installers in all 50 states.

About Dean
Trevor Guilday
Checked by

Trevor Guilday

Founder of EcoGen America. He has worked in residential solar since 2016 and maintains the EcoGen Solar Cost Index.

About Trevor