MUSKEGO · INCENTIVES
Solar incentives available in Muskego
The 2026 incentive stack for a Muskego homeowner runs through Focus on Energy and Focus on Energy residential solar rebate, which together cover a meaningful share of install cost in Wisconsin. The federal Section 25D credit ended December 31, 2025, so the stack is leaner than it was a year ago, and the page below walks through each program, what it actually pays, and a few claims that do not match the underlying statute.
Federal: Residential Clean Energy Credit (Section 25D)
The 30% federal Residential Clean Energy Credit expired for systems placed in service after December 31, 2025, under Public Law 119-21 (the One Big Beautiful Bill). The credit covered solar electric property, battery storage of 3 kWh or more, and associated labor and balance-of-system costs at qualifying U.S. residences. Re-roofing and structural roof work unrelated to mounting did not qualify even while the credit was active. IRS Residential Clean Energy Credit guidance and the IRS FAQ on P.L. 119-21 document the cutoff.
Section 48E (the commercial clean electricity credit) remains in effect for third-party-owned systems. In a lease or power purchase agreement, the leasing company owns the system and claims the 48E credit; the homeowner does not. Summit’s detailed explanation lives on the page on the 2026 federal credit.
State: Focus on Energy
Wisconsin compensates residential solar systems through Focus on Energy , administered by Focus on Energy (Wisconsin's statewide energy efficiency and renewables program). The program structure varies by state, but the practical question for a Muskego homeowner is the same: how much of the system price does the state program offset, and is the value delivered up front or over time?
A homeowner should ask any installer to break out the Focus on Energy value as a line item on the proposal so the math is visible, not bundled into the headline net price. Current values and contract terms are documented on the Focus on Energy (Wisconsin's statewide energy efficiency and renewables program) site linked above, and the Focus on Energy value is one of the inputs that determines the post-incentive net on the Muskego cost page.
Utility / state rebate: Focus on Energy residential solar rebate
Focus on Energy residential solar rebate delivers an additional up-front benefit to qualifying residential systems in Wisconsin: Up to $2,400 per qualifying installation in the 2026 program year, ends August 31, 2026. Eligibility rules and rebate amounts move with the utility's tariff cycle or the program year, so the figure on any installer's proposal should be verified against the current Focus on Energy Trade Ally network before treating it as a fixed input.
City and county: Waukesha County
DSIRE, the federally funded clearinghouse for state and local energy incentives, lists city-level solar incentives where they exist. For most Wisconsin municipalities, including Muskego, the state and utility programs are the full incentive stack; there is no city-specific rebate or income-tax credit layered on top. Verify the current state of any local incentive at DSIRE’s Wisconsin page before signing.
State-specific compliance note
We Energies net metering is AVOIDED-COST around 4.2¢/kWh on net exports, NOT retail. Self-consumption offsets at retail rate, but exports do not. Battery pairing and load-shift discipline materially change the math.
Verifying these numbers
Every figure on this page traces to a primary source: IRS guidance for the federal credit, the Focus on Energy public documents for the state-incentive value, Public Service Commission of Wisconsin tariff filings for We Energies program terms, and DSIRE for any local additions. Summit’s methodology page lists the verification process and the dates each input was last checked.