Winter Power Outages in Wisconsin: Generators, Surge Protection and What Rebates Exist

The best way to prepare a Wisconsin home for a winter outage is a generator connected through a transfer switch or interlock, plus a whole-house surge-protective device at the panel. We found no rebate from Focus on Energy or We Energies, and none in a limited check of Alliant Energy. Municipal-utility customers should ask their utility before planning the work.

How much power do Wisconsin homes actually lose?

In 2025, Wisconsin utility customers averaged 230 minutes without power when major storms are counted, and 84.2 minutes when they're excluded, according to the U.S. Energy Information Administration. In other words, most outage time comes from a few big events, not everyday blips.

March 13, 2026 was one of those events. Wisconsin Public Radio reported that more than 71,000 We Energies customers were without power that afternoon after wind gusts of up to 60 mph, with downed poles in Port Washington and most of the remaining outages in Milwaukee and Waukesha counties. We Energies warned that full restoration could stretch into the weekend.

For a home that depends on a sump pump, a well pump or a furnace blower, those hours are the ones that matter.

The safe way to connect a generator

We Energies' safety guidance is blunt: the only safe way to connect a generator to your existing wiring is to have a licensed electrician install a transfer switch, which prevents dangerous back feed onto utility lines. Back feed can energize lines a crew believes are dead.

There are two common setups:

• Standby generator with an automatic transfer switch. It starts on its own when the power drops and runs from natural gas or propane. See our standby generator winter prep guide.
• Portable generator with an inlet and interlock (or manual transfer switch). You roll it out and plug in a single cord. No extension cords run through windows, and no "suicide cords" plugged into outlets. See portable generator hookups.

Either one needs an electrical permit and an inspection from your city, village or the state, depending on where you live. We handle the permit.

Why surge protection belongs in the same project

When power comes back after a storm, and when a generator starts, stops or transfers, the electronics in your home see voltage disturbances. A whole-house surge-protective device (SPD) at the panel is the first line of defense for furnaces, appliances and anything with a circuit board.

It's also code now. Wisconsin's electrical code, SPS 316, adopted the 2023 National Electrical Code effective September 1, 2026. NEC 230.67 requires a Type 1 or Type 2 surge-protective device on services that supply dwelling units, installed at or next to the service equipment or at the panel downstream. Wisconsin's rule doesn't amend that requirement. So if your generator project includes a service upgrade or a new panel, the SPD is part of the job anyway. More in our surge protection guide and Wisconsin 2023 NEC explainer.

Planning both together lets us coordinate the transfer equipment, surge protection, permits and inspections for your project.

Rebates and eligibility

Here is what our program check found as of November 2026.

• Generators and surge protection: check your utility. We found no generator or surge-protection rebate from Focus on Energy or We Energies, and none in a limited check of Alliant Energy. Municipal-utility customers should ask their utility.
• Federal tax credits: none to claim. The IRS says the Energy Efficient Home Improvement Credit (25C) and the Residential Clean Energy Credit (25D) ended after December 31, 2025, and the EV charger credit (30C) ended for property placed in service after June 30, 2026 under Public Law 119-21. Be wary of ads still promising a "30% federal credit."
• Income-qualified panel and wiring help: maybe. Wisconsin's Home Electrification and Appliance Rebates (HEAR), run by Focus on Energy, can cover an electrical panel upgrade and electrical wiring for households with income under 150% of area median income. The work must be done by an IRA Registered Contractor. Details and eligibility: focusonenergy.com/ira-hear.

Programs change and funds can run out, so always confirm on the program's page before you count on it.

Planning your project

Before the first big storm:

1. Decide what has to run during an outage: the furnace, sump, well, refrigerator or the whole house.
2. Check whether your panel has room, or needs a panel upgrade.
3. Pick standby or portable plus an interlock.
4. Add a whole-house SPD.

Couillard Electric is led by Dennis Couillard, a Residential Master Electrician, and serves homes in Sheboygan, Ozaukee, Washington, Milwaukee, Waukesha, Fond du Lac, Calumet, Manitowoc, Winnebago and Outagamie counties. Call (262) 618-2851 or Request a free estimate. See all generator services.