Is plug-in solar legal in Wisconsin?
No bill yet Not under a dedicated law. Wisconsin has no plug-in solar bill so far.
Without a dedicated law, a kit that sends power into your home wiring counts as a grid connection under your utility’s rules for rooftop solar. That usually means an interconnection application, and some utilities charge fees or require a licensed installer.
What you can do today:
- Ask your utility whether it has a simplified process for systems under 1,000 W. A few do.
- Use solar without touching the grid: a power station charged by portable panels is legal everywhere, including in a rental.
- Watch the bill. No bill has been filed in Wisconsin yet. We update this page when anything changes.
What a kit would save in Wisconsin
| Kit size | Solar per year | Saved per year |
|---|---|---|
| 400 W | 384 kWh | $63 |
| 800 W | 768 kWh | $127 |
| 1,200 W | 1,153 kWh | $190 |
Panels on a south-facing balcony railing, Wisconsin’s average sunshine (NREL PVWatts, state average), today’s price of 19.4¢/kWh, and 85% of the output used at home. Run it for your ZIP code.
See every state’s plug-in solar status, or electricity prices and other rules in Wisconsin.