Plug-in solar in Wisconsin: No bill found

Plug-in solar in Wisconsin

No bill found Checked November 10, 2026

Note. We found no bill, but we have not yet searched this legislature's own bill database; see the notes.

We found no Wisconsin bill on plug-in or balcony solar. Two independent trackers also list none. Without a state law, plug-in systems fall under your utility's own interconnection rules.

The rules

Wisconsin has no enacted plug-in solar law. There are no state rules to list; your utility's interconnection rules apply.

What's next

We will add any bill introduced in the next session. Without a state law, ask your utility how it treats small plug-in systems before you buy.

What could it save?

For an 800 W panel kit at Wisconsin's average residential price of 18.79¢/kWh (September 2025 – August 2026 (12 months)):

Ideal tilt (20°, south): 1,067 kWh a year: about $138 typical (69% used at home), up to $201 best case (100%)
Vertical railing (90°, south): 760 kWh a year: about $99 typical (69% used at home), up to $143 best case (100%)

"Typical" uses HTW Berlin's model for an 800 W system without a battery; exports are assumed to earn nothing. Solar data: NREL PVWatts for Madison (capital). Try your own numbers · Is it worth it? · Railing vs tilted

Price source: EIA residential average, September 2025 – August 2026 (12 months).

Questions

Is plug-in solar legal in Wisconsin?

Wisconsin has no plug-in solar law. Without one, small plug-in systems fall under your utility's own interconnection rules. Ask your utility before you connect anything.

Sources

Plug-In Solar Guide: "No Legislation" list (lead only) (Lead only (not relied on); accessed November 10, 2026)
Exact Solar, state-by-state update, July 24, 2026: "States with no legislation" (lead only) (Lead only (not relied on); accessed November 10, 2026)

Research note: No bill found. Two independent trackers list no plug-in bill; we have not yet run this legislature's own full-text search.

This page is general information, not legal or electrical advice. Laws change and utilities differ. Check the linked official sources, your lease or HOA rules, and your utility before you buy or install anything. Full disclaimer.