Balcony Solar in Illinois
Illinois' SB 3104 ('Plug-In Solar Energy Systems', with House companion HB 4524) stalled after being re-referred in May 2026. Its summary cites labeling and certification standards.
Reviewed August 6, 2026 against primary sources. Laws change — the sources below let you re-check.
Did Illinois's bill require UL 3700?
No — the bill does not name UL 3700.
The bill summary references labeling and certification standards; exact wording not quoted from primary text. Does not name UL 3700.
Why this matters: “certified by UL” names an organization; “certified to UL 3700” names a plug-in-PV standard. They are not the same claim. Full explainer →
What's still unsettled
- Re-referred / stalled (May 2026).
- Certification wording is secondary-sourced.
Before you buy in Illinois
This bill did not pass, so there is no plug-in-solar-specific law in Illinois right now — the state's default utility and electrical rules apply. And regardless, no plug-in kit sold in the US carries UL 3700 yet. What "UL 3700 certified" really means →