Plug-in solar in Maryland
Law in effect
Yes. Maryland's plug-in solar law (HB 1532) is in effect since July 1, 2026. It covers kits with up to 1,200 W of output, back to the building.
Sources differ on part of this. Check the original bill text for the small-device threshold.
The device
- Power limit
- 1,200 W (back to the building)
- Small-device threshold
- 391 W
- Certification
- UL or equivalent nationally recognized testing laboratory
- Electrical code (NEC)
- Not mentioned
- Stops when the grid goes down
- Not mentioned
Your utility
- Approval
- Not required
- Notice
- Notify the utility before you plug in
- Details
- Notice to the utility before installation.
- Fees
- Utility may not charge fees
- Interconnection agreement
- Not needed
Renters
- Protected
- Not addressed by this law
Homeowners associations
- Protected
- Not addressed by this law
Local permits
- May apply
- Not specified
Electricity price
- Average home rate
- 16.8¢ per kWh
Sources
- pluginsolarus.com/states
- pv-magazine-usa.com/?p=20253
- pluginsolarguide.com/compare-laws
- mgaleg.maryland.gov/2026RS/fnotes/bil_0002/hb1532.pdf
- pluginsolarguide.com/maryland
Data as of October 8, 2026. Reference only, not legal advice. Check the bill text, your utility and your landlord or association.
Other states with plug-in solar laws
- California Signed, not yet effective
- Colorado Law in effect
- Connecticut Law in effect
- Maine Law in effect
- New Hampshire Signed, not yet effective
- New Jersey Signed, not yet effective
- Utah Law in effect
- Vermont Law in effect
- Virginia Signed, not yet effective