Is plug-in solar legal in Maryland?
Legal now Yes. Maryland's plug-in solar law (HB 1532 (Chapter 353 of 2026)) has been in effect since July 1, 2026.
| Law | HB 1532 (Chapter 353 of 2026) |
|---|---|
| Signed | May 12, 2026 |
| In effect since | July 1, 2026 |
| Size limit | 1,200 W, one system per meter |
| Safety certification | Listed by UL or an equivalent lab; the utility receives a safety and output certification |
| Telling your utility | Tell your utility before you install |
| Renters and HOAs | Not addressed in the law |
Before you buy, check the kit’s certification against the rule above. As of our last check, certified microinverters exist (Hoymiles and APsystems, certified to UL 3700 in 2026) but we couldn’t confirm a complete kit certified as a whole system. What UL 3700 means.
What a kit would save in Maryland
| Kit size | Solar per year | Saved per year |
|---|---|---|
| 400 W | 401 kWh | $73 |
| 800 W | 802 kWh | $146 |
| 1,200 W | 1,203 kWh | $219 |
Panels on a south-facing balcony railing, Maryland’s average sunshine (NREL PVWatts, state average), today’s price of 21.4¢/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 Maryland.