Is plug-in solar legal in Colorado?
Legal now Yes. Colorado's plug-in solar law (HB26-1007) has been in effect since Aug 12, 2026.
| Law | HB26-1007 |
|---|---|
| Signed | May 7, 2026 |
| In effect since | Aug 12, 2026 |
| Size limit | 1,920 W to the grid, one system per address |
| Safety certification | Labeled and listed by a recognized testing lab; must stop energizing the grid in an outage |
| Telling your utility | Only if your utility asks |
| Renters and HOAs | From Jan 1, 2027, unreasonable landlord and HOA bans are void; reasonable limits are allowed |
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 Colorado
| Kit size | Solar per year | Saved per year |
|---|---|---|
| 400 W | 459 kWh | $67 |
| 800 W | 919 kWh | $134 |
| 1,200 W | 1,378 kWh | $201 |
Panels on a south-facing balcony railing, Colorado’s average sunshine (NREL PVWatts, state average), today’s price of 17.2¢/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 Colorado.