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Solar by stateSeptember 2026

Solar in Colorado: how the rules work

How Colorado credits the power solar panels send back to the grid, what homes there pay for electricity, and what to check when a home with solar is bought or sold.

Export credit
Full retail credit
Full retail
Largest utility
Xcel Energy (Public Service Co. of Colorado)
Home electricity
16.7¢/kWh
Rising ~2.0%/yr over 10 years (EIA)
Typical installed price
$2.65/W
State average quote before incentives (EnergySage)

How exported power is credited

Power sent to the grid is credited at the full retail rate (kWh for kWh), at least within each billing period.

By state law, exports are credited 1:1 at retail and carried forward. At year end the customer can keep banking credits or cash them out at Xcel's average hourly incremental cost. No sunset or grandfathering cutoff.

What changes for a home with solar

A savings estimate that counts exported power at the full retail rate matches how exports are credited here. Where only month-end surplus earns a lower rate, homes that use most of their power themselves come closest to that estimate.

Electricity here costs about 16.7¢ per kWh (2026) and has risen about 2.0% a year over the last decade. A lease or PPA escalator above that pace makes the solar payment rise faster than utility rates have.

When a home with solar is sold in Colorado

Have the solar contract for a Colorado home?

Upload it and get a letter-graded report card: price, production, payment changes, value and transfer terms, measured against Colorado’s rates and rules.

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Sources

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