Solar Incentives in Colorado

Colorado Revised Statute 39-26-724 exempts components used to produce alternating-current electricity from a renewable energy source from state sales tax. Solar PV modules, inverters, mounting hardware, and balance-of-system components qualify. The state portion (2.9%) is exempted automatically when the installer applies the exemption certificate. Local jurisdictions (Denver, Boulder, Fort Collins, Colorado Springs, etc.) have separate sales taxes that may or may not exempt — many follow the state lead. Battery storage equipment is exempt when installed alongside qualifying renewable generation.

Under Colorado Revised Statute 39-3-118.5, residential renewable energy systems are exempt from the increase in property tax that would otherwise result from installation. The exemption is automatic; no homeowner application is required, though disputed assessments are resolved through the local County Assessor. Battery storage installed alongside qualifying solar PV is included. Commercial property treatment is different and not covered by this residential exemption.

Xcel Energy Colorado closed its Solar*Rewards rebate program (which historically paid $0.50–$2.50/W) to new residential applicants in 2017–2018. Current Xcel renewable programs focus on virtual net metering, community solar subscriptions, and grid-services pilots. The Smart Battery program enrolls residential storage in demand-response with annual incentive payments. Black Hills Energy and rural electric cooperatives operate separate programs. Most residential PV economics in Colorado in 2026 derive from sales tax exemption + property tax exemption + net metering rather than direct utility rebate.

Colorado law requires investor-owned utilities (Xcel, Black Hills) to offer net metering at 1:1 retail rate for residential systems up to 120% of the customer's annual consumption. Excess credits roll forward through the calendar year; January 1 reset settles unused credits at avoided cost (~$0.04/kWh). Rural electric cooperatives have varied participation — some offer 1:1, others lower rates. Confirm with your specific utility before sizing.