CASTLE ROCK · DOUGLAS COUNTY
Solar in Castle Rock
A 7 kW south-facing system in Castle Rock produces about 11,250 kWh/year per NREL PVWatts. Pre-incentive install cost runs $18,900 to $21,000, net cash out-of-pocket lands around ~$18,900 to $21,000 after Solar*Rewards and Solar*Rewards production incentive (Xcel) / no statewide upfront residential rebate. Cash payback in 10 to 11 years, financed in 15 to 19 years once dealer fees layer in.
11,250 kWh/year
Annual production
PVWatts v8, 7 kW south-facing.
~$18,900 to $21,000
Net cash cost
After incentives, before financing.
10 to 11 years
Cash payback
No dealer-fee markup.
15 to 19 years
Financed payback
With typical dealer fees.
REFERENCE PAGES
Four pages walk the Castle Rock diagnostic
- 01 Is it worth it? → Diagnostic: how to know if your Castle Rock home is a good fit for solar, and what to verify before signing. Real production numbers, current rates, no inflated assumptions.
- 02 Typical cost and payback → Sized for a Castle Rock median home, with CORE Electric Cooperative-adjusted production from NREL PVWatts and current Standard retail-rate net metering + Solar*Rewards production incentive rates.
- 03 Incentives → Solar*Rewards values plus CORE Electric Cooperative programs. Federal credit context after the December 2025 expiration.
- 04 How to pick an installer → Educational buyer's guide for Castle Rock: red flags, what to verify, questions to ask before signing.
UTILITY CONTEXT
Most of Castle Rock is served by CORE Electric Cooperative. Net metering, rate trajectory, and program timing differ by utility, the Colorado state hub covers the cross-utility picture.