Louisville city reference
Solar in Louisville, checked against utility math.
A city-level guide for Boulder County homeowners comparing quotes, system size, incentive timing, and Xcel Energy billing assumptions.
- Reference ZIP
- 80027
- Utility
- Xcel Energy
- Focus
- Net metering + Solar*Rewards
Louisville is a Boulder County city of about 20,900 residents between Boulder and Broomfield, served by Xcel Energy. Owner-occupants hold roughly 69.8 percent of homes, the median home value is near $781,100, and the median year built is 1991. A 7 kW system in Louisville is modeled to produce about 1,511 kWh per installed kW, or roughly 10,577 kWh per year, per NREL PVWatts. Homeowners should confirm current Xcel net metering terms and request a site-specific production estimate before committing.
Local numbers
The Louisville baseline
A 7 kW south-facing system in Louisville produces about 10,600 kWh/year per NREL PVWatts. Pre-incentive install cost runs $18,900 to $21,000, with cash payback around 11 to 12 years before financing markup.
10,600 kWh/year
Annual production
PVWatts v8, 7 kW south-facing.
~$18,900 to $21,000
Net cash cost
After incentives, before financing.
11 to 12 years
Cash payback
No dealer-fee markup.
15 to 18 years
Financed payback
With typical dealer fees.
Diagnostic path
Check the Louisville quote from four angles.
Start with fit, then pressure-test price, incentives, and installer risk before a homeowner signs.
- 01 Is it worth it? → Diagnostic: how to know if your Louisville 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 Louisville median home, with Xcel Energy-adjusted production from NREL PVWatts and current Standard retail-rate net metering + Solar*Rewards production incentive rates.
- 03 Incentives → Solar*Rewards values plus Xcel Energy programs. Federal credit context after the December 2025 expiration.
- 04 How to pick an installer → Educational buyer's guide for Louisville: red flags, what to verify, questions to ask before signing.
Utility context
The bill rules are local.
Most of Louisville is served by Xcel Energy. Net metering, rate trajectory, and program timing differ by utility; the Colorado state hub covers the cross-utility picture.