SUMMIT Energy Solutions

Superior city reference

Solar in Superior, 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

Superior is a Boulder County town of about 13,100 residents along the US-36 corridor next to Louisville, served by Xcel Energy. A slim majority of housing is owner-occupied at roughly 60 percent, with a median home value near $739,200 and a median year built of 1996. A 7 kW system in Superior is modeled to generate about 1,511 kWh per installed kW, or roughly 10,577 kWh per year, under standard PVWatts assumptions.

Local numbers

The Superior baseline

A 7 kW south-facing system in Superior 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.

Utility context

The bill rules are local.

Most of Superior is served by Xcel Energy. Net metering, rate trajectory, and program timing differ by utility; the Colorado state hub covers the cross-utility picture.

Xcel Energy Boulder County Verified 2026-05-29