Skip to content
RoofQualify

Solar in Adams County, CO

Solar panels in Thornton, CO

5.2 peak sun hours per day. See what the data says about Thornton, then check your specific roof free.

Utility territory: Xcel Energy (Public Service Co. of Colorado)

Local context

What limits Thornton roofs

Thornton averages 5.2 peak sun hours per day in the regional data. Roof orientation, usable area, and shade can reduce production further for an individual property.

Solar data for Thornton

Peak sun hours / day
5.2 hrs

Modeled annual average.

Typical system size
5–9 kW

Residential, based on typical household load.

Estimated first-year savings
$1,200–$2,200

Per year for a typical 5–9 kW system. The high end assumes the larger array.

Roofs suitable for solar
68–80%

Modeled from regional adoption data.

Primary utility
Xcel Energy (Public Service Co. of Colorado)

Contact your utility for current net billing enrollment status.

Net metering / billing
Net Billing (RCP)

Xcel/PSCo (Public Service Co. of Colorado) offers full retail net metering: retail-rate bill credits for the energy you send back, with excess either rolling forward continuously at retail or cashed out yearly at the lower avoided-cost rate — a system sized to your annual usage earns close to full retail value.

Estimates use the average Colorado current utility rate (before solar) of $0.15/kWh (EIA, retrieved Aug 2026) and modeled solar production; individual results vary with your rate, usage, roof orientation, and shading.

Personalized estimate

Estimate your first-year solar savings

Start with your bill or adjust the rate and typical system size for Thornton.

kW

Typical homes: 5–9 kW.

$/ kWh

Prefilled with the state residential average.

Estimated first-year savings

$1,700/ yr

$1,200–$2,200/yr for a typical 5–9 kW system — the low end is a smaller array, the high end a larger one.

Estimate — individual results vary with your rate, usage, roof orientation, and shading. Assumes an 85% system derate and 100% self-consumption; exported energy uses the local net-billing estimate.

City averages are a starting point — check your address for your verified result.

Frequently asked questions

How much sun does Thornton get for solar?

Thornton receives approximately 5.2 peak sun hours per day on average, based on modeled regional data.

What is the estimated first-year savings from solar in Thornton?

For a typical 5–9 kW system in Thornton, first-year savings are estimated at $1,200–$2,200 per year: the low end uses the smaller system, while the high end is up to the larger system. Estimates use the average Colorado current utility rate (before solar) of $0.15/kWh (EIA, retrieved Aug 2026) and modeled solar production; individual results vary with your rate, usage, roof orientation, and shading. These are educational estimates, not guarantees.

What can limit solar production in Thornton?

Thornton averages 5.2 peak sun hours per day in the regional data. Roof orientation, usable area, and shade can reduce production further for an individual property.

Data source: City figures are modeled estimates for general guidance — not a quote for any specific property.

Ready to check your roof in Thornton?

The city data above is a regional estimate. Enter your address to get a personalized result based on your actual roof.

Solar data for nearby Colorado cities

View all cities