Colorado
Colorado solar in 2026
Colorado solar is not short on policy labels. Xcel Energy customers can combine net metering with Solar Rewards REC payments. The state protects the property-tax treatment of qualifying renewable systems and exempts renewable components from sales and use tax. The quieter development is interconnection: HB26-1225 pushes back on early cost demands and forces larger utilities into an interconnection working group.
In Colorado, keep bill savings, REC income, and tax treatment separate
The base case begins with retail bill offset, then branches by roof and utility territory. A Solar*Rewards REC payment is a separate stream. So is the state's tax treatment. Folding them into one flattering payback number hides what can actually change.
| Energy source | Type | Average price | What that means |
|---|---|---|---|
| Colorado residential utilities | Grid electricity | 16.16¢ for each kWh | EIA's preliminary statewide residential measure for May 2026. |
| Colorado home gas service | Natural gas | $11.92 per Mcf delivered | May 2026 household data from EIA, equivalent to about 3.9 cents per thermal kWh. |
| Homeowner rooftop system | Solar production | ~6.3¢ per generated kWh | Twenty-five-year cost calculation using EnergySage state pricing and PVGIS output. It excludes a REC payment and any tax benefit. |
EIA's Table 5.6.A is the May 2026 electricity reference. The Colorado residential gas series is available from EIA natural gas prices, also May 2026. One Mcf is roughly 304 kWh of thermal energy. View the solar calculation method.
Colorado sun varies by city, not by sales territory
Pueblo comes in well above Denver in our model. That is a meaningful difference and a reminder that state averages are a planning aid, not a permit-ready production report. Use the local yield in the proposal and save the statewide figure for context.
| Production location | kWh generated by one kW yearly | Yearly output, 11.46 kW installation |
|---|---|---|
| Denver | 1627.6 | 18,652 kWh |
| Colorado Springs | 1689.5 | 19,362 kWh |
| Grand Junction | 1641.7 | 18,814 kWh |
| Pueblo | 1750.2 | 20,057 kWh |
Method: PVGIS v5.2 model runs by Solar Learning Lab on August 18, 2026, using the NSRDB radiation database. Assumptions: fixed roof mount, south facing, 30 degree tilt, 14 percent losses. Your roof will differ.
Net metering is still useful, but interconnection is the work
Colorado cooperative net metering sits in statute. For Xcel Energy customers, Solar Rewards pays for renewable energy credits alongside net metering, with a published example of $0.005 per kWh. That is not a reason to overstate value. It is a distinct payment that should be shown separately in the cash-flow model.
The live operational issue is delay and unexpected interconnection cost. HB26-1225 bars utilities from requiring payment of interconnection costs more than 30 days in advance. It also requires utilities with more than 500,000 customers to convene an interconnection working group by August 15, 2026. Ask the installer who owns the queue, what is due when, and what happens if the utility asks for changes.
Xcel Solar Rewards FAQ provides the REC example. HB26-1225 covers the interconnection reform. C.R.S. 40-9.5-118 sets co-op net metering.
Colorado incentives are protective, not a cash rebate
| Item | Value | Fine print |
|---|---|---|
| Xcel Solar Rewards REC | $0.005 per kWh example | Paid alongside net metering for participating customers (Xcel FAQ) |
| Property and sales tax treatment | Exemption available | Renewable property exemption and sales/use-tax exemption under Colorado Division of Property Taxation and C.R.S. 39-26-724 |
| Residential 25D provision | No longer available after December 31, 2025 | Lease and PPA businesses may still claim 48E and can pass through part of that value in pricing (CRS) |
Colorado's consumer risk is often hidden in the interconnection timeline
HB26-1225 aims at a cost that rarely appears in a bright brochure: the timing of interconnection payment. The measure bars a utility from requiring that payment more than 30 days in advance. It also requires a utility with more than 500,000 customers to convene an interconnection working group by August 15, 2026. That does not produce a solar rebate. It gives a homeowner a concrete process question when a project is stuck.
Utility territory still separates the analysis. Cooperative net metering is addressed in C.R.S. 40-9.5-118. Xcel Energy's Solar*Rewards FAQ gives a renewable-energy-credit example of $0.005 per kWh alongside net metering. Treat that example as its own line in the cash flow, rather than inflating the avoided-bill figure with a different payment stream.
Colorado's property-tax exemption for residential renewable energy and its sales and use tax exemption for renewable components can matter, but neither has a verified dollar amount that belongs in every quote. Counties and municipalities may offer additional credits or rebates under §30-11-107.3 and §31-20-101.3. Availability must be established locally before it becomes a savings claim.
The state had 4,508 MW installed, ranked 14th nationally, and solar accounted for 11.84% of electricity through Q1 2025. The system can be healthy at the state level while an individual proposal is weak on queue responsibility. Ask who files, who follows up, and who carries a utility-requested revision.
Colorado's solar-rights statute supplies a second practical check. C.R.S. 38-30-168 makes a covenant that effectively prohibits or restricts a renewable energy generation device void and unenforceable, while allowing reasonable aesthetic limits on dimensions, placement, or appearance. A homeowner should still obtain the association's rules before finalizing the layout. Xcel's parent served approximately 3.9 million electric customers as of mid-2025, which is why its process carries statewide weight.
Colorado General Assembly's HB26-1225 page states the timing and working-group requirements. C.R.S. 40-9.5-118 covers co-op net metering. Colorado's renewable-energy property-tax guidance lists the exemptions, and SEIA's Colorado profile provides the state deployment figures.
Model the roof, then ask where the REC goes
The calculator does not assume a REC-payment term, because the cited material gives the per-kWh example but not a universal duration. Treat its result as a starting point, then have the proposal separately show net-metering savings, REC proceeds, tax treatment, and any interconnection charge.
Colorado's elevation and geography show up in the PVGIS range. A Pueblo roof should not be sold using a Denver yield assumption.
Cash quotes in Colorado cluster near $2.66 per watt, against a $3.50 national 2024 median (LBNL). Use your quote.
Assumptions you can change
Use the rate on your actual lease or PPA quote. There is no published statewide average we trust enough to hardcode.
Cash purchase
$11,970 after state credit
- Year 1 benefit
- $102/mo
- Payback
- 10 years
- 20 year net position
- $17,624
No state income-tax credit is modeled. Xcel Solar*Rewards can add a REC payment, while Colorado's property and sales tax exemptions protect the purchase without inflating a rebate claim.
Solar loan
$156/mo 15 yr payment
- Year 1 net
- -$55/mo
- Upfront
- $0
- 20 year net position
- $1,491
We price loans at $3.86 per watt, the EnergySage cash figure plus the $1.20 per watt LBNL loan-over-cash spread.
Lease / PPA
$0 down you buy the power
- Year 1 net
- -$49/mo
- Upfront
- $0
- 20 year net position
- -$12,245
A lease or PPA provider can claim the federal 48E business credit. Ask how the contract treats the Solar*Rewards REC payment and net-metering credits.
Estimates, not quotes. Inputs use the Colorado average rate from EIA, our PVGIS production runs, and EnergySage August 2026 cost data. Utility territory and REC enrollment are not modeled. We are a solar installer and we also partner with other solar companies. See our disclosures.
Colorado actions that beat generic advice
- Ask whether your project is Xcel, co-op, municipal, or another territory before a net-metering promise is made.
- Make the installer list the expected interconnection timeline and who pays if a utility revision is required.
- Colorado voids covenants that effectively prohibit renewable generation devices, subject to reasonable aesthetic limits (C.R.S. 38-30-168).
- Use a city-specific production model. Pueblo and Denver should not receive the same annual-output guarantee.
Colorado installers to put through the same process
Use multiple bids. The best comparison is not a headline price per watt. It is an identical equipment scope, realistic production model, named utility process, and a clear statement of whether REC participation changes the deal.
Photon Brothers
Broomfield, CO
4.7(489 Google reviews)
Namaste Solar
Longmont, CO
4.8(325 Google reviews)
Detach Reset Solar
Centennial, CO
4.8(442 Google reviews)
SunPower (Denver)
Denver, CO
4.2(954 Google reviews)
SunPower (Colorado Springs)
Colorado Springs, CO
4.3(519 Google reviews)
Ratings snapshot: Google Maps, August 2026, via the DataForSEO SERP feed. Zero companies paid us and none are endorsed by us. Verify the contractor's applicable Colorado license before you sign.
Get a Colorado estimate that separates each value stream
We are a solar installer and we also partner with other solar companies. Details in our disclosures.
What does your monthly electric bill look like?
Colorado average is $101 per month (EIA, 2024).