Is Solar Worth It in Colorado? 2026 Guide

Published April 20, 2026  ·  10 min read  ·  Part of our Solar by State series

Colorado is an interesting solar market. The sun resource is excellent: Denver averages around 5.5 peak sun hours per day, and parts of the Western Slope and San Luis Valley exceed 6.5. That is substantially better than the states we have covered on the East Coast. But electricity rates have historically been low, which means the per-kilowatt-hour savings from solar are smaller than in a state like Massachusetts or New York.

What changes the calculation in 2026 is trajectory. Colorado rates have risen faster than the national average, up 62% since 2014, and Xcel Energy, which serves most of the Denver metro area and surrounding regions, has filed for another major rate increase. A solar system you install today becomes more financially valuable every year as rates climb.

This guide covers the full incentive picture, utility programs, net metering rules, and what realistic payback periods look like for Colorado homeowners in 2026.

A note on the federal tax credit

Many solar guides and installer websites still describe a 30% federal solar tax credit as available. It is not, for homeowners who purchase their systems directly. The Section 25D Residential Clean Energy Credit was repealed by the One Big Beautiful Bill Act, signed July 4, 2025. The IRS confirms the credit is not available for systems placed in service after December 31, 2025.

There is one nuance worth understanding: homeowners who finance solar through a lease or power purchase agreement (PPA) can still benefit indirectly from a 30% credit. The third-party company that owns the system claims the commercial Section 48E Investment Tax Credit and may pass those savings through as a discounted rate. Colorado allows solar leases and PPAs, so this is a legitimate financing path. But if you buy a solar system in Colorado in 2026, whether with cash or a loan, there is no federal tax credit to claim on your personal tax return.

Colorado solar incentives in 2026

Sales tax exemption

Colorado exempts solar energy equipment from the state sales and use tax (approximately 2.9%). This exemption applies automatically at the point of purchase for qualifying solar components used to produce alternating current electricity. On a $28,000 system, the state portion of the sales tax exemption saves roughly $800.

One important detail: this exemption generally applies to state-administered special district taxes, but it does not automatically apply to city and county sales taxes unless those jurisdictions have adopted a local exemption. Home-rule cities may have different rules. Confirm the full sales tax treatment with your installer before finalizing your quote. Your actual savings may be higher or lower depending on where you live.

Property tax exemption

Colorado provides a full property tax exemption for the added value that a solar installation creates. If your solar system increases your home’s assessed value by $20,000 to $30,000, which is typical, that added value is not included in your property tax assessment. Without this exemption, a home assessed at $450,000 that increases to $475,000 after solar would owe additional property taxes each year. The exemption eliminates that ongoing cost for the life of your system.

This is a meaningful ongoing benefit that tends to be underappreciated in payback calculations. Confirm with your county assessor that the exemption applies in your jurisdiction, as some details can vary at the local level.

Colorado Residential Energy Storage Tax Credit

Colorado offers a 10% state income tax credit on the cost of qualifying home battery storage systems, available through tax year 2026. The system must be installed in a residential property in Colorado and have a minimum usable capacity of 3 kWh. The credit is claimed using Colorado Form DR-1307 with your state income tax return for the year the system is installed.

For example, a $10,000 battery installation generates a $1,000 state tax credit. A Tesla Powerwall 3 typically runs $10,000–$14,000 installed, putting the credit at $1,000–$1,400. This stacks with any utility rebates available in your area and is a real incentive if you are considering adding storage.

This credit applies to the battery equipment only, not to your solar panels. If you are adding solar and storage together, the credit covers the storage portion of the project cost. Consult a tax professional to confirm eligibility for your specific installation.

Xcel Energy Solar*Rewards

If you are an Xcel Energy customer, which includes most of the Denver metro area, Boulder, Fort Collins, Colorado Springs, and surrounding communities, you have access to the Solar*Rewards program, one of the most distinctive utility incentive programs in the country.

Solar*Rewards pays you approximately $0.02 per kilowatt-hour for every kilowatt-hour your solar system produces: not just what you export, but all production. In exchange, Xcel receives the Renewable Energy Certificates (RECs) associated with your system’s output. The program runs on a 20-year contract term, and as of 2026 it remains open for new enrollments.

For a typical 8 kW system in Denver producing approximately 11,000–12,000 kWh per year, Solar*Rewards pays roughly $220–$240 per year. Over 20 years, that totals approximately $4,400–$4,800 in additional income, not a transformative number, but it meaningfully shortens your payback period and stacks on top of standard net metering savings. Your installer handles the application as part of the interconnection process; you do not need to file separately.

Note that by enrolling in Solar*Rewards you transfer your RECs to Xcel. For most homeowners this is the right financial choice. The residential REC market in Colorado is not liquid enough for individuals to sell RECs at a better rate independently.

Xcel Energy income-qualified programs

Xcel also offers more substantial incentives for income-qualified customers and those in disproportionately impacted communities. The Solar*Rewards Onsite Income Qualified and Disproportionately Impacted Community (IQDIC) program provides upfront per-watt rebates, in some cases up to $1/watt, that can dramatically reduce installation costs. If you are at or below a certain income threshold or live in a designated community, check Xcel’s Solar*Rewards program page and the IQDIC map to see if you qualify. Funding for these programs moves quickly.

Other utility and local programs

Colorado’s incentive landscape varies significantly by utility and city. Some notable programs for non-Xcel customers:

• Holy Cross Energy (Roaring Fork Valley, Eagle County, western Colorado) offers upfront per-watt rebates for solar installations. Rates vary by system size, and the program’s structure changed for new applications as of April 1, 2026. Holy Cross also offers separate incentives for customers adding battery storage.
• Fort Collins Utilities offers rebates for residential solar customers. The city has one of Colorado’s most active renewable energy programs and participates in EnergySmart Colorado, which provides additional rebates depending on your location.
• Denver CARes (Denver Climate Action Rebates) offers rebates for Xcel customers who reside in the City of Denver, including up to $2,000 for solar when combined with a functioning heat pump. Check the Denver CARes program page for current availability and requirements.
• Black Hills Energy customers in southern Colorado have access to net metering and some rebate programs, though the incentive stack is generally less robust than Xcel’s territory.
• EnergySmart Colorado is a nonprofit that partners with local utilities and governments to offer rebates ranging from $400 to $3,000 for qualifying solar installations, depending on your location and income. Worth checking if you are in a partner community.

Because Colorado’s incentive picture is highly utility-specific, your final incentive stack can look very different depending on where you live. Always confirm current program availability directly with your utility and installer before signing a contract. Several programs have limited budgets that close when funding runs out.

Colorado electricity rates and utilities

Colorado’s average residential electricity rate is approximately $0.15/kWh as of early 2026, below the national average of roughly $0.18/kWh. That said, rates have been climbing faster than the national average, and the gap is narrowing.

• Xcel Energy (Public Service Company of Colorado) is by far the largest utility in the state, serving roughly 1.6 million customers in the Denver metro area, Boulder, Fort Collins, Pueblo, and parts of Colorado Springs. Xcel has implemented four rate increases since 2020 and filed for a nearly 10% additional increase effective August 2026. Xcel uses time-of-use (TOU) pricing as the default for residential customers with smart meters, with on-peak hours from 5–9 p.m. on non-holiday weekdays year-round. Customers can opt out and choose a flat rate. On a blended basis, Xcel’s average residential rate is approximately $0.14–$0.15/kWh in early 2026.
• Black Hills Energy serves southern Colorado including Pueblo (in part), Canon City, and surrounding areas. Black Hills uses a tiered rate structure: approximately $0.12/kWh for the first 500 kWh per month, then $0.16/kWh above that. Unlike Xcel, TOU pricing is opt-in rather than the default.
• Colorado Springs Utilities (CSU) is a municipal utility serving Colorado Springs and immediate surroundings. CSU administers its own rate schedules and net metering program outside of state PUC jurisdiction. Rates are approximately $0.12–$0.14/kWh. CSU offers a Renewable Energy Rebate for residential rooftop solar.
• Rural electric cooperatives, including CORE Electric Cooperative (formerly Intermountain Rural Electric Association) serving Castle Rock, Parker, and parts of the southern Denver suburbs, and United Power serving much of northern Denver’s suburbs, serve large geographic areas at rates generally similar to or slightly above Xcel’s. CORE’s 2026 rates run approximately $0.115/kWh plus a significant monthly service charge. Both CORE and United Power are in the process of breaking away from Xcel’s generation system, which may affect future rates and renewable programs.

Net metering in Colorado

Colorado law requires all investor-owned utilities (Xcel and Black Hills) to offer net metering to residential solar customers. Municipal utilities and electric cooperatives are not required to offer net metering, but most of the larger ones do.

Under Colorado’s net metering policy, you receive a full retail-rate credit for every kilowatt-hour your solar system exports to the grid, the same rate you pay to buy power from your utility. Credits accumulate in a “Solar Bank” and roll over month to month. At the end of each calendar year, you can either bank remaining credits indefinitely or request a cash payout at Xcel’s average hourly incremental cost (AHIC) rate, which is substantially below the retail rate. Most homeowners choose to bank credits rather than cash out.

Xcel allows net-metered systems sized up to 120% of your previous 12 months of electricity usage. For most residential customers this means systems up to roughly 10–12 kW qualify at standard Level 1 interconnection. Larger systems require a more involved review process.

Black Hills Energy’s net metering program has slightly different rollover rules, and excess kWh credits are paid out at a more generous rate at year end than Xcel’s cash-out rate, which can benefit customers with large annual surpluses.

One important point: Colorado has held full retail net metering longer than most states, but this policy is not guaranteed permanently. States like California have already moved away from full retail crediting. Homeowners who go solar now lock in the current policy terms for the life of their interconnection agreement. Waiting carries regulatory risk on top of paying higher electricity bills in the meantime.

Sun resource and typical system performance

Colorado’s sun resource is one of the best in the continental US. Denver averages approximately 5.5 peak sun hours per day, meaningfully above the national average of 4.5. The Eastern Plains run slightly lower at 5.0–5.5, while the Western Slope, San Luis Valley, and areas around Grand Junction can reach 6.5 or higher.

Unlike states in the Northeast, Colorado does not need to compensate for poor sun resources with high electricity rates. The combination of good sun and moderately-priced electricity produces reasonable payback periods without relying heavily on the incentive stack.

A typical 8 kW system in the Denver area produces approximately 10,500–12,000 kWh per year. The average Colorado household uses around 8,000–9,000 kWh annually, meaning a well-sized system can cover most or all of your electricity needs while generating Solar*Rewards payments on full production.

Colorado’s altitude and dry climate provide an additional benefit: solar panels operate more efficiently in cooler, clear conditions than in humid heat. Panels produce slightly more power per rated watt in Colorado’s high-altitude, low-humidity environment than in states like Florida or Texas.

System costs and payback in 2026

Solar installation costs in Colorado are close to the national average. As of early 2026, typical residential installation costs run approximately $2.80–$3.00 per watt before incentives. A common 8 kW system runs $22,400–$24,000 before any savings.

Here is what incentives look like for a standard Xcel Energy customer in Denver purchasing a system outright:

• State sales tax exemption (~2.9%): saves approximately $650–$700
• Federal tax credit: $0 (expired December 31, 2025)
• Xcel Solar*Rewards: approximately $4,400–$4,800 over 20 years ($220–$240/year)
• Net cost after upfront savings: approximately $21,700–$23,350 (property tax exemption adds ongoing value but no upfront reduction)

At Xcel’s current average rate of roughly $0.15/kWh, an 8 kW system producing 11,000 kWh per year avoids approximately $1,650 in annual electricity costs. Adding Solar*Rewards income of approximately $220–$240 per year brings annual savings to roughly $1,870–$1,890. That puts the payback period for a cash purchase at approximately 11–13 years before accounting for rate increases.

The rate increase picture materially changes this calculation. Every kilowatt-hour your system produces avoids power at whatever the current retail rate is, meaning your savings grow every year rates go up. With Xcel’s proposed 10% rate hike for August 2026 already filed, and four prior increases since 2020, the effective payback period accounting for rate escalation is meaningfully shorter than the simple calculation suggests. At a modest 4% annual rate increase, payback on an 8 kW system can shorten to 9–10 years.

Income-qualified customers with access to Xcel’s IQDIC upfront rebates, or homeowners in Denver who qualify for the Denver CARes rebate, can see the net system cost drop substantially and payback periods shorten to 7–9 years.

Should you add battery storage?

Battery storage is not financially essential in Colorado the way it is in a state without net metering. Because full retail-rate net metering gives you credit for exports at the same rate you pay for power, you do not lose significant value by sending excess solar to the grid during the day and buying it back at night.

The financial case for storage in Colorado depends primarily on the incentives available to you. Xcel’s Renewable Battery Connect program, which offered upfront rebates of up to $5,000 for qualifying storage installations, closed as of February 20, 2026, with the possibility of reopening mid-2026. Check Xcel’s website for current program status before making a decision. The Colorado 10% state tax credit for battery equipment (through 2026) is available regardless of utility territory and provides a meaningful offset on the cost.

For homeowners in Holy Cross Energy territory, the distribution flexibility battery incentive program has offered up to $500–$12,500 depending on which rate tariff you enroll in. Confirm current program terms directly with Holy Cross, as the structure changed in early 2026.

The practical case for storage in Colorado is primarily about resilience. Colorado’s mountain and foothills communities experience significant weather-related outages: heavy snow, ice storms, and high-wind events. A battery keeps essential loads running during outages in a way that solar-only systems cannot. If you live in a wildfire risk zone, Xcel’s Public Safety Power Shutoff (PSPS) Battery Rebate offers up to $10,000 for customers enrolled in the Medical Certification Program in Tier 2 or Tier 3 wildfire risk areas. That is a specialized but very meaningful incentive for qualifying households.

Xcel’s battery participation program allows the utility to dispatch a portion of your stored energy during peak grid events. The enrollment requirement means Xcel can use up to 60% of battery capacity during control events up to 60 times per year over a five-year period. Homeowners can un-enroll without penalty, though doing so before the end of the term may affect rebate clawback. Review the current program terms carefully before enrolling.

Installer and interconnection responsibilities

Knowing who handles what prevents delays and surprises during your installation.

• Your installer is responsible for: system design and engineering, pulling all required permits from your municipality, submitting the interconnection application to your utility, handling any Solar*Rewards or rebate program paperwork, coordinating the utility-side inspection, and activating the system once Permission to Operate (PTO) is granted. For income-qualified program applications, your installer should initiate the paperwork on your behalf.
• You are responsible for: choosing a qualified installer (for Xcel programs, installers must be NABCEP-certified for Solar*Rewards eligibility), ensuring your roof is in good condition before installation, signing the interconnection agreement and Solar*Rewards contract with Xcel (if applicable), choosing your net metering credit option (continuous rollover vs. annual cash-out with Xcel), filing Form DR-1307 with your state return if you added battery storage, and notifying your homeowner’s insurance provider.
• Your utility is responsible for: reviewing and approving the interconnection application, installing or upgrading the bi-directional meter, conducting the utility-side inspection, and activating net metering on your account.

Interconnection timelines in Colorado vary by utility. Xcel’s interconnection process for standard Level 1 residential systems (under 10 kW) typically takes 6–10 weeks from application to Permission to Operate. Fort Collins Utilities and most co-ops are similar. Confirm a current timeline estimate with your installer based on recent projects in your area, as processing times vary by season and utility queue depth.

Bottom line: Is solar worth it in Colorado in 2026?

Yes, for most homeowners who own their property and have a suitable south- or west-facing roof. Colorado’s sun resource is excellent, full retail net metering is strong, and the Solar*Rewards production incentive adds meaningful long-term income for Xcel customers. The absence of a broad state income tax credit makes Colorado’s upfront incentive picture less compelling than states like New York or Massachusetts, but the sun hours largely compensate for that gap.

The most important variable in Colorado’s solar math right now is rate trajectory. Xcel has filed for a nearly 10% rate increase for August 2026, and the utility has signaled that ongoing infrastructure investments will require additional increases in coming years. Every dollar of rate increase makes the savings from your solar system larger. Homeowners who lock in a system today are effectively hedging against that risk for 25 years.

The main things to know going in: the federal ITC is gone, some utility programs have closed or changed recently (Xcel’s Renewable Battery Connect, Holy Cross program changes), and the incentive picture is heavily utility-dependent. Make sure any quote you receive reflects 2026 conditions, not outdated federal credit assumptions.

Get at least three quotes from NABCEP-certified installers, ask each one to provide a written 25-year savings projection using Xcel’s current rates and a conservative rate escalation assumption, and verify that their numbers do not include a federal tax credit.