Watching your Xcel Energy bill climb can be frustrating. For homeowners in Castlewood, rooftop solar offers a direct way to gain more control over long-term electricity costs. With Colorado's excellent solar resources and supportive state policies, installing panels can be a sound financial decision, even with the federal tax credit for homeowners no longer in effect for 2026 installations. The key is understanding how your system interacts with the grid under Xcel's rules.
From rates to ROI—continue in the savings calculator.
Open calculatorBenchmark Cost Analysis
How Much Do Solar Panels Cost in Castlewood?
In 2026, the estimated cost for a professionally installed 6.2 kW solar system in Castlewood is $17,050. This system is sized to cover the electricity needs of a typical home in the area.
- Solar Only Cost: $17,050, offering the fastest financial payback.
- Solar + Battery Cost: $32,050, including a 10 kWh battery for outage protection.
While a battery adds resilience, the solar-only option provides the best return on investment under current Xcel Energy net metering rules. An owned solar system may also support resale appeal, adding value beyond the immediate utility savings.
Incentives & Tax Credits
Key Colorado Solar Incentives (2026)
The financial model for solar in Castlewood relies on strong state-level support, not federal credits. Here are the primary benefits available:
- Full Property Tax Exemption: In Colorado, adding a solar system to your home does not increase its assessed value for property tax purposes. You get the benefits of solar without a higher tax burden.
- Sales and Use Tax Exemption: All equipment required for your solar installation is exempt from state sales tax, which lowers the total upfront cost of the system.
- Retail Net Metering: This is the most critical incentive. Xcel Energy must credit you at the full retail rate for any surplus energy you export to the grid, ensuring you get maximum value from your panels.
Net Metering: Public Service Co of Colorado
Retail Net Metering
Optional
How Net Metering Works in Castlewood
As an Xcel Energy customer, you benefit from Colorado's retail-rate net metering policy. This policy is a simple but powerful incentive. During the day, your solar panels often produce more power than your home needs. This excess energy flows out to the grid, and Xcel tracks it. At night, you draw power back from the grid. At the end of the month, Xcel bills you for your "net" energy consumption—the difference between the energy you used from the grid and the energy you sent to it. This 1-to-1 credit system is what makes solar financially attractive here.
Projected Savings
Projected Solar Savings with Xcel Energy
A 6.2 kW solar system is projected to save a Castlewood homeowner about $1,227 in the first year, effectively replacing an average monthly Xcel bill of around $122. Based on this, the estimated payback period is 11.5 years.
Solar is not only about today's bill. As utility rates fluctuate, producing your own power provides a hedge against future price increases. Every kilowatt-hour your panels generate is one you don't have to buy from the grid at tomorrow's potentially higher price.