Contact us for a complimentary energy audit
Contact us for a complimentary energy audit
CORE Electric Cooperative (formerly IREA) is a member-owned utility serving Castle Rock and much of Douglas County. CORE offers 1:1 net metering for systems up to 10 kW AC, with annual production capped at 200% of your 12-month usage. Year-end excess is paid at CORE’s Self-Generation Buyback rate. Average payback with net metering is approximately 10.6 years. Current rates are about $0.12/kWh — competitive, but the cooperative’s member advocacy around rate increases has been a driving factor in solar adoption.
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Castle Rock homeowners benefit from CORE’s 1:1 net metering for systems up to 10 kW AC, with production capped at 200% of annual usage. Colorado’s sales and property tax exemptions apply, and the cooperative’s member-owned structure gives you a direct voice in rate decisions. CORE requires its own interconnection agreement, with a typical 60-day approval process. Apollo manages the full application. The surge in Castle Rock solar installations means CORE’s process is well-established and efficient.
Castle Rock homeowners are increasingly adding battery storage in response to rate pressures and grid resilience concerns. While CORE’s rates are competitive, the cooperative’s members have been vocal about potential rate increases — battery storage provides both cost management and backup protection.
Apollo understands CORE’s cooperative structure and designs systems optimized for the 10 kW net metering threshold and 200% production cap. We’ve helped Castle Rock homeowners navigate CORE’s interconnection process and maximize their return.
CORE is a member-owned cooperative, not a shareholder-driven corporation. That means you have a direct voice in rate decisions and utility policy. Nearly 9,600 members have already gone solar, which shows how the cooperative model supports renewable energy adoption.
CORE’s standard net metering applies to systems up to 10 kW AC. Most residential systems fall within this range. If your energy needs require a larger system, we’ll work with CORE to determine the best approach for your situation.
CORE’s interconnection approval typically takes about 60 days. With the surge in Castle Rock solar installations, the process is well-established and efficient. Apollo manages the full application so you don’t have to deal with the paperwork.
Apollo Energy proudly serves homeowners and businesses as the leading solar company in Castle Rock, CO. Whether you’re looking for residential solar panels, battery storage, or commercial solar solutions, we’re here to help you transition to solar energy.
Feel free to reach out to us anytime. We're here to help!
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