Colorado solar leads

Solar resource in Denver

The PVWatts calculator, developed by NREL and now operated by the National Laboratory of the Rockies, models how much solar energy reaches a panel in a typical weather year. Denver is Colorado’s largest city in the Census Bureau’s July 1, 2025 estimates, and PVWatts gives it 5.67 kWh per square meter per day (checked October 9, 2026).

Method in one line: the calculator’s version 8 default array, fixed on an open rack, pointed due south and tilted 20 degrees, placed at Denver’s point in the Census gazetteer and run on the National Solar Radiation Database typical year. Roof pitch, shading and orientation change the number for any real house, so it works as a yardstick between places rather than a production estimate.

Colorado net metering under PUC Rule 3664

The Colorado Public Utilities Commission sets net metering for investor-owned utilities in Rule 3664 of its electric rules, 4 CCR 723-3; the version in the Code of Colorado Regulations took effect June 14, 2026 (checked October 9, 2026). A customer’s renewable system qualifies when it is sized to supply no more than 120% of the customer’s average annual electricity use at the site and its rated capacity does not exceed the home’s service entrance capacity.

Paragraph (b) covers months when the system produces more than the home uses. The extra kWh roll forward from month to month and offset later use one for one. Within 60 days after the calendar year ends, or after service ends, the utility pays for any credits still banked at its average hourly incremental cost of supply for the year. A customer may instead make a one-time written election to keep rolling the credits forward for as long as service continues, with no payout at the end.

The rule also requires a single meter that reads in both directions, installed at the utility’s expense when the existing meter cannot do so, and paragraph (i) opens net metering to separately metered multi-unit buildings and common interest communities. For an installer, the 120% ceiling in Rule 3664 (as of October 9, 2026) ties system size to the household’s past bills, so a usage history is part of a Colorado quote.

Colorado detached houses and owner households

Most residential solar goes on single-family houses whose owners can sign for it. The Census Bureau’s table B25024 (ACS 5-year 2020-2024) counts 1,590,419 single-family detached homes among Colorado’s 2,589,053 housing units, or 61.4%; 34 states have a higher detached share. In table B25032, 1,292,591 of the state’s 1,571,735 owner-occupied homes are detached houses, which is 82.2%.

The age and value of Colorado homes are covered on Colorado window replacement leads, and the fuels Colorado households heat with are on Colorado HVAC leads; this page does not repeat them.

Putting the Colorado figures together

Read side by side, the sections above describe fast growth in rooftop systems, a utility rule that links system size to past use, and a board that keeps track of who installs. A Colorado solar buyer might take three things from them:

• Growth was one of the faster rates among large solar states. Small-scale capacity rose 21.6% between July 2025 and July 2026 in the EIA estimates, so a growing share of Colorado homes already has a system to add to or maintain.
• Sizing starts with the bills. Under Rule 3664 (version effective June 14, 2026), a net metered system may supply up to 120% of average annual use, so installers ask for a year of usage early.
• Owner houses dominate outside Denver. Nine of the ten counties in the table have detached shares of owner homes above 78% in the 2020-2024 ACS, which a buyer can use when it picks ZIP codes along the Front Range.

These points describe Colorado housing, installed solar and state rules. They do not estimate how many solar leads exist in the state or in any county.

Request Colorado solar leads

Email us the Colorado ZIP codes you cover, your daily volume or caps and how you take delivery. ReturnReturnA buyer's request for credit on a lead that fails agreed standards, such as a disconnected number, a duplicate or a lead outside the filters. Glossary terms are agreed on the onboarding call, before you go live.