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AIColorado Solarby Discovery Clean Energy

Why go solar

Shrink your electric bill

Yes, solar still lowers the electric bill for most Colorado homeowners who own a decent roof, but the payback is longer than the old sales pitches promised. The federal 30% homeowner credit (§25D) ended for systems finished after December 31, 2025, so a purchased system now has to earn its keep on bill savings alone. Whether it does depends less on your roof than on who your utility is and how it credits the power you send back.

01

The math after §25D

We price residential solar at roughly $2.80–$3.25 per watt installed. A 7 kW system therefore lands around $19,600–$22,750 before any local rebate. Until the end of 2025 a homeowner could knock 30% off that with the federal credit. As of September 2026 that credit is gone for owned systems, and anyone still quoting it is working from an old script.

Without the credit, simple payback on a purchased system in a full-retail net-metering territory often stretches into the low-to-mid teens of years, and longer where export credits are below retail. We won’t give you a single number here, because the honest answer swings with your usage, your roof’s orientation, your rate plan and how much of your production you use yourself versus export.

If you finance, the monthly loan payment has to be compared with the bill it replaces. With loans in the roughly 7.7–9% APR range we offer, some households come out ahead from month one and some don’t until the loan is paid off. We show both lines side by side rather than a blended “savings” number.

02

Your utility decides more than your roof does

Colorado has one of the most varied net-metering landscapes in the country. In most Xcel Energy territory, exports are credited kilowatt-hour for kilowatt-hour against what you buy, and unused credits roll forward. That 1:1 treatment is what makes a purchased system pencil out without a federal credit.

Elsewhere the rules are different. Longmont Power & Communications credits systems installed from 2025 onward at a value-of-solar rate below retail. Fort Collins Utilities credits exports at the time-of-day rate in effect when you export. Colorado Springs Utilities approved a restructure on September 22, 2026 that gives new solar customers either a daily fee with time-of-use credits or a demand charge. In those places the goal shifts toward using your own power, which is where a battery starts to earn a role.

03

Leases and PPAs: the one place federal value survives

A leasing company or PPA provider that owns the system can still claim the commercial §48E credit if the system is placed in service by the end of 2027, and some of that value shows up as a lower price. Our lease and PPA offers typically run 20–30% below the utility’s retail rate, with payments commonly in the $125–$240 a month range and an annual escalator of 0–3%.

That’s real savings with no money down, but read the escalator. A 3% escalator compounds; if utility rates rise slower than that over 20-plus years, your advantage narrows. A 0% escalator is simpler to reason about. We’ll put both in front of you along with a cash and a loan scenario.

04

When solar probably won’t pay you back

If your bill is already under about $60 a month, the fixed costs of a system are hard to recover. The same goes for heavily shaded lots, roofs that need replacing within a few years (unless you do both at once), and homes you expect to sell soon if you’d be paying cash.

We’d rather tell you that on the first call than sell you a system that disappoints. If the numbers are thin, a lease, a smaller system, or waiting are all legitimate answers.

Sources & dated facts

  • §25D residential clean energy credit terminated for expenditures made (installation completed) after 12/31/2025 under P.L. 119-21.As of Sep 23, 2026 · source

FAQ

Questions we hear

Is the 30% federal solar tax credit still available for my house?

Not for a system you buy. The §25D residential credit ended for systems whose installation was completed after December 31, 2025. If you had unused credit from an earlier installation, the carryforward can still be used. A third-party owner of a leased or PPA system can still claim a commercial credit if the system is in service by the end of 2027. This is as of September 2026; verify current terms with a tax advisor.

How long is the payback on solar in Colorado now?

It varies too much for one number. On full 1:1 net metering with a good south- or west-facing roof, purchased systems commonly pay back in the low-to-mid teens of years. Where exports earn less than retail, it runs longer unless you use more of your own production. Our savings calculator shows a range based on your utility’s rules.

Will solar get my bill to zero?

Rarely all the way. Most Colorado utilities keep a monthly customer charge you’ll pay regardless, and some add fees for solar customers. A well-sized system can offset most of your energy charges over a year, but winter months will usually still show a balance or draw down banked credits.

Does my utility matter more than my roof?

Often, yes. The same array produces similar kilowatt-hours in Denver and Longmont, but the dollars those kilowatt-hours are worth differ because Longmont credits post-2025 exports at a value-of-solar rate and Xcel generally credits them 1:1. That’s why we ask for your utility before we ask almost anything else.

What bill size makes solar worth looking at?

As a rough rule, households spending more than about $100 a month year-round on electricity have enough usage to make a system worth modeling. Below that, it can still work, but the margin is thin and a lease or waiting may be the better call.

Get honest numbers for your roof

Our Colorado crew looks up your utility’s current rules, models your roof, and tells you straight — including when solar or a battery won’t pay off.

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