Utility Bill Review
You got a solar proposal. Now get the truth.
Upload your utility bill or solar proposal and get an instant, unbiased analysis — free. See what solar should actually cost for your Colorado home.
Drop your solar proposal here
PDF from Sunrun, Vivint, Freedom, or any installer
Your files are analyzed securely and deleted immediately after. We never store your documents.
How Much Does Solar Cost in Colorado?
Here's the short answer, based on Q1 2026 Colorado market data. No form to fill out.
| System Size | Typical Home | Cost Range (installed) | $/Watt |
|---|---|---|---|
| 6 kW | Small — 1,200 sq ft, $80-120/mo bill | $15,000 – $19,200 | $2.50 – $3.20 |
| 8 kW | Medium — 1,800 sq ft, $120-170/mo bill | $20,000 – $25,600 | $2.50 – $3.20 |
| 10 kW | Large — 2,400 sq ft, $170-230/mo bill | $25,000 – $32,000 | $2.50 – $3.20 |
| + Battery | Any size (13.5 kWh typical) | +$10,000 – $15,000 | — |
What "installed" means: equipment, labor, permitting, interconnection — everything before you flip the switch. These are cash prices. The federal 30% ITC expired Dec 2025 — if a quote still shows it, that's a red flag.
The range matters: A $2.50/W quote from a local crew and a $3.20/W quote from a national brand can both be legitimate. The difference is usually sales overhead, not panel quality. What matters is whether your quote is fair for what you're getting.
Got a quote in hand? Upload it and we'll tell you exactly where it falls.
Built for Colorado Homeowners
We model your actual Xcel rate schedule including TOU-R on-peak and off-peak periods.
Colorado law (C.R.S. 39-1-104) exempts solar from property tax. We calculate your savings.
The federal 30% ITC expired Dec 2025. We show real costs, not inflated savings with expired credits.
Colorado SB 23-258 changed net metering rules. Our analysis uses the current reduced credit rates.
How It Works
Upload
Drop your Xcel Energy bill or solar proposal PDF. Takes 5 seconds.
Analyze
Our AI reads your bill, models your roof with Google Solar API, and runs NREL production estimates.
Compare
Get an honest report: your current costs, solar savings, battery ROI, and TOU rate impact — in 60 seconds.
Why Trust This Tool?
We don't sell solar. We don't earn commission. We use NREL production data, actual Xcel Energy rates, and real Colorado pricing to grade your proposal on what matters.
Your solar ROI depends on your Xcel rate plan, Colorado's new net metering credit rates, and the property tax exemption. Generic calculators miss all of this. We don't.
3% rate escalation (Colorado historical average), 0.5% panel degradation, no expired tax credits. We underestimate savings, not overestimate.
Solar companies spend $3,000-6,000 per customer on sales. That cost gets baked into your price. Better-informed homeowners make the whole industry more efficient.
Reading your document...
Frequently Asked Questions
Why is this free? What's the catch?
Solar companies spend $3,000-6,000 per customer on sales and marketing — and that cost gets built into the price you pay. We built this tool to make the solar buying process more efficient. When homeowners understand fair pricing, they make decisions faster. That efficiency creates value we can build a business around. There's no catch: we don't sell your data and we'll never pressure you to buy anything.
What happens to my documents?
Your files are analyzed in real-time and deleted immediately after. We never store your utility bills or solar proposals. The only thing we keep is your email (if you choose to share it) so we can send your report.
How accurate is the analysis?
We use real data from Google's Solar API for your specific roof, NREL's PVWatts for production estimates, and current equipment pricing. Our savings projections use conservative 3% annual rate increases — not the inflated 5-6% some installers assume.
Does the federal solar tax credit still exist?
The residential Section 25D Investment Tax Credit expired December 31, 2025. If an installer is still quoting you a 30% tax credit, that's a red flag. Our analysis accounts for this — we show you what solar really costs without phantom credits.
What utilities do you support?
Our AI can read bills from any US utility — ComEd, Xcel Energy, Duke Energy, PG&E, SCE, and hundreds more. Upload any electric bill PDF and we'll extract your usage, rates, and charges automatically.
Does Colorado have a solar property tax exemption?
Yes. Under Colorado law (C.R.S. 39-1-104), solar energy systems are 100% exempt from property tax assessment. Adding solar panels will not increase your property taxes. Our analysis calculates the annual value of this exemption for your system size.
How does Xcel Energy net metering work now?
Colorado's SB 23-258 (2024) changed net metering for new solar customers. Instead of full retail credit for excess solar energy, you now receive a reduced credit rate (roughly 75% of retail). Our tool models these updated rules so your savings estimate is realistic.
Should I get a battery with solar in Colorado?
It depends. With Xcel's TOU-R rate schedule, batteries can earn money through rate arbitrage (charging at 8¢/kWh off-peak, discharging at 20¢/kWh on-peak). They also provide backup during Colorado winter storms. Our analysis models battery economics including degradation over time so you can make an informed decision.
Should I choose Xcel's flat rate or TOU rate with solar?
Solar produces most energy during midday, which falls in Xcel's off-peak TOU period. Without a battery, flat rate often yields better solar savings. With a battery, TOU can be more profitable because the battery arbitrages the peak/off-peak spread. Our analysis compares both scenarios.
I already got 3 quotes. Why do I need this?
Three quotes tell you what three companies charge. They don't tell you what solar should cost for your home, whether the production estimates are realistic, or how the financing terms compare to market rates. Think of us as the ruler that measures all your quotes against objective benchmarks — NREL production data, actual Colorado pricing, and real Xcel Energy rates.
Will you try to sell me solar after I use the tool?
No. If your analysis shows you have a good deal, we'll say so and you can move forward with your current installer. If you want to explore other options, we can connect you with vetted Colorado installers — but only if you ask. We will never cold-call you or share your information without your permission.
What if my proposal is actually fine?
Then we'll tell you that. Many proposals we analyze are fairly priced. When that happens, you get the confidence to move forward without second-guessing. That's just as valuable as catching a bad deal.