Solar in Evanston: What Homeowners Should Know
Evanston sees an average of 5.1 peak sun hours per day, which is what ultimately determines how much electricity a rooftop system produces here. A standard 8 kW system (about 20 panels) generates roughly 11,914 kWh each year in Evanston — and paired with Wyoming's local electricity rate of $0.115/kWh, that's where the savings come from.
At those numbers, a Evanston homeowner saves about $114/month ($1,370/year). Against a $23,200 system cost, that works out to a payback of about 16.9 years, after which the system produces essentially free power for two decades — an estimated $23,598 in lifetime savings. Note: the 30% federal tax credit expired at the end of 2025 for purchased systems, though a solar lease or PPA can still pass it through. The local grid is served by Rocky Mountain Power WY, whose net metering policy directly affects how much credit you earn for surplus power.
Cost & Savings Breakdown
Based on a standard 8 kW system in Evanston
25-Year Savings Projection
Utility & Net Metering
Available Incentives
Choosing a Solar Installer in Evanston
- 1.Get at least 3 quotes. Prices in Wyoming vary widely between installers — comparing bids on the same 8 kW system is the fastest way to avoid overpaying.
- 2.Confirm Rocky Mountain Power WY interconnection experience. An installer who regularly files with your local utility will move your permit and net-metering paperwork through faster.
- 3.Check licensing & the warranty. Look for NABCEP-certified installers and a workmanship warranty of 10+ years on top of the standard 25-year panel warranty.
- 4.Size for your actual usage. With 5.1 sun hours/day in Evanston, make sure the proposed system matches your kWh history — not just your roof space.
Common Questions
How much does solar cost in Evanston?
Solar in Evanston, Wyoming costs approximately $23,200 for a 8 kW system. The 30% federal tax credit expired December 31, 2025 for purchased systems, though solar leases and PPAs can still pass it through.
What is the solar payback period in Evanston?
The estimated payback period for solar in Evanston is 16.9 years for a standard 8 kW system, based on local sun hours of 5.1 hrs/day and a rate of $0.115/kWh.
Is solar worth it in Evanston?
For most Evanston homeowners, yes. With 5.1 peak sun hours per day and an electricity rate of $0.115/kWh, a typical system saves $1,370 per year and around $23,598 over 25 years after paying for itself in 16.9 years.
How many solar panels do I need in Evanston?
A standard 8 kW home solar system is about 20 panels, producing roughly 11,914 kWh per year in Evanston at 5.1 sun hours/day. Your exact size depends on your household's electricity use.
Does Rocky Mountain Power WY offer net metering?
Rocky Mountain Power WY offers Full Retail net metering. Full retail rate.