Solar in Plano: What Homeowners Should Know
Plano sees an average of 5.5 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 12,848 kWh each year in Plano — and paired with Texas's local electricity rate of $0.128/kWh, that's where the savings come from.
At those numbers, a Plano homeowner saves about $137/month ($1,645/year). Against a $22,000 system cost (about $21,000 after Texas state incentives), that works out to a payback of about 12.8 years, after which the system produces essentially free power for two decades — an estimated $35,174 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 Oncor, 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 Plano
25-Year Savings Projection
Utility & Net Metering
Available Incentives
Choosing a Solar Installer in Plano
- 1.Get at least 3 quotes. Prices in Texas vary widely between installers — comparing bids on the same 8 kW system is the fastest way to avoid overpaying.
- 2.Confirm Oncor 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 5.5 sun hours/day in Plano, make sure the proposed system matches your kWh history — not just your roof space.
Common Questions
How much does solar cost in Plano?
Solar in Plano, Texas costs approximately $22,000 for a 8 kW system, or about $21,000 after state incentives. 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 Plano?
The estimated payback period for solar in Plano is 12.8 years for a standard 8 kW system, based on local sun hours of 5.5 hrs/day and a rate of $0.128/kWh.
Is solar worth it in Plano?
For most Plano homeowners, yes. With 5.5 peak sun hours per day and an electricity rate of $0.128/kWh, a typical system saves $1,645 per year and around $35,174 over 25 years after paying for itself in 12.8 years.
How many solar panels do I need in Plano?
A standard 8 kW home solar system is about 20 panels, producing roughly 12,848 kWh per year in Plano at 5.5 sun hours/day. Your exact size depends on your household's electricity use.
Does Oncor offer net metering?
Oncor offers Avoided Cost net metering. Wholesale rate.