Solar in Houston: What Homeowners Should Know
Houston sees an average of 5.6 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 13,082 kWh each year in Houston — and paired with Texas's local electricity rate of $0.103/kWh, that's where the savings come from.
At those numbers, a Houston homeowner saves about $112/month ($1,347/year). Against a $22,000 system cost (about $21,000 after Texas state incentives), that works out to a payback of about 15.6 years, after which the system produces essentially free power for two decades — an estimated $25,024 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 Centerpoint Energy, 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 Houston
25-Year Savings Projection
Utility & Net Metering
Available Incentives
Choosing a Solar Installer in Houston
- 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 Centerpoint Energy 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 5.6 sun hours/day in Houston, make sure the proposed system matches your kWh history — not just your roof space.
Common Questions
How much does solar cost in Houston?
Solar in Houston, 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 Houston?
The estimated payback period for solar in Houston is 15.6 years for a standard 8 kW system, based on local sun hours of 5.6 hrs/day and a rate of $0.103/kWh.
Is solar worth it in Houston?
For most Houston homeowners, yes. With 5.6 peak sun hours per day and an electricity rate of $0.103/kWh, a typical system saves $1,347 per year and around $25,024 over 25 years after paying for itself in 15.6 years.
How many solar panels do I need in Houston?
A standard 8 kW home solar system is about 20 panels, producing roughly 13,082 kWh per year in Houston at 5.6 sun hours/day. Your exact size depends on your household's electricity use.
Does Centerpoint Energy offer net metering?
Centerpoint Energy offers Avoided Cost net metering. Wholesale rate.