Solar Panels in Houston, TX

Q: How many solar panels do I need in Houston?

With 5 peak sun hours/day, a home using 11111 kWh/month needs about 232 panels (92.8 kW) with 400W panels.

Q: How much do solar panels cost in Houston?

Average cost in Houston is $2.58/watt. A 92.8 kW system costs ~$239,424 before 30% ITC, or ~$167,597 after.

Q: What is the solar payback period in Houston?

At $0.135/kWh, solar pays back in about 9.2 years. 25-year net savings: ~$289,678.

Q: What solar incentives are available in Houston?

Federal ITC + property tax exemption. Always verify with your installer and the DSIRE database.

Houston gets 5 peak sun hours/day with electricity at $0.135/kWh. Calculate panels needed, cost after 30% ITC, and payback period.

Sun Hours

5/day

Rate

$0.135/kWh

Cost/Watt

$2.58

Net Metering

Varies by utility

☀️ Houston Solar Calculator

Monthly Usage11,111 kWh

Panels

232

System Size

92.8 kW

Annual kWh

135,488

Net Cost

$167,597

Savings/yr

$18,291

Payback

9.2 yrs

25-Yr Savings

$289,678

System Sizes in Houston

Monthly kWh	Panels	kW	Net Cost	Savings/yr	Payback
500	11	4.4	$7,946	$867	9.2 yrs
750	16	6.4	$11,558	$1,261	9.2 yrs
1,000	21	8.4	$15,170	$1,656	9.2 yrs
1,500	32	12.8	$23,117	$2,523	9.2 yrs
2,000	42	16.8	$30,341	$3,311	9.2 yrs
2,500	53	21.2	$38,287	$4,179	9.2 yrs

Solar Guide for Houston (2026)

Houston at latitude 29.76°N receives 5 peak sun hours/day. At $0.135/kWh, solar offers solid long-term savings.

Incentives: Federal ITC + property tax exemption.

NEC Solar Requirements

All installations must comply with NEC Article 690: rapid shutdown (690.12), conductor sizing at 125% (690.8), and proper grounding per NEC 250. Use our Solar Wire Size Calculator for conductor sizing.

Disclaimer: Estimates only. Consult a licensed solar installer. NEC Article 690 compliance required.