Solar Panels in San Antonio, TX
San Antonio gets 5.3 peak sun hours/day with electricity at $0.125/kWh. Calculate panels needed, cost after 30% ITC, and payback period.
Sun Hours
5.3/day
Rate
$0.125/kWh
Cost/Watt
$2.55
Net Metering
CPS Energy buyback
☀️ San Antonio Solar Calculator
11,200 kWh
Panels
221
System Size
88.4 kW
Annual kWh
136,808
Net Cost
$157,794
Savings/yr
$17,101
Payback
9.2 yrs
25-Yr Savings
$269,731
System Sizes in San Antonio
| Monthly kWh | Panels | kW | Net Cost | Savings/yr | Payback |
|---|---|---|---|---|---|
| 500 | 10 | 4.0 | $7,140 | $774 | 9.2 yrs |
| 750 | 15 | 6.0 | $10,710 | $1,161 | 9.2 yrs |
| 1,000 | 20 | 8.0 | $14,280 | $1,548 | 9.2 yrs |
| 1,500 | 30 | 12.0 | $21,420 | $2,321 | 9.2 yrs |
| 2,000 | 40 | 16.0 | $28,560 | $3,095 | 9.2 yrs |
| 2,500 | 50 | 20.0 | $35,700 | $3,869 | 9.2 yrs |
Solar Guide for San Antonio (2026)
San Antonio at latitude 29.42°N receives 5.3 peak sun hours/day. At $0.125/kWh, solar offers solid long-term savings.
Incentives: Federal ITC + CPS Energy rebate + 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.
Frequently Asked Questions
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Solar Calculator by City
New York City
3.6 hrs · $0.225/kWh
Los Angeles
5.6 hrs · $0.28/kWh
Chicago
3.9 hrs · $0.155/kWh
Houston
5 hrs · $0.135/kWh
Phoenix
6.6 hrs · $0.138/kWh
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3.9 hrs · $0.162/kWh
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5.7 hrs · $0.35/kWh
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5.1 hrs · $0.13/kWh
Austin
5.2 hrs · $0.125/kWh
Denver
5.5 hrs · $0.148/kWh
Miami
5.3 hrs · $0.148/kWh
Atlanta
4.7 hrs · $0.135/kWh
Seattle
3.2 hrs · $0.115/kWh
Boston
3.8 hrs · $0.27/kWh
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6.4 hrs · $0.13/kWh
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3.5 hrs · $0.13/kWh
Minneapolis
4 hrs · $0.145/kWh
Tampa
5.4 hrs · $0.142/kWh
Charlotte
4.7 hrs · $0.128/kWh
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5 hrs · $0.3/kWh
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3.5 hrs · $0.185/kWh
Nashville
4.4 hrs · $0.125/kWh
Salt Lake City
5.3 hrs · $0.115/kWh
Raleigh
4.7 hrs · $0.125/kWh
Sacramento
5.5 hrs · $0.25/kWh
Orlando
5.3 hrs · $0.145/kWh
San Jose
5.3 hrs · $0.3/kWh
Tucson
6.4 hrs · $0.135/kWh
Albuquerque
6.2 hrs · $0.14/kWh
See also: Solar in Texas