Solar Panels in San Antonio, TX
San Antonio gets 5.3 peak sun hours/day with electricity at $0.125/kWh. Calculate panels needed, installed cost, and payback period (updated for 2026 — no federal credit).
☀️ San Antonio Solar Calculator
System Sizes in San Antonio
| Monthly kWh | Panels | kW | Installed Cost | Savings/yr | Payback |
|---|---|---|---|---|---|
| 500 | 10 | 4.0 | $10,200 | $774 | 13.2 yrs |
| 750 | 15 | 6.0 | $15,300 | $1,161 | 13.2 yrs |
| 1,000 | 20 | 8.0 | $20,400 | $1,548 | 13.2 yrs |
| 1,500 | 30 | 12.0 | $30,600 | $2,321 | 13.2 yrs |
| 2,000 | 40 | 16.0 | $40,800 | $3,095 | 13.2 yrs |
| 2,500 | 50 | 20.0 | $51,000 | $3,869 | 13.2 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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See also: Solar in Texas