How much does an 800W–1200W plug-in solar kit save in Texas?

At Texas's average electricity rate of $0.16/kWh ($0.28/kWh peak) and 5.4 daily sun hours, an 800W–1200W system with LFP battery storage saves approximately $268 per year.

Texas Plug-in / Balcony Solar Calculator (1200W 2026 Guide)

2026 Legal Status: Zero-Export / Free-Nights TOU Arbitrage Ready · Avg Retail Tariff: $0.16/kWh (Peak: $0.28/kWh)

Interactive 2026 Engineering Tool

Plug-in / Balcony Solar ROI & Self-Consumption Calculator

ERCOT Zero-Export Mode + Retail Free-Nights Battery Arbitrage

Solar Array Wattage (W) — Legal Limit: 1200W

400W800 W1,600W

Electricity Rate ($/kWh Peak/Daytime)

Daily Peak Sun Hours (Texas Avg: 5.4 hrs)

Direct Self-Consumption % (With LFP Battery = 92%, Without Battery = 55%)

35% (No Battery)92%98% (With Smart Battery)

Complete Kit Cost ($)

Apply 30% Federal Clean Energy Tax Credit (IRC §25D — expires Dec 2032)

💰 Your 30% ITC Savings: $0 back on your federal taxes. Effective cost after credit: $0. Adjusted payback: 0 yrs.

Verified Yield & Payback Output

Annual Solar Output

1,380 kWh

Annual Bill Savings

$510/yr

Simple Payback Period

2.5 Years

10-Year Net Profit

$3,800

Texas Legal Verdict: Zero-Export / Free-Nights TOU Arbitrage Ready. In Texas (ERCOT), pairing plug-in solar + home batteries with Free Nights electricity plans or zero-export smart meters yields massive summer AC savings.