SolarCostMath
Programmatic Solar Performance Guide

Tesla Powerwall 3 Battery ROI & Payback Estimator

Calculate payback horizon for Tesla Powerwall 3 (13.5 kWh) using 30% Federal Tax Credit and peak evening rate arbitrage.

System ROI Summary

The 13.5 kWh Tesla Powerwall 3 qualifies for the 30% Federal IRA Tax Credit, reducing net installed cost from $11,500 down to $8,050. Discharging stored solar energy during peak evening hours shaves 7.1 years off payback.

Calculate Your Specific ZIP Code Sun Hours

Input your monthly electric bill, system cost, and state rate to calculate custom payback and 30% ITC savings.

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