Tesla Powerwall & Home Battery ROI Solver

Calculate your net battery installation costs after 30% Federal ITC Tax Credits, Time-of-Use rate arbitrage savings, and hours of continuous blackout backup.

⚙️ Battery Storage Specs & Utility Rates

Nameplate Usable Capacity Per Unit (kWh)

Number of Battery Units Installed

Installed Cost Per Unit (Before Tax Credits)

Time-of-Use (TOU) Rates & Critical Load

Peak Rate ($/kWh)

Off-Peak Rate ($/kWh)

Daily Depth of Discharge Cycling (%)

Emergency Blackout Continuous Load (Watts)

📊 Financial & Outage Backup Summary

Annual TOU Rate Arbitrage Savings

$1,025/yr

Net Cost (30% ITC) $8,050

Outage Duration 10.1 Hours

Payback Period 7.9 Yrs

30% Federal ITC Tax Credit $3,450 tax credit ($11,500 gross)

Emergency Grid Outage Duration 10.1 hours (0.4 days) continuous power at 1,200W

Daily TOU Utility Savings $2.81/day from 10.8 kWh daily peak arbitrage

Compare Battery Quotes

🔋 Compare Tesla Powerwall & Enphase Battery Installers

Get up to 3 competitive battery storage installation bids and check local utility virtual power plant (VPP) cash incentives.

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Blackout Ready

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EcoFlow DELTA 2 Max Portable Power Station (2048Wh LFP)

2400W AC output and expandable LiFePO4 battery chemistry with 10-year lifespan to power heavy home appliances.

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Jackery Solar Generator 1000 Plus with 100W Solar Panel

Fast 1.7-hour wall recharge with emergency off-grid solar recharge and whisper-quiet operation during blackouts.

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