Battery Analysis

Battery Storage ROI & Payback Analyzer

See exactly how much value a home battery adds to your solar system — with state-specific NEM policy analysis, TOU rate optimization, and incentive-adjusted payback calculations.

Your Details

State *

ZIP Code *

Monthly Electricity Bill ($) *

Solar System Size (kW) *

1–25 kW

Scenario Comparison

Annual costs and savings across three scenarios

Scenario	Annual Cost	Annual Savings	Payback (Years)

Battery Value

Annual Battery Value

Standard

—

With VPP

—

Payback Period

Standard

—

With VPP

—

Payback After Incentives

Standard

—

With VPP

—

Self-Consumption Boost

—

Your State NEM Policy

Policy

—

Export Rate

—

Netting Period

—

TOU Required

—

Demand Charges

—

Monthly Breakdown

Solar Production Consumption Grid Import

Ready to Add Battery Storage?

Get multiple quotes from certified battery installers in your area and compare real pricing side-by-side.

Get Battery Quotes

Enter your state, ZIP code, monthly bill, and solar system size above, then click "Calculate Battery ROI" to see your personalized battery storage analysis.

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Find VPP programs in your state

Now that you know how much you could earn, find actual Virtual Power Plant programs with enrollment links, compensation details, and eligibility requirements.

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NEM expiring? Calculate your timeline

Find out when your net metering grandfathering ends and how much your savings will drop — before it's too late.

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Compare specific models in our Best Home Batteries 2026 review

Spec-verified comparison of the Powerwall 3, Enphase IQ Battery 10C, FranklinWH aPower 2, LG RESU 16H Prime, sonnenCore+, and EcoFlow OCEAN Pro.

Data sources: NEM policy data is manually curated from state regulatory filings and utility tariffs. Battery specs from manufacturer data sheets. Installed battery cost assumes ~$1000/kWh as of 2026-07-03 (EnergySage Marketplace installer quotes (updated Jul 13, 2026: typical install $15,647; $342–$3,505/kWh across ten most-quoted brands) · Tesla Powerwall 3 installed pricing (~$998/kWh) · BloombergNEF Battery Price Survey · LBNL Tracking the Sun). Actual savings vary by utility rate schedule, usage patterns, and installation factors.

For detailed incentive and policy information by state, visit the DSIRE Database.