Powerful Tools for Smarter Energy Decisions

Home Battery Planner

Size the perfect battery for your home and calculate its ROI.

Solar Economics Calculator

Estimate annual savings, break-even timing, and lifetime upside for a residential solar project.

Solar Project Planner

All-in-one flagship workbench for sizing solar PV arrays, modeling shading losses, export tariffs, and 25-year ROI.

Commercial Solar ROI Calculator

Estimate the ROI of a commercial solar installation.

Community Solar Calculator

Estimate your savings by subscribing to a community solar project.

Climate Economics

Levelized Cost of Energy (LCOE) Calculator

Calculate lifecycle $/MWh and ¢/kWh generation cost across solar, wind, storage, nuclear, and gas using discounted cash flow.

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Climate Economics

NEM 3.0 Impact Calculator

Analyze how Net Billing (NEM 3.0) affects your solar economics.

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Off-Grid Solar & Battery System Sizer

Size standalone off-grid solar PV arrays, battery bank Ah/kWh capacity, days of autonomy, MPPT charge controllers, and inverters.

Roof Solar Suitability Checker

Quickly assess if your roof is a good candidate for solar.

Solar & Battery Degradation Tracker

Model the long-term capacity loss of your solar and storage systems.

Solar Export Tariff Calculator

Calculate your earnings from exporting solar back to the grid.

Solar Inverter Size Calculator

Calculate the perfect inverter size.

Solar Lease vs Buy Calculator

Compare leasing versus buying solar.

Solar Loan Calculator

Calculate your monthly solar loan payments.

Solar Panel Output Calculator

Estimate the real-world daily output of a solar panel array.

Solar Panel Tilt Calculator

Optimize your solar panel tilt angle.

Solar Shading Loss Calculator

Estimate energy loss due to shading.

Solar System Size Calculator

Determine the ideal solar panel system size for your household.

Climate Economics

State-by-State Solar Payback

Estimate solar ROI factoring in state-specific incentives and SRECs.