Tools

Energy calculators

Quick, interactive calculators built on Joule Post reporting — no sign-up, everything runs in your browser.

• Battery Storage Cost Calculator

  Estimate the turnkey cost of a grid-scale battery storage project from its power capacity, duration and region, using BNEF 2025 benchmark rates.

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• Solar Output Calculator

  Estimate annual solar generation, homes powered and CO2 avoided for a solar project from its installed capacity and regional capacity factor.

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