Tools

Free Solar PV Calculators & Sizing Tools

Interactive calculators and utilities to help you get more from your solar installation. All tools are free — no sign-up required.

Solar PV performance is measurable. Use these tools to identify the best times to discharge stored battery energy, estimate arbitrage returns by market, and understand the real-world cost of each charge-discharge cycle against your battery's rated cycle life. More tools covering panel sizing, soiling loss, and MPPT configuration are in development.

Calculator

Battery Sell Hours

Find the best hours to discharge your battery into the grid based on day-ahead electricity market prices. Covers 10+ countries and seasonal profiles.

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