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Watt Hour Ledger explains Working out a daily energy budget in watt-hours for a small off-grid setup, so you can size what you need in plain English.

Each page is written from public sources, such as makers' manuals, government pages and other reference material, and lists the sources it relies on at the bottom. Pages show the date they were last reviewed.

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Information here is general. Always follow the instructions that came with your own gear or materials, and get a qualified person where the law or safety calls for one.