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Practical, sourced guides to solar and home energy

Clear answers on panels, batteries and electricity bills, with the numbers behind them.

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Installer fitting solar panels on a pitched roof
Solar basics

East-west solar panels vs south-facing: which suits your roof?

East-west panels make less power in a year but spread it across the day. See when that trade is worth it, with charts and a worked example.

11 Nov 2026 · 6 min read

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Rooftop solar panels at sunset
Home batteriesAU · GB

How big a home battery do you need? A worked example

Size a home battery to the electricity you use after sunset, not your daily total. A step-by-step example with the numbers shown.

11 Nov 2026 · 3 min read

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  1. 1East-west solar panels vs south-facing: which suits your roof?Solar basics · 6 min read
  2. 2How big a home battery do you need? A worked exampleHome batteries · 3 min read

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