The Solar-Rescue blog

Solar guides, explained

Plain-language articles on how solar systems work, what they cost and how to choose well. Filter by topic or search the list.

What size solar system do I need? A simple way to work it out

Daily energy, peak load, sun hours and backup time. Four numbers decide your panels, inverter and battery, and you can work them out yourself.

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Lithium vs lead-acid solar batteries: which is right for you?

Lead-acid looks cheaper on the quote. Over the life of the system, the answer is often different. Here is how to compare them fairly.

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7 things to check before you sign a solar quote

Two quotes can look similar and hide very different systems. Use this checklist to compare them like for like.

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Not sure where to start?

Run the load calculator to see what your home or business needs, then use the guides to understand each part.