Plain-language help for homeowners who are a few weeks away from requesting quotes — wherever you live. Start with a calculator, or read a short chapter, then get quotes when you are ready.
Model solar and batteries for your home, see estimated bills and savings, then connect with local installers — free, no obligation.
Estimate what solar and a battery could save on your power bill for your country and usage.
Work out what size solar system and battery suit your home — adjust usage to see a recommended range.
More tools: Solar & battery designer · Panel placement · VPP calculator · V2G · EV charging · Electrification · Off-grid load table
Indicative system prices, rebates, net cost, savings and payback side-by-side for every published country page.
Why FiTs fell, why payback often still works, and how batteries and VPPs change the story.
“Is solar worth it?” is the most common question homeowners ask us — and the honest answer is: usually yes, but with big caveats that depend on your electricity use, your local tariffs, and whether you add a battery. This …
Not every house is an equally good candidate for solar. Roof orientation, tilt, shade, usable area, and structure all affect how much energy a solar system will actually generate — and how quickly it’ll pay for itself. This chapter walks …
The right-sized solar system for your home depends on how much electricity you use, when you use it, and whether you plan to add a battery or an EV. The sizing calculator below recommends a starting range for your home …
Next waves
Until each chapter is expanded for a global audience, you can read the original long-form version we built with Clean Energy Reviews: Clean Energy Reviews — Solar Energy Guide.
When you have a rough idea of size and savings, compare no-obligation offers from installers in your area.
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