About

We explain balcony solar, portable power stations and home batteries with measured data and official sources, and compare prices in the UK, the euro area and Switzerland.

Curator and editor: Svetozar Kolesar. Yield data comes from PVGIS of the European Commission. Rules pages show the date they were last checked and what is not yet confirmed.

Some texts and the assistant use AI (Anthropic Claude). AI output is marked. We earn money from affiliate links and the personal report; prices are always sorted by price, never by commission.