MyPowerSetup, the Czech solar-sizing calculator

Why it surfaced

It asks about autonomy, season, appliances, cable distance, roof dimensions, alternator charging, and mains charging before explaining its recommendation. The site also promises transparent assumptions, printable results, and no registration—more engineering worksheet than black-box sales funnel.

A free Czech-language calculator that sizes batteries, solar panels, inverters, and controllers for caravans, cabins, and backup power.