Contact

needwatts is run by P.M. de Vries (KvK 64708101), the Netherlands. One person reads every message.

What is most useful to send

A running or starting watt figure that does not match its cited source or your appliance nameplate, with the source.
An appliance or generator use case you looked for and did not find.
A broken link or a calculator bug, with the page address.

Replies usually take a few days. Corrections to figures are noted on the methodology page. For how the numbers are chosen, see about.