Here is a link (updated February with English description) to an electronic circuit project load controller for battery voltage regulation. It’s by Antonio Cecere, who translated my windmill plans into Italian, and the controller project is also in Italian although the electronics are clear enough in any language.
Nice design. As you say it is clear in any language.
Antonio has sent an updated file with an English Abstract and this is now available from the link above. thanks, Antonio!
Hugh