Scrooge McDuck space adventure where he fights an alien despot from an energy oriented economy

This comic book was published in Spain between 1976 and 1980 and was probably a work of Disney’s Italian studio. Might be a work by Romano Scarpa.

There is a planet where energy has replaced money. People (anthropomorphic ducks, of course) who can’t pay their taxes are forced to generate energy on big wheels. The planetary ducktator owns a "Money Bin" with a huge amount of giant cylindrical batteries similar to AAA pocket batteries.

He learns that there is a duck on Earth as rich as he is and sends a challenge to Uncle Scrooge. Their spaceships meet in space and blast each other with energy. Scrooge has a boiler in his ship that converts money into energy. Eventually, Scrooge wins the battle by adding to the money in the boiler plans for humanitarian aid to underdeveloped nations.