Hi @marcsclz welcome to Hive. I'm @palomap3 from Lovesniper OCD team.
Hive is a universe full of possibilities where everyone can find their place beyond cryptocurrencies. It is difficult to understand at first, but it is worth the effort to explore and try. I invite you to start by visiting the Hive Motors community. And you'll find energy efficiency ideas in Homesteading, check the pinned post.
Tips and information as a Hive newbie here: newbie guide.
Communities you might like that are part of the OCD Communities Incubation Program. Important: read their rules and post in the one that fits your content.
Have a good day!