1. Most of the world does not have fully renewable energy, and wasting energy just makes it harder to go full renewable.

2. Gold is used throughout the world for a variety of uses, and has been used as a store of value for years pretty much everywhere. Bitcoin is used to get a few people rich, and is actually used as a store of value pretty much nowhere. They aren't comparable.

1. I can think of a hundred things more useful than bitcoin that renewable energy could be used for.

2. Gold has uses other than propping up speculative markets. This is a false equivalence.