Imo one of the examples of renewables that someone needs to push (and I don't care who, whichever team does it takes the win) is geothermal in hawaii. They import massive amounts of coal to generate 90% of their electricity and thus have some of the most expensive electricity in the US.

Easy win, it would make everyone on the islands life way better, and of course it isn't even on the radar because it wouldn't cost that much and it'd be really effective immediately.