Solarpunk

I don't know if it will be great for actually helping out with the climate crisis, but there's probably a lot of asteroids, moons and other stuff out there in space which we may come to need in the future, and effective space travel and navigation would be preferable so that when or if that time comes, we don't wind up like the aliens in the District 9 movie.

Using solar and lithium storage to power a space station could allow energy usage for running heavy machinery in a confined space. Think of the Vikings, leverage, rudders and rowboats.