I'm afraid that #solarpunk is too western, white and focused on fiction to make a change. People prefer fetishizing #burningman aesthetics to noticing the real changemakers around the world.
Have you heard about http://globalinnovationgathering.org ? Its a network of hackers from Africa, Middle East, South America and Southeast Asia. They do things some solarpunk writers only imagine, but there is little interest in that in the West.