Low-tech Magazine was born in 2007 and has seen minimal changes ever since. Because a website redesign was long overdue — and because we try to practice what we preach — we decided to build a low-tech, self-hosted, and solar-powered version of Low-tech Magazine. The new blog is designed to radically reduce the energy use associated with accessing our content.
Batteries, solar panels (the ones that they have), and their server (which is just a small raspberry pi) could all probably be shipped in an average sized box. Don’t take my word for it though, the owner has worked through this mentally as well:
How sustainable is a solar powered website?