Wind, hydro, ….
Discussion
Sure but hydro can’t be used everywhere. Also wind is just affordable if you build big wind turbine’s. Another problem is that not all people are excepting living near a wind turbine.
That’s why Bitcoin is so beautiful.
You can build a full installation at a place where there is no demand for electricity. Normally nobody would use this excess energy because you cannot transport it. But now with Bitcoin you can convert excess clean energy to a monetary value.
Think about it. Read about it. You’ll realize this can solve a lot of the environmental & energy problems in the world