Will everything be solar powered

Answer 1

Yes, if we can find a better way of harnessing energy from the Sun. The big problem with solar power energy is that it doesn't work at night, so you have to store the energy somehow. But if we can figure it all out, we'll have a clean, safe, and almost unlimited supply of electricity for our whole lifetime.

Meantime we can use electricity from other kinds of renewable energy (wind, water, hydro, tidal and wave, geothermal, ocean thermal, biomass, biofuel and hydrogen).