Other renewable energy

There is more renewable energy than just solar PV and wind. There is also:

  • Solar thermal (allows storage, requires cloud-less sky)
  • Geothermal (beyond our capabilities)
  • Hydro power
  • Wave power
  • Tidal power
  • Biogas (methane from bacterial fermentation of organic products)
  • Biofuel (wide range from wood chips to vegetable oil and agricultural waste products; there can be issues with emissions or competition with natural cycles or food production)

Nuclear energy is NOT renewable energy, with the exception of one big and safe fusion reactor: the sun!

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