3 ms·

Because they store energy as fat. Electric systems can't do that.

• mrtksn 4y ago
  In other words, they store the energy chemically. Interesting, maybe it is a clue how to make electric systems store energy when the sun isn't shining.
  • Findeton 4y ago
    It's just not scalable yet. That's the truth of the matter.
    • mrtksn 4y ago
      > yet There you go.
      • Findeton 4y ago
        Correct but that means that no, we can't go all renewable right now. It actually means that when you add renewable, you're still about 70-80% dependent on natural gas (or coal) because of the very intermittent nature of solar/wind energy. And hydroelectric energy is (mostly, as some ecologist will protest) great but not scalable.
    • bryanlarsen 4y ago
      Not yet, but we're pretty close. We need about 300TWh of energy storage to decarbonize the grid, and about 300TWh to convert all transportation to EV. We currently produce about 1TWh per year of batteries, and that capacity is doubling every 14 months or so.