• 0 Posts
  • 8 Comments
Joined 2 years ago
cake
Cake day: June 21st, 2023

help-circle




  • heftig@beehaw.orgtoGreen Energy@slrpnk.netElements of Renewable Energy
    link
    fedilink
    English
    arrow-up
    3
    ·
    edit-2
    10 months ago

    Well, Wikipedia claims

    The Earth has an internal heat content of 1031 joules (3×1015 TWh), About 20% of this is residual heat from planetary accretion; the remainder is attributed to past and current radioactive decay of naturally occurring isotopes.

    In that sense, it’s the only renewable energy source we have that’s not indirectly powered by the sun. It’s most similar to (proper) nuclear power, but the latter isn’t “renewable” because it requires digging up fuel from the crust.