Geothermal power: Drill 2–4 km into hot fractured rock Hot water (150–350°C) rises up production well Flash separator: high-pressure water → steam Steam drives turbine → generator → electricity Cooled water reinjected → replenishes reservoir

 

The Earth's core is 5,500°C.

And we're drilling into it
to generate electricity. Forever.

Geothermal power:
Drill 2–4 km into hot fractured rock
Hot water (150–350°C) rises up production well
Flash separator: high-pressure water → steam
Steam drives turbine → generator → electricity
Cooled water reinjected → replenishes reservoir

And it never stops:
No fuel cost
No weather dependence (unlike solar/wind)
24/7 baseload power
Near-zero CO₂ emissions
Iceland generates 30% of electricity this way

Binary cycle plants work at even lower temperatures —
using isobutane instead of steam — opening most of the world to geothermal.

The oldest energy source on Earth.
We're only just learning to use it properly.