What are Earth's 2 energy sources?

Answer 1

Geothermal energy and Nuclear energy are possible candidates.

Though bear in mind that any element above Hydrogen was formed by atomic fusion inside a star, though possibly not inside our current sun, so the nuclear energy released as higher elements decay is stellar energy, if not solar.

Geothermal energy is from rocks heated by underground nuclear radiation, so ultimately its also stellar.

The star light that strikes the earth on a moonless night is enough energy to see by, and its certainly not from our own sun. But starlight is mainly decorative and with modern GPS navigation it not too useful other for a few midnight hikers and those Palestinian shepherds who watch their flocks by night. I think you may be safer with Nuclear and Kinetic as neither draws from the sun.

Answer 2

All sources of energy ultimately come from the ocean and the sun except for tectonic and volcanic energy.

Answer 3

sun and water