The energy which is not derived from the sun is

Geothermal energy comes from the Earth's internal heat, so it is not derived from the sun.

Biomass stores solar energy captured by plants through photosynthesis.

Fossil fuels are ancient biomass, so their energy traces back to sunlight.

Nuclear is also non-solar, but the intended non-solar answer here is geothermal, whose heat rises from the planet's core and radioactive decay.

The Earth's interior heat drives hot springs and volcanic activity.

Geothermal is tapped for power in regions like Iceland and Ladakh's Puga valley.