My answer would be battery (or chemical), generator, and solar. Not sure what your context is.
If you are asking about what's used in power plants, like coal, nuclear, and...I guess oil/natural gas would be the third, those are just different sources of heat to produce steam that turns a steam turbine. In all these cases it's still a generator.
Electricity is generated by three main sources: chemical reactions in batteries, the movement of electrons in conductive materials, and electromagnetic induction in generators by rotating magnets within a magnetic field.
Electricity generation.
The Peoples Republic of China has three main sources for its electricity. They are: 1. fossil fuels ( allot of air pollution ); 2. hydroelectric power; and 3. nuclear power.
Electricity generation.
The three main milk sources for cheese in France are cows, goats and sheep.
water wind fossil fuils
there are three natural sources of electricity water, wind and sun or hydel power, wind power and solar energy
Gas and oil, Nuclear, and Hydro These are the main energy sources.
The two main sources of energy gas and electricity.
A= The three main sources are coal, petroleum and natural gas. Source - Wikipedia HOPE THIS HELPED!
the main sources of power used in pakistan are petroleum oilfields oil refineries natural gas electricity hydroelectricity thermal power nuclear power coal
The main source of energy that powers the sphere is electricity. This electricity can be generated from various sources such as fossil fuels, nuclear power, renewable energy sources like solar and wind, or even from batteries. The specific source of electricity depends on the location and infrastructure of the sphere.