Electrical power

Electricity is a type of energy that gives us heat and light and drives machines. To be useful, electricity must be made to flow in a current. In 1831 the British scientist Michael...

Electrical power A-Z

Nuclear power

Nuclear energy is the energy contained by an atom, due to the strong force that holds together the protons and neutrons in its nucleus. There are two ways of releasing nuclear...

Fusion power

Scientists are coming closer to harnessing the energy created by nuclear fusion and using it to generate electricity. The challenge is produce more energy than is used to make the...

Renewable energy

Renewable energy comes from natural resources that are constantly replenished. These resources include rivers, oceans, wind, sunlight, geothermal heat and biomass (material from...

Space-based solar power

Space-based solar power (SBSP) technology involves collecting energy from the Sun in space by satellites and transferring it down to Earth using microwave beams. The technology...

Hydrogen power

A flammable gas, hydrogen can burn in air, and therefore be used as a fuel. Hydrogen that is extracted from water by electrolysis—when this process is powered by renewable...