Energy is a topic of great importance for today's society. Subjects like solar energy, hybrid vehicles, nuclear power,
and renewable energy appear frequently in news reports, and politicians around the world are faced with important decisions that will affect our sources of energy into the future. The “Energy Fundamentals” website provides an overview
of the basic ideas related to the concept of energy. Basic physical principles are explained, and some historical background is provided, along with discussion of energy-related technology. The website is meant to be understandable
to readers with some high school knowledge of the sciences.

The pages are organized according to the following topics:

Definition of the word "energy"
Einstein’s equivalence of energy and mass
Units of energy
Daily energy needs
Mechanical energy
Thermal energy
Electrical energy
Energy of electric and magnetic fields
Chemical energy
Batteries
Nuclear energy
Heat engines
Heat pumps
Fuel cells
Physics of wind turbines
Solar cells
Solar thermal energy
Environmental risks
Supplies of fossil and nuclear fuels
Methane hydrates
Potential of renewable energy