Energy in All Its Forms

Primary energy

All energy sources that have not undergone any conversion process and remain in their natural...

Go to definition

refers to natural energy “sources”, including fossil fuels such as

coal

Coal is ranked by its degree of transformation or maturity, increasing in carbon content from...

Go to definition

, oil and natural gas, and low-carbon energy sources such as nuclear and

renewable energy

Energy sources that are naturally replenished so quickly — sometimes immediately — that they ...

Go to definition

that emit little-to-no CO₂. Renewable energy comes from sources like hydro, solar, wind,

geothermal

Describes the technology used to tap subsurface heat to produce energy. Low-temperature geoth...

Go to definition

,

biomass

In the energy sector, biomass is defined as all organic matter of plant or animal origin, inc...

Go to definition

and waste, and have the advantage of never running out. Primary energy sources are converted into

secondary energy

Secondary energy is energy produced by converting so-called primary energy, or energy availab...

Go to definition

and energy carriers, which are easier for humans to use. Examples include

electricity

Form of energy resulting from the movement of charged particles (electrons) through a conduct...

Go to definition

,

heat

In the field of statistical thermodynamics today, heat refers to the transfer of the thermal ...

Go to definition

, fuel and

hydrogen

The simplest and lightest atom, the most abundant element in the universe.

Go to definition

.