Definitions for "Energy Source"
object or material that produces energy by changing it from one source to another
Any substance or natural phenomenon that can be consumed or transformed to supply heat or power. Examples include petroleum, coal, natural gas, nuclear, biomass, electricity, wind, sunlight, geothermal, water movement, and hydrogen in fuel cells.
The initial generation source of the energy used to illuminate a feature for a remote sensing system. For many systems this is the sun, however, some remote sensing systems utilize an artificial energy source.
Keywords:  supply, available
a supply of energy that is available for use