Solar Energy Glossary

In a photovoltaic device, the material that readily absorbs photons to generate charge carriers (free electrons or holes).

 A dopant material, such as boron, which has fewer outer shell electrons than required in an otherwise balanced crystal structure, providing a hole, which can accept a free electron

The period of time, at a specified temperature, that a charged battery can be stored before its capacity falls to an unusable level.

The voltage(s) at which a charge controller will take action to protect the batteries.

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