Non renewable energy:

A non-renewable resource is a resource that does not renew itself at a sufficient rate for sustainable economic extraction in meaningful human time-framesThe original organic material, with the aid of heat and pressure, becomes a fuel such as oil or gas. Earth minerals and metal ores, fossil fuels nuclear fuels, and groundwater in certain aquifers are all non-renewable resources.

In contrast, resources such as timber and wind are considered renewable resources, largely because their localized replenishment can occur within timeframes meaningful to humans.