This document summarizes different types of energy resources, dividing them into two main groups: renewable and non-renewable. Renewable resources, such as solar, wind, and hydropower, come from sources that replenish naturally within human timescales, while non-renewable resources like coal, petroleum, and natural gas form over long geological periods and do not renew themselves rapidly enough to be considered renewable or sustainable. The document provides brief descriptions of various energy sources including geothermal, solar, wind, hydropower, biomass, petroleum, natural gas, coal, and nuclear energy.