Sources of Energy: Geothermal Energy – What’s the Difference Between a Kilowatt-Hour and a Megawatt-Hour?
Sources of energy are classified as either renewable or nonrenewable, depending on whether their source can replenish itself or not. The energy that comes from these sources is often divided into two main categories: primary and secondary sources of energy. Primary sources of energy include solar, geothermal, wind, hydroelectric, and nuclear energy. Secondary sources of […]