Start with the customer – find out what they want and give it to them. Electric power generation generally implies large-scale production of electric power in stationary plants designed for that purpose. Historically, these plants have mostly burned fossil fuels such as coal, oil, and natural gas. Hydropower, driven by the conversion of falling water to energy via hydraulic turbines, is also an electric power generating source with a legacy going back to the late 19th century. Nuclear power plants, where energy is obtained through the controlled fission of atoms, emerged in the 1950s. In more recent decades, concerns about global climate change caused by anthropogenic greenhouse gas emissions, of which a significant portion is related to electric power generation involving fossil fuels, coupled with improving economics and technologies, have led to increased interest in and utilization of alternative energy sources. These sources include wind, solar, biomass, and geothermal, as well as hydroelectric power. Because these forms of potential energy constantly and rapidly renew themselves, they are termed "renewable" energy sources, in distinction to nonrenewable fossil fuels, which exist in finite quantities within the Earth.
Renewable - Inexhaustible Energy
Strong winds, sunny skies, abundant plant matter, heat from the earth, and fast-moving water can each provide a vast and constantly replenished supply of energy. A relatively small fraction of electricity currently comes from these sources, but that could change: studies have repeatedly shown that renewable energy can provide a significant share of future electricity needs, even after accounting for potential constraints.
Increasing the supply of renewable energy would allow us to replace carbon-intensive energy sources and significantly reduce the global warming emissions. It is found that renewable energy could help reduce the electricity sector's emissions by approximately 81 percent