GREEN ENERGY

GREEN  ENERGY

Green power is a subset of renewable energy and represents those and technologies that provide the highest environmental benefit. defines green power as electricity produced from solar, wind, geothermal, biogas, biomass, and low-impact small hydroelectric sources. Customers often buy green power for avoided environmental impacts and its reduction benefits.

Sustainable energy is the provision of that meets the needs of the present without compromising the ability of future generations to meet their needs. energy sources are most often regarded as including all sources, such as, and It usually also includes technologies that improve. Conventional is sometimes referred to as sustainable, but this is controversial politically due to concerns about and the risks of disaster due to accident, terrorism, or.

Among sources of renewable energy, hydroelectric plants have the advantages of being long-lived—many existing plants have operated for more than 100 years. Also, hydroelectric plants are clean and have few emissions. Criticisms directed at large-scale hydroelectric plants include: dislocation of people living where the reservoirs are planned, and release of significant amounts of carbon dioxide during construction and flooding of the reservoir.