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What Is Green Power? Green power is electricity that's produced from renewable sources like geothermal, solar, wind and some forms of biomass and hydroelectricity that is low-impact. It's available to customers in markets that are deregulated who want to help support green energy sources by paying a small premium to their utility bill. Many renewable energy sources are less environmentally harmful than drilling for oil or mining coal. They can also help us reduce greenhouse emissions of greenhouse gases. Solar Energy Solar energy is a favored green energy source. Solar energy is considered to be a renewable resource because it will never run out. It is a clean and efficient energy source, which reduces air pollution as well as greenhouse gas emissions from fossil fuels, such as coal, oil natural gas, and coal. This energy is also a good alternative to nuclear power, which requires mining and extraction of uranium and long-term radioactive waste storage. The sun's radiation can be utilized to create electricity in a variety ways such as photovoltaic (PV) panels and concentrated solar-thermal power (CSP), and solar thermal collectors. Solar electricity can either be distributed directly to homes and businesses or to grids that supply power to others. Some customers even can sell their surplus energy back to the utility company, which helps keep electricity bills low and even offset rising utility costs. All forms of solar energy produce zero air emissions or pollutants unlike fossil fuels, which generate carbon dioxide and other harmful gases during their combustion. Solar energy can also be used to power different types of devices, including satellites, boats and spacecrafts that cannot connect to the electrical grid is not feasible or even possible. On smaller scales solar power can also be utilized to power buildings. Many homeowners install PV cells on their roofs in order to generate electricity. Passive solar homes allows for these homes to receive the sun's warmth throughout the day and keep it in the evening. Solar-powered homes also benefit from requiring very little maintenance. Another form of solar power is hydropower, which uses the natural flow of the water in streams, rivers and dams to produce electricity. Hydropower, just like wind and biomass is a renewable resource because it can be replenished. Take a look at the EPA's list for third-party certified hydropower options if you would like to incorporate it into your office or at home. Geothermal Energy A geothermal energy plant harnesses heat from the Earth's interior to generate electricity. The process makes use of steam and hot water that naturally occur a few kilometers below surface of the Earth. It is an environmentally sustainable and renewable energy source that generates electricity 24 hours a days all year round. Geothermal power could reduce our dependency on fossil fuels. It is also among the most eco-friendly methods of energy generation. The most popular type of geothermal power plant is a flash-steam power plant. It uses water at temperatures of approximately 182deg C (360deg F) to generate electricity and power turbines. Steam can be utilized to heat industrial processes or even buildings. Iceland for instance, relies on geothermal energy to melt snow and heat its sidewalks, streets and parking spaces during the cold Arctic winter. Another source of geothermal energy is a hot dry rock (HDR) power plant that taps underground reservoirs of hot dry rock that have been heated by either natural or human-made activities. HDR plants require less infrastructure than geothermal power plants, which makes them more affordable and less costly to build and operate. According to the National Renewable Energy Laboratory, there is enough HDR resources in the United States for all of our current electrical requirements. The steam from geothermal power stations can be used as a source of power through steam turbine generators or in conjunction with gas-fired turbines to boost efficiency. The mixture can be converted into natural gas, and then burned in a boiler to generate electricity. In addition to being clean and reliable, geothermal energy also has the smallest carbon footprint among all renewable energy sources. Binary-cycle plants, which use an engine to convert steam into electricity, generate minimal or no methane, nitrous oxide, or sulfur dioxide. Geothermal energy is not without its difficulties, despite its advantages. The drilling required to construct geothermal power plants can trigger earthquakes and pollute the groundwater. Furthermore, the dumping of high-pressure streams into geothermal reservoirs can cause subsidence, a slow sinking of the terrain that can cause damage to pipelines, roads, and buildings. Biogas Biogas is a natural gaseous energy source that can be utilized to produce green energy. It is made from manure, agricultural wastes plants, sewage food wastes, municipal garbage, and other organic wastes. Biogas can be used to transport fuels, electricity heat, combined heat and energy, or electricity by using the Fischer-Tropsch method. Biogas is also a viable source of hydrogen that can be produced renewable for use in fuel cells which are likely to play a major role in the future of global energy systems. The most commonly used method for valorisation of biogas is to generate electricity by using the power of a combined heat and (CHP) plant. The heat generated by the CHP plant is utilized to fuel the fermentation of organic wastes. In turn, the electricity is fed back into the grid. Biogas can also be compressed into natural gases and incorporated into existing natural gas distribution systems. Biogas can be used to substitute for natural gas imported from mines in commercial, ground transportation and residential structures. Biogas is renewable energy source that can also help reduce greenhouse gas emissions. The CCAC is working to develop tools for measuring, reporting and confirming (MRV) of clean cooking in communities and households in low-to-middle income countries to assist the nations that have included clean cooking targets in their Nationally Determined Contributions (NDCs). Biogas can be used as an alternative to traditional natural gas for cooling and heating and to substitute fossil fuels for the generation of electricity carbon dioxide emissions will be reduced. Biogas is also a sustainable substitute for coal, oil and other fossil fuels for production of liquid transport fuels. By collecting and recovering methane to prevent the release of greenhouse gasses into the air and the runoff of nitrogen that could otherwise pollute our water sources. Plessis-Gassot, a landfill that is not hazardous located in Claye-Souilly (France) for example it captures and converts biogas into a renewable source of energy for households that are connected to the system. Small-scale biogas facilities can be installed in cities, allowing the collection and utilization of organic waste from local sources. This can reduce greenhouse gas emissions associated with transportation and treatment. Hydroelectric Power Hydropower uses the energy generated by the kinetic energy of water to generate electricity. It is the most sought-after and cheapest renewable energy source around the globe. It does not emit greenhouse gases directly, but it has significant environmental impacts. It is a flexible type of green energy that is able to be adjusted to meet changing demand and supply. It is able to last a life of over a hundred years and can be upgraded to improve efficiency and performance. The majority of hydropower plants that are traditional use dams to harness the energy of falling water. A series of turbines converts energy of the water into electricity at a speed that is proportional to the speed at which it travels. This electricity is then sent to the grid to be used. electric power scooters require a large investment in reservoirs and pipes. However the operating costs are low. Furthermore, these plants can be used as backups for other intermittent renewable power sources like wind and solar. There are two main types of hydroelectric power plants: storage and run-of-river. Storage plants have huge impoundments, which can hold more than a season's worth of water. Run-of-river facilities draw water from rivers and streams that flow freely. Hydropower facilities are typically located in or near concentrations of people, in areas where there is a significant demand for electricity. The environmental impact of hydropower largely depends on the size and location of a dam, the amount of water that is displaced and the wildlife and habitat affected by decomposition and inundation. The effects of hydropower can be mitigated and diminished by utilizing Low Impact Hydroelectricity Standards (LIHI) for the construction and operation of the hydropower project. The standards include measures for the flow of rivers, water quality protection passage of fish, aquatic ecosystems protection endangered and threatened animals as well as recreation and cultural resources. In addition to producing renewable energy and power, some hydropower plants function as the world's largest “batteries.” They are known as storage facilities pumped by the government and work by pumping water uphill from a lower reservoir to a higher reservoir. When electricity is needed, the water from the lower reservoir can be used to power generators. The water from the upper reservoir can then be pumped downwards through a turbine to generate more electricity.