Notes

Why You Should Be Working With This Green Power
What Is Green Power?

Green power is electricity that's produced by renewable resources such as solar, wind, geothermal and some forms of biomass and hydroelectricity with low impact. Customers in markets that are deregulated are able to add a small fee to their utility bills to help support green energy sources.

Renewable energy sources are typically less harmful to the planet than coal or oil mining. They can also reduce our greenhouse gas emission.

Solar Energy

Solar energy is a popular green energy source. Solar energy is a renewable source because it never runs out. It is an efficient, clean and safe energy source that reduces greenhouse gas emissions as well as air pollution caused by conventional fossil fuels, such as natural gas, coal and oil. This energy is a good alternative to nuclear power that requires mining, extraction and storage of radioactive waste.

The sun's energy can be utilized to create electricity in a variety of ways that include photovoltaic (PV) panels, concentrated solar-thermal power (CSP), and solar thermal collectors. Solar electricity can be channeled directly into homes and businesses, or it could be transferred to grids that distribute power to other customers. Some customers can sell their excess energy to the utility company. This can help lower the cost of electricity and offset rising utility costs.

Solar energy doesn't produce pollution or emissions to the air unlike fossil fuels, which emit harmful gases and carbon dioxide when they are burned. Solar energy can also be used to power other types of devices, like spacecrafts, boats, satellites and other vessels that cannot connect to the electrical grid is impractical or impossible.

On smaller scales, solar can be used to power buildings. Many homeowners put PV cells on their roofs to produce electricity. Passive solar design of homes lets these homes receive the sun's warmth throughout the day and keep it at night. Solar-powered houses also have the benefit of needing minimal maintenance.

Hydropower is a different type of solar energy that utilizes the natural flow in rivers, streams dams, and streams. Like wind and biomass hydropower, hydropower is a renewable resource because it can be replenished. If you're looking to add hydropower to your home or business take a look at the EPA's list for third-party certified options.

Geothermal Energy

A geothermal energy plant harnesses heat from the Earth's interior to produce electricity. The process involves steam and hot water, which naturally occur just a few kilometers below Earth's surface. It is an environmentally sustainable and renewable energy source that produces electricity 24 hours a day all year round. Geothermal power is a great way to reduce our dependency on fossil fuels. It is also one of the most environmentally friendly forms of energy generation.

The most popular type of geothermal power plant is a flash-steam power plant. It uses water at a temperature of about 182deg C (360deg F) to generate electricity and power turbines. Steam can be utilized to heat industrial processes or buildings. Iceland, for instance, uses geothermal power to melt snow and heat its streets, sidewalks and parking areas during the frigid Arctic Winter.


A hot dry rock power plant is an additional geothermal source of energy. It taps underground reservoirs comprised of dry, hot rock that has been heated by either natural activities. HDR plants require less infrastructure than geothermal power plants, which makes them more affordable and less costly to construct and operate. Read A great deal more that there is enough HDR resources in the United States to meet all of our current needs for electricity.

The steam generated by geothermal power plants can be used to create electricity through a steam-turbine generator, or it could be combined with a gas-fired generator for increased efficiency. The resultant mixture can be converted to natural gas, which can be burned in a conventional boiler to produce electricity.

In addition to being safe and reliable, geothermal energy is the smallest carbon footprint of all renewable energy sources. Binary-cycle plants that use an engine to turn steam into electricity create minimal or no nitrous oxide, methane, and sulphur oxide.

Geothermal energy has its own difficulties, despite its benefits. The drilling needed to build geothermal power plants could trigger earthquakes and can cause groundwater pollution. Injection of high-pressure water streams into geothermal reservoirs may also cause subsidence. This is a gradual sinking that can damage roads, buildings, and pipelines.

Biogas

Biogas is an energy source made of renewable gaseous substances that produces green power. It can be produced from manure, agricultural waste, plant material and sewage, municipal waste, food waste, and other organic waste materials. Biogas can be used to create electricity, heat and combined heat and power or transformed into fuels for transport using the Fischer-Tropsch process. Biogas is also a valuable source of hydrogen that can be produced renewable to be used in fuel cells that are expected to play an important role in the future of global energy systems.

The most common way to maximize the value of biogas is generating electricity in a combined heat and power (CHP) plant. The heat generated by the CHP process is used to support the fermentation process of organic waste and the electricity is fed into the grid. Alternatively, it can be compressed into natural gas and incorporated into the existing distribution networks for natural gas. Biogas can also be used as a substitute for imported natural gas in ground transportation, commercial and residential constructions.

In addition to generating renewable energy, biogas can also help reduce greenhouse gas emissions and pollutants from cooking conventionally. The CCAC provides tools for measuring reporting and verifying (MRV) clean cooking in households of low- to middle-income countries. This will aid the 67 countries who have included clean-cooking targets in their Nationally Determined Contributions.

Utilizing biogas as a substitute for traditional natural gas for heating and cooling and to substitute fossil fuels in electricity generation, carbon dioxide emissions will be reduced. Biogas can also be used to create liquid transport fuels that can be a sustainable alternative to oil, coal, and other fossil fuels.

By capturing and recovering methane to prevent the release of greenhouse gasses into the atmosphere as well as the runoff of nitrogen that would otherwise pollute our water sources. Plessis-Gassot, a non-hazardous landfill in Claye-Souilly (France) for instance it captures and converts biogas into a sustainable source of energy for households that are connected to the system. Small-scale biogas facilities can be constructed in cities, allowing the collection and utilization of organic waste from local sources. This will help reduce the greenhouse gas emissions that are associated with transport and treatment.

Hydroelectric Power

Hydropower uses the energy kinetics of water to generate electricity. It is the largest and most affordable renewable source of power worldwide. It releases no greenhouse gases directly, but will have significant environmental impacts. It is a highly flexible form of green power that can be easily modified to meet changes in supply and demand. It has a service life of more than a hundred years and is able to be upgraded to improve efficiency and performance.

The majority of traditional hydropower plants utilize dams to harness the energy generated by falling water. A series of turbines converts kinetic energy from the water into electricity at a rate proportional to its velocity. The electricity is then transferred to the grid of electricity for use.

Hydroelectric power plants require a large investment in reservoirs and pipes. However, operating costs are low. These flexible plants can also be used as backups for other renewable energy technologies that are intermittent such as solar and wind.

There are two kinds of hydroelectric plants: storage and run-of-river. Storage plants are characterized by large impoundments that can store more than a season's worth of water. Run-of-river facilities draw streams and rivers that are free-flowing. Hydropower plants are typically located close to or in areas with a high density of population and where the demand for electricity is high.

The environmental impact of hydropower is dependent on the size and location of a dam and the amount of water that is displaced and the wildlife habitats and habitats affected by decomposition and flooding. These effects can be minimized and diminished by utilizing Low Impact Hydroelectricity Standards (LIHI) for the construction and operation of a hydropower project. The standards include measures for the flow of rivers, water quality protection and fish passage, as well as protection of aquatic ecosystems endangered and threatened animals, recreation and cultural resources.

In addition to generating renewable energy, some hydropower plants act as the world's biggest "batteries." These are called storage facilities that are pumped and operate by pumping water uphill from a lower pool to a higher reservoir. When there is a demand for electricity, the water in the lower reservoir is released to power generators, while the water in the higher reservoir is pumped back downhill through turbines to generate more electricity.

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