Alternative Energy Review

Alternative energy is energy that is not generated from fossil fuels. There are many different types of alternative energy, and each has its own benefits and drawbacks. There are a number of alternative energy sources, including solar power, wind power, and hydroelectric power.

Alternative energy is important because it helps reduce emissions from fossil fuel generators. Alternative energy also helps reduce our reliance on foreign oil. The United States currently imports 20% of its oil. Alternative energy is also important because it helps reduce emissions. The United States currently produces more than 60 percent of its electricity from coal-fired power plants, and this number is expected to rise as the economy becomes more dependent on cheap oil.

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Renewable energy is based on a source of energy that is naturally replenished, such as the sun and wind. Renewable energy is different than non-renewable energy because all renewable energy sources are naturally replenished in some way. Renewable energy is produced by technologies that are considered sustainable, and does not emit greenhouse gases into the atmosphere. Renewable energy has been defined in many different ways.

The International Renewable Energy Agency (IRENA) defines renewable energy as "energy that is collected from natural resources, such as sunlight, wind, rain, tides and geothermal heat; derived from non-living resources such as biomass, biogas and biofuels; or based on in-situ generation of electricity or heat at the point of use."

The most popular renewable energy sources currently are:

Wind Energy

Wind energy is a form of renewable energy that uses air currents to turn turbines, which generate electricity. Wind power has been used for centuries to power ships and mills. Today, wind turbines are used to generate electricity in many countries around the world. Wind energy is a clean and sustainable form of energy that does not produce emissions or greenhouse gases.

Hydro Energy

Hydro energy is a renewable resource that uses water to generate electricity. It is the most widely used form of renewable energy in the world, accounting for about 16 percent of global electricity generation. Hydroelectricity is produced by using water to turn turbines, which in turn generate electricity. The potential to use hydro energy is vast, with more than 1,000 gigawatts (GW) of untapped capacity worldwide.

Tidal Energy

As the world continues to search for new and renewable sources of energy, tidal power is becoming an increasingly popular option. Tidal power is the process of using the energy from tides to generate electricity. Because tides are created by the gravitational pull of the moon and sun, tidal power is a reliable and consistent source of energy.

There are several different ways to harness tidal power, but all methods involve capturing the movement of water as it flows in and out of coastal areas. One common method is to use turbines to convert the kinetic energy of the moving water into electrical power. Another method is to use dams or barriers to create reservoirs that can be released when needed to generate electricity.

Tidal power has some advantages over other forms of renewable energy. It is a predictable resource, meaning that developers can plan for it years in advance. Tidal power is also a reliable source of energy. Because it is based on the natural movement of water, it can be turned on and off as needed to meet demand.

Geothermal Energy

Geothermal energy is a form of renewable energy that comes from the heat of the Earth. It can be used to generate electricity, to heat homes and businesses, or to produce cooling. Geothermal energy is sustainable, meaning it can be used over and over again, and it doesn’t produce greenhouse gases like carbon dioxide.

Wave Energy

Wave energy is a form of renewable energy that harnesses the power of the ocean s waves and tides. One of the biggest challenges for developers is finding a location where it can be used effectively.

Biomass Energy

One of the most promising and rapidly growing renewable energy sources is biomass. Biomass is simply organic matter, such as plant material or waste, that can be burned to produce heat or electricity. Biomass can be used to generate power in two ways: combustion and digestion.

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In combustion, the biomass is burned directly to produce heat, which then powers a generator to create electricity. In digestion, biomass is broken down into its component parts by microorganisms such as bacteria or fungi. The resulting fuel, such as methane or ethanol, can then be burned to generate power.

One of the most promising and rapidly growing renewable energy sources is biomass. Biomass is simply organic matter, such as plant material or waste, that can be burned to produce heat or electricity.

Solar Energy

In recent years, solar energy has become an increasingly popular source of renewable energy. Solar panels use sunlight to convert heat into electricity, and they can be installed on roofs or in yards to provide power for homes and businesses. Thanks to falling prices and new technology, solar energy is becoming more and more affordable, and it is projected to continue growing in popularity in the years to come.

One of the most important points about renewable energy is that it is a sustainable energy source. Once an area has been cleared for new solar panels, the land will not be used again. Solar power is a clean and sustainable form of energy that produces no emissions or greenhouse gases. The sun provides the energy needed to make electricity, heat water, and provide light for plants and animals.


With the world's population growing at an alarming rate, the need for alternative energy is greater than ever. Fortunately, technology is advancing at a rapid pace, and new forms of alternative energy are being developed all the time. From solar and wind power to geothermal and hydrothermal energy, there are many options available to help us reduce our reliance on fossil fuels.

The future of alternative energy looks bright, and we can expect to see even more innovative technologies in the years to come. With continued investment and innovation, we can ensure that alternative energy becomes a mainstay in our society, helping us to meet our energy needs while protecting our environment.