Renewable Energy : Wind Power And Geothermal Energy

The term "renewable" in relation to energy refers to a natural power source which can be replenished on a human time scale. For example, coal and oil may both be replenished but cannot be considered "renewable" sources as the process is not easily replicated artificially and therefore takes millions of years to replace what has been extracted from the earth. The use of sunlight, tides, waves, wind, geothermal heat and biomass are examples of natural power that are considered renewable sources.

One of the fastest growing energy sources in the world, wind power is a globally advantageous renewable resource.

Wind energy is one of the cheapest forms of renewable energy sources. “ In 2013, the cost of generating one kilowatt hour of wind power was said to be about four cents as compared to five cents for hydropower and fifteen cents for nuclear power” (Environmental Encyclopedia). The operational cost for wind energy is also very low. The price for wind energy is steadily decreasing. “Prices have decreased over 80% since 1980 and are expected to keep decreasing” (Energy Informative).

Wind Power is the use of our natural wind that converts it into mechanical energy which eventually becomes electricity. You may not realize this, but we used wind power that dated centuries ago. It pumped water, ground grain, and plenty of other things. (Resources, awea.org)

Solar and wind power have become great alternative sources of energy that in scientific terms can be considered renewable sources. A renewable energy source is an energy source that naturally replaces itself at a rate of at least the natural timeline.

Wind energy has been gaining attention over the last decade. Wind is a form of solar energy; uneven heating of the

Energy from a source that is not worn-out when used, such as wind or solar power, or from other natural movements and mechanisms of the environment. Renewable energy does not consist of energy resources derived from fossil fuels, discarded products from fossil basis, or discarded products from inorganic source

As mentioned above, there are a couple of factors that will help to provide some context for the discussion of wind power – we will start with a cost per megawatt (MW) comparison of wind power to some other common energy production methods. A recent article by the U.S. Energy Information Administration (EIA) provides some insight on this for the near future – giving estimates on energy costs for power plants in the year 2019, in what the paper calls the Estimated Levelized Cost of Electricity (LCOE), in US dollar per megawatt hour or $/MWh. Wind power is estimated to cost 80.3 $/MWh. When this is compared to the estimations for coal, natural gas, and nuclear power generation (estimated to cost 95.6, from 49-70, and 96.1 $/MWh respectively), it does match well against

As the harmful side effects of fossil fuel burning become evermore recognized, the use of clean, renewable technology becomes essential to our health, economy and environment. Petroleum and coal emit harmful pollutants into the atmosphere, contributing to global warming, acid rain and a host of other aliments. Equally concerning is the dependence of the economy on a finite resource such as oil. With world energy consumption rapidly rising, demand is increasing for renewable energy sources that have no significant health impact or environmental degradation. Of all these so called “green” energy sources, wind power has been the most widely used. Wind power is based on the same principals as windmills used for centuries; wind turbines harness

Concern over the end of nonrenewable resources has increasingly grown in the population over the recent decades. Hydrocarbons, specifically oil and gas, are being depleted rapidly. According to imeche.org, only 1.3 trillion barrels of attainable oil remain. At the current rates of consumption, that equivocates to around 2055 when oil should just about be depleted. (imeche.org, 2014) Recent advances in oilfield technology continue to push back the date of annihilation of these resources, but eventually there will be some point in time in which our oil and gas reserves become extinct. At whatever time that happens, society must be prepared to use alternatives methods to reach our energy demands. Because of this inevitable

Renewable energy is defined as using resources that are easily replenished such as water, the sun, or wind, as forms of energy. So why should citizens of the Earth use renewable energy? Many people use renewable energy because of the environmental benefits and the economic benefits or in order to preserve the nonrenewable resources. Using renewable energy sources provides many different benefits for society and for the environment but they also have drawbacks that makes the use of renewable energy a controversial topic.

Wind power is a clean and renewable energy that, while at times unreliable, has very low upkeep cost and is growing at a rapid rate. While there is currently enough wind power to provide many times our current energy need, it is unfeasible in reality. Wind power utilizes the kinetic energy of air and uses it to power a generator to produce electricity. Even though dependence on wind power is impossible, it still can provide a strong, clean, quantity of power to supplement current energy production.

Wind turbines are a renewable energy they work by the wind turning the blade, the blade then turns a shaft inside the nacelle(the box at the top of the turbine), the shaft then goes into a gear box which increases the rotation speed, the generator then converts the rotational energy into electrical energy, the transformer then converts the electricity from around 700 volts to the right voltage for distribution which is usually 33,000 volts after all of these procedures, the national grid then transmits the powers around the country.

Wind turbines use the kinetic energy created by wind currents to produce electrical energy in a generator that spins alongside the turbine’s rotor blades. The generator uses powerful magnets and coils of wire in an electromagnetic field to convert the mechanical energy into electrical energy (Kid Wind Project, Inc., n.d.). From there, the energy is sent to a nearby substation where it’s converted into high voltage electricity and transmitted across the national

Renewable energy is energy that is generated from natural processes that are continuously replenished. This includes sunlight, geothermal heat, wind, tides, water, and various forms of biomass. This energy cannot be exhausted and is constantly renewed.