WIND AND GEOTHERMAL ENERGY

How is wind energy created?
Simply stated,a wind turbine works the opposite of a fan,instead of using electricity to make wind,like a fan,wind turbines use wind to make electricity.The wind turns the blades,which spin a shaft,which connects to a generator and makes electricity.

Untitled Slide

HOW WAS IT DISCOVERED/INVENTED?

• July 1887,Glasgow,Scotland The first windmill for electricity was created by Professor James Blyth.
• 1887,Ohio,US Professor Charles F. brush built a 12kW wind turbine to charge 408 batteries in his celler.
• 1890,Askov,Denmark. Scientist Poul La Cour tests in a bid to bring electricity to the rural population of Denmark.He was the first to discover that fast rotating wind turbines with fewer rotor blades were most efficient in generating electricity production.

hOW WAS IT DISCOVERD/INVENTED?

• 1927,Minneapolis,US.Joe and Marcellus Jacobs opened the Jacobs wind factory,producing wind turbine generators.
• 1920's The first vertical axis wind turbine the Darrieus turbine,was invented by Frenchman George Darrieus who in 1931 has it patented in the US. The design often referred to as the "egg beater windmill" due to the appearance of its two blades that are still used today.

IS WIND ENERGY RENEWABLE?

• Because wind is a source of energy which is non-polluting and renewable. Wind turbines create power without using fossil fuels,without producing Greenhouse gases or radioactive or toxic waste. Wind power reduces global warming.

HOW DOES IT IMPACT ON THE EARTH?

• Harnessing power from the wind is one of the cleanest and most sustainable ways to generate electricity as it produces no toxic pollution or global warming emissions. Wind is also abundant, inexhaustible, and affordable, which makes it a viable and large-scale alternative to fossil fuels. Despite its vast potential, there are a variety of environmental impacts associated with wind power generation that should be recognized and mitigated.
• It takes up land taking forcing trees to be moved and ruining habitats for wildlife.
• Sound and visual impact are the two main public health and community concerns associated with operating wind turbines. Most of the sound generated by wind turbines is aerodynamic, caused by the movement of turbine blades through the air.

GOOD THINGS ABOUT WIND

• Wind is a clean energy source that is endlessly renewable and remarkably reliable. It does not pollute the air or cause acid rain like fossil fuels
• Some carbon dioxide is released during manufacture and maintenance of wind turbines, but wind turbines themselves emit no carbon dioxide or other greenhouse gases while they are producing electricity.
• Building and maintaining wind turbines costs money but no one pays for the wind itself. Since wind is a free fuel, wind power prices do not go through the kind of price fluctuations consumers experience with fossil fuels.

BAD THINGS ABOUT WIND

• Wind turbines have to be installed on towers higher than nearby trees and buildings to make the most efficient use of the wind. That high profile sometimes leads to complaints that they detract from the aesthetic appearance of a skyline or a neighborhood.
• Wind turbines blades batter birds, killing 20,000 to 37,000 a year in the U.S., according to a 2007 National Academy of Sciences study, "Environmental Impacts of Wind-Energy Projects." In contrast, at least 90 million birds die annually by flying into buildings, more than 130 million die in collisions with power lines, and millions more are killed by pesticides and domestic cats, according to the study.
• The towers and turbines that turn wind into electricity come in different sizes to meet different needs. The biggest wind turbines use rotors spanning more than 100 yards mounted on towers higher than 20-story buildings

Untitled Slide

Untitled Slide

GEOTHERMAL ENERGY

HOW IS GEOTHERMAL ENRGY MADE?

• Dry-steam power plants take advantage of natural underground sources of steam. The steam is piped directly to a power plant, where it is used to fuel turbines and generate electricity. Dry steam is the oldest type of power plant to generate electricity using geothermal energy.

WHEN WAS IT DISSCOVERD/INVENTED?

• 1807. As European settlers moved westward across the continent, they gravitated toward these springs of warmth and vitality. In 1807, the first European to visit the Yellowstone area, John Colter, probably encountered hot springs, leading to the designation "Colter's Hell." Also in 1807, settlers founded the city of Hot Springs, Arkansas, where, in 1830, Asa Thompson charged one dollar each for the use of three spring-fed baths in a wooden tub, and the first known commercial use of geothermal energy occurred.

IS GEOTHERMAL ENRGY RENEWABLE?

• Because its source is the almost unlimited amount of heat generated by the Earth's core. Even in geothermal areas dependent on a reservoir of hot water, the volume taken out can be reinjected, making it a sustainable energy source

HOW DOES IT IMPACT ON THE WORLD?

• The most widely developed type of geothermal power plant (known as hydrothermal plants) are located near geologic “hot spots” where hot molten rock is close to the earth’s crust and produces hot water.

GOOD THINGS ABOUT GEOTHERMAL ENERGY.

• Geothermal energy is a reliable source of power.
• Geothermal energy creates jobs and spurs economic growth.
• Geothermal energy is widely available.

BAD THINGS ABOUT GEOTHERMAL ENERGY.

• To get geothermal energy, requires installation of power plants, to get steam from deep within the earth and this require huge one time investment and require to hire a certified installer and skilled staff needs to be recruited and relocated to plant location. Moreover, electricity towers, stations need to set up to move the power from geothermal plant to consumer.
• May Release Harmful Gases Geothermal sites may contain some poisonous gases and they can escape deep within the earth, through the holes drilled by the constructors. The geothermal plant must therefore be capable enough to contain these harmful and toxic gases.
• Transportation Geothermal Energy can not be easily transported. Once the tapped energy is extracted, it can be only used in the surrounding areas. Other sources of energy like wood, coal or oil can be transported to residential areas but this is not a case with geothermal energy. Also, there is a fear of toxic substances getting released into the atmosphere.

MY PROPOSAL

• I think that wind energy is better and would like to present a proposal about my power plant, PlumsPowerPlant or PPP for short.
• I would use w energy storing wind dam it is a “compact” solution to wind turbines. Wind dams are designed so they can be added on to an existing dam or hydro-power station. Attaching it to an existing hydro-power station could also allow it to help boost energy during peak times and store energy during off peak times.
• I would pick Wellington also known as the “Most Southerly Capital City in the World,” Wellington, New Zealand is the windiest city in the world with an annual average around 16 knots/hr (18 miles/hr). Wellington is located in what is known as a River of Wind, a wind corridor between the South and North Islands of New Zealand.
• The benefits of this method is each sail will be able to generate enough energy to power 35 homes.

THE END 😎