Geothermal Energy Created by Corey Boisvert & Courtney O’Keefe
Geothermal Energy
Created by Corey Boisvert & Courtney O’Keefe
This form of renewable energy comes from the Earths core. It produces
thermal energy from regions that have
temperature extremes such as volcanically active
regions, steam beds or hot springs. Geothermal energy
is considered one of the best sustainable energy
sources because it is natural and available in
most places
Convenience is the best!• It is very easy for
the average homeowner to invest in Geothermal Energy because it drills down from most areas on the earth’s surface to the core then converts dry steam to electricity.
• When a homeowner invests in this product, costs on electricity go down as opposed to purchasing fossil fuels, also leading to less global warming.
The diagram above shows two lines out and in of the house, the blue is the dry steam gained from the part underground while the orange is the cooled water that is returned to the ground.
Cost of running• Despite the helpful
impact power plants have on the environment, cost is high and the work is risky.
• It can cost the government an average of $10 million to build a power plant (Or drilling) and has only a 80% success rate of retracting magma from the earth’s crust.
• It has about a capitol cost of $4 million per year to run the power plant.
Seeking heat under Bow: “Take down the Fossil Fools!”
• Officials have agreed to begin construction of a Geothermal Energy Plant in Bow, NH. The project is underway currently and recently started after a few Massachusetts scientists agreed that the geological factors in Bow could have magma levels high enough to make a drill. Atlantic Geothermal LLC is responsible for the production and the capitol cost is believed to be around $786 million due to extensive digging. If plant is successful it could produce up to 330 megawatt.
People gather outside to show support for the construction of the plant
Economics Geothermal heat
pumps save money. Schools now using geothermal heat pump systems save more than $25 million in energy costs - meaning more money for books, equipment and teachers. Homeowners can save 25 to 50 percent on home electric bills compared to conventional heating and cooling systems. Electric bills for a 2,000 sq. ft. home can be reduced to as low as $1 a day, using a geo-exchange system.
The chart above shows how much the average NH 2,000 square foot home
owner pays for heating and what they could pay with other alternatives such as
geothermal sourcesNon-hydroelectric Renewable Generation has about an average cost of 87 Billion Kilowatt hours
Pros and cons• PROS• An EPA study of energy
efficiency concluded geothermal energy is the most environmentally friendly heating/cooling system.
• The United States National Renewable Energy Laboratory concluded that geothermal energy is more efficient and cost-effective compared with conventional residential systems.
• Available everywhere in the United States, geothermal energy can be found underground virtually anywhere.
• Geothermal cost savings can be increased by geothermal energy incentives, available from federal, state, local, and utility sources
• CONS• Geothermal Energy is very
costly, and there for not available to some US citizens
• Geothermal Energy pumps are useful, but only gradually.
The buyer pays a lot of money for his/her product
and only gradually makes the money back by less money on
electricity• Geothermal Energy can lead
to the leaking of gasses from underground wells into
the earths atmosphere leading to addition of
greenhouse gasses in global warming.
• Geothermal energy only makes up about .37% of the US energy
sources, as opposed to in Iceland, where it makes up about
30%
Use of Geothermal Energy as opposed to other sources
Coal
Nuclear
Biomass
Geothermal
Nat. Gas
Oil
Hydroelectric
Non-Hydrorenewables
Corey:I’m really proud,I made this chart myself!
Contribution to ‘GW’
Though Geothermal Energy is a minor energy source in the world, it still contributes to
Global Warming. When drills are set
into the ground they emit gasses from under the
earths crust into the atmosphere
that are potentially hazardous to the
ozone layer.
Though most of the emissions in these pictures are steam, some can be harmful chemicals.
Relationship to conservation of energy• The law of conservation of energy states that “Energy can neither be
created nor destroyed, but converted from one form to another” This concept applies to Geothermal Energy because the
harvested dry steam and thermal heat from the magma in the earth’s core is thermal energy, this is then transferred to a cooling or condensation tower, which turns the water vapour left cool enough to be returned back into the earth’s surface. The steam is converted from thermal energy into heat or possibly electricity.
Pleas for exploration into Geothermal Energy Plant
• Plans in Adelade, Australia.
• Despite the promising chance to cut back on burning of fossil fuels in Australia, officials are not as excited for this new chance at exploration as comparison to in Europe. Officials are leaning more towards not approving the operation.
"Finding the resource; that's the main risk in our industry. So we argue that the government should be contributing to the risk of finding the resource," Says Susan Jeans (Founder of AGEA)
Fun Facts• About 10.000 years ago, Paleo-Indians used hot
springs in North America for cooking. Areas around hot springs were neutral zones. Warriors of fighting tribes would bathe together in peace.
• There are over 140 schools and over 10,000 homes with geothermal heat pump systems in Texas.
• The hottest Geothermal well recorded is 510°F @ 23,800 ft (-96.86 Longitude, 28.79 Latitude) east of Victoria, Texas
Sources
• Information:• http://www.consumerenergycenter.org• http://www.cathylaw.com• http://en.wikipedia.org• http://www.concordmonitor.com/article• http://www.industcards.com• Main Source• http://www1.eere.energy.gov• Pictures:• http://www.cathylaw.com• http://cdn.physorg.com• http://images.google.com• http://www.renewableenergyworld.com