Is Wind Power Green Essays

Ruth asks…

kilowatts produced in lowering a large mass?

It occurred to me that excess solar/wind power could be stored by digging a shaft,say 500 feet deep,and suspending a large weight,say 5000 tons,by a cable or cables wrapped around a drum.The drum would be wound up by a motor,and the weight would rise up the shaft.When the stored power was needed,the weight would be allowed to descend,turning a generator.How much power could this setup store? Thanks!

Windmill Farms answers:

Awesome!! That is certainly a novel idea. If we assume a simple potential energy (Ep) = mgh equation and that 1 t = 1000kg, then your set-up provides 5000 kg x 9.81 ms^ -2 x 152.4 m = 7.48 million joules or 7.48 mega joules (MJ)

This value assumes absolutely no friction or other mechanical loss, assuming an average mechanical efficiency of 25% the value = 1.87 MJ

However, to determine the power, the time needed for the weight to descend is vital. In fact power output would likely be controlled by the speed with which the drum is allowed to descend. Power = mgv

P.S: I don’t know if you like writing essays, but ever thought of trying out for some UN/EU essay competitions? New “green” ideas are often being submitted. :)

Ken asks…

I need some help from good writers?

Well at school we have an essay we need to write about how to go green with our computers and I hVE A COUPLE IDeas but I need a few more before writting, please, this is really urgent!
Hint, I have to have it done by oct. 24, so I need a lot of answers, so just because I don’t choose yours, doesn’t meen I won’t use it

Windmill Farms answers:

Using a green power source, solar energy, wind energy, etc. One or two companies in the US are making computers for Africa that are powered by solar panels, hand cranks or pull cords (kind of like a lawnmower cord or the pull cord on a toy). I forget the companies but they were on “60 Minutes”.

Oh and recycle shops that either strip old computers of recyclable parts or ones that pick apart old computers and build renewed hybrid computers out of the pieces.

David asks…

How do i write an essay about Sustainable Energy? Please help! Answer needed before next Wednesday!?

Well, this is what its about:
Australia should develop new and existing technologies to meet our energy needs as a priority.

that’s the title

the description:

You must research these new and existing technologies, and write an ‘argumentive’ essay which explains and argues that Australia should develop green, sustainable technologies to deal with the current challenges and problems of non-renewable, fossil fuel energy use.

Windmill Farms answers:

Hey well I would structure my essay like this based on the topic you gave me:

Intro:
- Improve solar power
- Build more Win farms
- Less use of fossil fuels

(those are the topic sentences)

Paragraph 1:
- Less Use of fossil fuels
- Such as coal, explain why it is bad for the environment ( CO2 emissions etc.)
- Add more reasons why Australia should use less of it

Paragraph 2:
- Improve the use of Solar Energy
- Write about how it is being used a lot now and that more should be used
- Explain how it is environmentally friendly (no CO2 emissions)
- Compare it with coal

Paragraph 3:
-Do the same thing for Solar Energy except use Wind power

Conc.
-Summarise everything you have argued or whatever.

Hope I helped :)

Mary asks…

Good Senior argument/Research paper topics?

to add a Day care in high school was my first topic, because now in days we have young students getting pregnant and some want to continue high school but they have no where to leave their babies.

Windmill Farms answers:

Hello-

Hello-

Wind energy is a superb, unique topic for your essay and I’ve included some pros and cons for you:

Pros:

Good Private Potential: People can generate their own electricity with wind power in much the same manner as people do with solar panels (photovoltaics). Some companies specialize in residential installations and there are also several DIY wind power kits on the market. It is possible to save money in the long run with residential wind turbines. Then there’s the feeling of contributing towards fighting global warming on a more personal level.

Residential wind turbines open up for the possibility for people to become completely energy self-sufficient (often in combination with other solar power and geothermal heating and cooling systems). This means that you are not reliant on electricity from the utility grid, which protects you from blackouts and fluctuating energy prices.

Abundant: Although some places are better suited than others, harnessing wind energy can be done almost everywhere. However, whether or not a resource is financially viable, comes down to the following question: “Can we generate cost-competitive electricity with current technology in this particular area?” Offshore wind turbines expand exploitable resources even further, but then potential environmental impact to the ocean habitats need to be explored.

Prices are Decreasing: While still extremely expensive to produce on a large scale, rices have decreased significantly (as much as 60% since the 1980’s according to some sources). Technological advancements and higher demand is expected to continue to push the prices down even further.

Green Energy: Wind energy is a green energy source. Harnessing wind energy does not pollute the environment as fossil fuels, coal and nuclear energy does. Other than construction and installation, generating electricity with wind energy does not involve any emissions of climate gases whatsoever.

Renewable: Wind energy is a renewable source of energy. Wind is naturally occurring and there is no way we can empty the resources (it naturally comes back).

Cons:

Costs: The cost-competitiveness of wind power is highly debatable. In most cases, projects rely heavily on government incentives to give wind power a fair chance to compete against already well established the power sources such as fossil fuels and coal. Wind generated power ranks second highest only to solar generated power in terms of initial and maintenance costs. Without government subsidies, large scale wind generated energy would be cost-prohibitive.

Noise Pollution: The wind turbines create a lot of noise. This alone is the reason that wind farms are not built near residential areas. People who live nearby often complain of huge noise that comes from wind turbines.

Threat to Wildlife: Due to large scale construction of wind turbines on remote location, it could be a threat to wild life nearby. Few studies have been done by wind turbines to determine the effect of wind turbines on birds and animals and the evidence is clear that animals see wind turbines as a threat to their life. Also, wind turbines require them to be dug deep into the earth which could have negative effect on underground habitats.

Wind Can Never Be Predicted: The main disadvantage of wind energy aside from cost/kwh is that wind can never be predicted. In areas where large amount of wind is needed or winds strength is too low to support wind turbine, there solar or geothermal energy could prove to be great alternatives. That is one of the reasons that most of the companies determine wind turbine layout, power curve, thrust curve, long term wind speed before deploying wind turbines.

Suited To Particular Regions: Wind turbine farms are suited to the coastal regions which receive wind throughout the year. So countries that do not have any coastal or hilly areas may not be able to take any advantage of wind power. The location of a wind power system is crucial, and one should determine the best possible location for wind turbine in order to capture as much wind as possible.

Visual Impact: Though many people believe that wind turbines actually look nice but majority of them disagree. People consider wind turbines to be undesirable to live next to. Petitions usually come before court before any proposed wind farm development.

Hope this helps!

Steven asks…

What specific action(s) should Christians take regarding the environment and its preservation or restoration?

i have to write an essay on this

Windmill Farms answers:

I know of several churches in my area that have implemented both wind and solar power. Many have strong recycling programs, while some encourage their parishioners to plant trees. There are some churches that are considering LEED-certified “green” architecture. These are things that can help. They won’t magically erase centuries of environmental carelessness, but it’s a start. Christians and non-Christians alike can join together and contribute to bettering the environment.

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