May 19, 2009
14 renewable energy
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For a graduate project in Asia, I am looking at renewable energy and its effects on growing businesses. I want to look at developed and developing businesses that use renewable energy. Can anyone point me in the right direction with regards to finding areas in Asia to research? I wanted to stick with 3rd world.
The best renewable energy is oil & gas. Our plants recycle Co2 into oil & gas.So we will never run out of oil.
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I have been learning more about renewable energy and I was wondering what the best form of renewable energy? Is it solar, wind, geothermal, or hydroelectric? Can anyone help me out
The best is the one is the one you use.
Usually this is the one to which that you have the most access.
If you live in the desert hydro may not be much good but solar or wind might. If you live in a valley you might not get too much sun or wind but have a year round stream that can power a wheel. If there is wind., geothermal or whatever near you, make use of it.
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Ford Foundation's Community Colleges Bridges To Opportunity: Profile of Gabriel Ortiz
Duration : 0:3:26
More on Red Rocks Community College's Renewable Energy Program
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What are the advantages and disadvantages of renewable energy in to climate change? Whatare the contributions of renewable energy to climate change?
It is a political term to describe power sources that don't emit much CO2 but which can't actually provide the power our civilisation needs (so far no country has managed to get much more than 20% of their power from wind or solar and even then they had to rely on their neighbours' hydro and nuclear as well as their own coal to prevent the grid from collapsing). Hydro is the main renewable energy source for electricity production right now but is opposed by most of the people who claim we need renewable energy (and unlike their opposition to nuclear power they actually have good reasons to oppose hydro).
They are used mainly to delay the switch to nuclear power (which despite being not renewable should be good for millions of years at higher than current energy use) that would allow us to actually solve the global warming problem and thus contribute to global warming by keeping the fossil fuel industry in business.
Basically the way it does that is that a bunch of windmills get built and start supplying power to the grid but because of natural variability in the wind they don't provide that power all the time (20% of rated capacity is considered pretty good for wind) nor can we control when they provide their power so to use wind power you need a source of backup power that is reliable and usually that means fossil fuels (nuclear could be used but if you use nuclear for that then you may as well not bother with the windmills because the windmills would not reduce CO2 emissions or save money). Solar is less variable but PV cells cost a lot more and it still needs backup at night and partial backup on cloudy days. The need for backup means that the fossil fuel industry still gets to exist (and continue pumping CO2 into the atmosphere) if the way to address (if very badly) climate change is to use wind and solar.
Hydro and geothermal have the reliability to be used for baseload although they only work in some locations and hydro power probably won't be used where it can be because of the massive environmental damage building a dam causes.
Wave and Tidal power when you calculate how much energy there is turn out to be way too diffuse to be useful. Biofuels show promise but not much because you need land to grow them on and that land could be better used growing food or even being turned back into forest.
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The entire film is 17 minutes and chronicles my trip in January of this year to Nolan County, Texas - perhaps the wind energy capitol of North America. If you have any interest in the energy policy debate that is ongoing in Kansas DON'T MISS THIS FILM! We've broken it up into 3 parts - each about 5-6 minutes long. We'll put the third and final installment up on Monday.
Duration : 0:6:17
More on In search of the renewable energy economy, part 2 of 3
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This 30-second spot has aired on several New England TV channels to inform Massachusetts citizens about clean, renewable energy in the Commonwealth. It highlights the benefits of wind turbines.
Duration : 0:0:34
More on Renewable Energy: It's Real; It's Here; It's Working for MA
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This video was created by Bowdoin College students www.bowdoin.edu in cooperation with the Maine Energy Investment Corporation www.renewmaine.org.
Duration : 0:1:55
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Earth4Energy is a guide on how to build homemade power systems, including a DIY solar power system, a DIY wind power system, and making your own bio diesel. This in depth Earth4Energy Review takes you through the membership system showing you the products you get when you sign up. Also read a full review at http://www.renewable-energy-expert.com/earth4energy-review-by-author-michael-harvey.php
Duration : 0:7:0
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