Oil, natural gas, uranium, water - as power sources, all have the potential to run out during the course of human development, possibly in the next couple of hundred years. Renewable sources can sidestep this problem by using energy sources that either will last longer than the human race or can be regenerated through agriculture. Most renewable energy sources are also environmentally friendly.
Wind energy is the most established of the renewables, constituting 1% of global energy production, or about $51.4 billion in 2008, and accounting for more than 50% of global investment in renewable energy in 2009. It can also be the most cost-efficient, especially when large installations using large turbines can take advantage of economies of scale.
Wind energy isn't cheap to build, but it is cheap to manage. renewable energy grew from $75.8 billion to $115.9 billion, or about 53%, indicating that these energy sources are getting more and more popular. Out of all the renewable energy, Wind is also the most effective because wind is everywhere, night and day.
Oil is not cheap. And it is only going up in price. Renewable energy for the most part is not that cheap either, but it isn't so expensive that it isn't affordable on the average person's salary. And making this step to use Oil only when needed, we wont need to worry about running out so quickly.
http://www.wikinvest.com/industry/Renewable_Energy
Monday, December 6, 2010
Alternative Power Sources
Nonrenewable fossil fuels like coal, petroleum, and natural gas provide more then 85% of the energy used in the world. in the United States, fossil fuels make up about 81.6% of the energy supply. Nuclear power provides 7.7% and renewable energy sources like wind, solar, hydro, geothermal, and biomass make up only 7.3%. That is a lot of fossil fuels put in the air everyday that we can never renew. Nuclear energy is good but the material it produces is bad for the environment. But it can help by using renewable resources to generate it's energy.
Sure, it is near impossible to just stop using electricity completely but replacing it with renewable energy during times of the day when it is possible should be used. Like during the day time when it is nice and sunny out or if it is raining and the wind is blowing, you can turn your electricity off and used solar or wind power to generate energy to use all day long.
Sure, it is near impossible to just stop using electricity completely but replacing it with renewable energy during times of the day when it is possible should be used. Like during the day time when it is nice and sunny out or if it is raining and the wind is blowing, you can turn your electricity off and used solar or wind power to generate energy to use all day long.
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