is hydroelectric alternative energy
What is the most economically viable form of alternative energy?

What up-and-coming forms of energy production have the best chance to compete with coal?

Solar
Wind
Hydroelectric
Geothermal
Wave/Tidal
Nuclear

for me it might be eolic (air) energy.
New technologies have decreased the cost of producing electricity from wind, and growth in wind power has been encouraged by tax breaks for renewable energy and green pricing programs. Many utilities around the country offer green pricing options that allow customers the choice to pay more for electricity that comes from renewable sources.

Wind machines generate electricity in 30 different states. The states with the most wind production are California, Texas, Minnesota, Iowa, and Wyoming.

The United States ranks third in the world in wind power capacity, behind Germany and Spain. Most of the wind power plants in the world are located in Europe and in the United States where government programs have helped support wind power development.

In the 1970s, oil shortages pushed the development of alternative energy sources. In the 1990s, the push came from a renewed concern for the environment in response to scientific studies indicating potential changes to the global climate if the use of fossil fuels continues to increase. Wind energy offers a viable, economical alternative to conventional power plants in many areas of the country. Wind is a clean fuel; wind farms produce no air or water pollution because no fuel is burned.

The most serious environmental drawbacks to wind machines may be their negative effect on wild bird populations and the visual impact on the landscape. To some, the glistening blades of windmills on the horizon are an eyesore; to others, they’re a beautiful alternative to conventional power plants

Carrongrove hydropower and renewable energy


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In today’s world of ever increasing energy use, finding a renewable energy source is a necessity. With increasing legislation and incentives to find solutions to oil dependence harnessing natural resources is more important than ever. “Renewable Energy,” is a four film collection on wind, solar, and water power. How each is important to the world, how they create energy for households and business…

Elenco Snap Circuits Green - Alternative Energy Kit


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Serious Microhydro: Water Power Solutions from the Experts


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A balanced introduction to tomorrow’s energy sourcesOver the course of the next fifty years, there will be a shift in the quest for sustainble energy, including a major change in transportation from internal combustion engines burning petroleum-derived fuels to newer technology engines using new transportation fuels. Alternative Energy Reources examines our options for energy sources with a focus …