Biofuels have been around as long as cars have.

A biofuel is a fuel that contains energy from geologically recent carbon fixation. These fuels are produced from living organisms.

Generating Electricity from Wing Waves.

Wind turbines, like windmills, are mounted on a tower to capture the most energy. At 100 feet (30 meters) or more aboveground, they can take advantage of the faster and less turbulent wind.

Producing electricity from solar energy.

Solar energy is a free, inexhaustible resource, yet harnessing it is a relatively new idea. The ability to use solar power for heat was the first discovery.

Turbines catch the wind's energy with their propeller-like blades.

A blade acts much like an airplane wing. When the wind blows, a pocket of low-pressure air forms on the downwind side of the blade.

Solar energy may have had great potential

Solar technology advanced to roughly its present design in 1908 when William J. Bailey of the Carnegie Steel Company invented a collector with an insulated box and copper coils.

We have been harnessing the wind's energy for hundreds of years.

For utility-scale sources of wind energy, a large number of wind turbines are usually built close together to form awind plant.

Biofuels are produced from living organisms.

In order to be considered a biofuel the fuel must contain over 80 percent renewable materials.

Geothermal energy is the heat from the Earth.

Resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the Earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma.

Geothermal heat pumps can tap into this resource to heat and cool buildings.

A geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building.

In the future, civilization will be forced to research and develop alternative energy sources.

Possession of surplus energy is, of course, a requisite for any kind of civilization, for if man possesses merely the energy of his own muscles, he must expend all his strength - mental and physical - to obtain the bare necessities of life.

Showing posts with label wind turbine for the home. Show all posts
Showing posts with label wind turbine for the home. Show all posts

Saturday, 2 August 2014

Cuba Boosts Use Of Renewable Sources Of Energy

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Cuba Boosts Use Of Renewable Sources Of Energy

BY CUBAN NEWS AGENCY

Tuesday 21 June 2011

HAVANA, Cuba, - The vice minister of the Basic Industry, Juan Manuel Presa, said on Monday that Cuba will continue to boost the use of renewable sources of energy, particularly eolic (wind) energy.

Speaking to ACN, Presa added that in Cuba there are currently 100 wind-meter stations to collect reliable wind data at a height of 50 meters in order to assess the existing potential in the country. In this regard, he noted that it is possible to immediately install equipment of up to 600 MW in the northern coast of the central and eastern regions of the island.

Today, there are four wind farms in Cuba with 20 wind turbines that contribute 11.7mw to the national system and, according to studies, several farms could be created with a potential of more than 2,000 MW.

Tania Carbonel, director of the Center for Studies on Renewable Energy Technologies, of Havana's Jose Antonio Echeverria Polytechnical Higher Institute, said that wind energy has many advantages. "It is very cheap and clean because it produces no air or water pollution since no fuel is burned."

Carbonel added that recent high fossil fuel prices and the problem of pollution, has accelerated the research in the direction of alternative energies.

Major users of eolic power are Denmark, Spain, Portugal, Germany, Ireland, India, China and the United States. In some of these countries it provides nearly 10% of total electricity production.

According to the World Wind Energy Association, it is difficult to assess the total number or capacity of small-scaled wind turbines, but in China alone, there are roughly 300,000 small-scale wind turbines generating electricity.
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