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Wind power in the United States is a branch of the energy industry, expanding quickly over the last several years. Construction of new wind power generation capacity in the fourth quarter of 2012 totaled 8,380 megawatts (MW) bringing the cumulative installed capacity to 60,007 MW.[1] This capacity is exceeded only by China.[2] For the 12 months until July 2013, the electricity produced from wind power in the United States amounted to 157.8 terawatt-hours, or 3.91% of all generated electrical energy.[3]

Research has shown that with current technology, renewable energy sources like wind, solar, and geo-thermal can provide almost all of our primary energy demand.

Tidal turbines look like wind turbines. They are arrayed underwater in rows, as in some wind farms. The turbines function best where coastal currents run between 3.6 and 4.9 knots (4 and 5.5 mph). In currents of that speed, a 49.2-foot (15-meter) diameter tidal turbine can generate as much energy as a 197-foot (60-meter) diameter wind turbine. Ideal locations for tidal turbine farms are close to shore in water 65.5–98.5 feet (20–30 meters) deep

Solar technologies produce few negative environmental impacts during collector operation.

Solar energy, radiant light and heat from the sun

radiant light and heat from the sun,

Windmills were first used to grind grain anywhere from 2000 to 4000 years ago in ancient Persia or Babylon;

The initial use of wind power was by Egyptians in 3000 B.C. to move their sailboats.

Waves are caused by the wind blowing over the surface of the ocean

. Ocean waves contain tremendous energy potential. Wave power devices extract energy from the surface motion of ocean waves or from pressure fluctuations below the surface.  

Wind power is produced by using wind generators to harness the kinetic energy of wind. It is gaining worldwide popularity as a large scale energy source, although it still only provides less than one percent of global energy consumption. The articles listed below explore wind power and its usage around the world.

Burning fossil fuels creates carbon dioxide, the number one greenhouse gas contributing to global warming. Combustion of these fossil fuels is considered to be the largest contributing factor to the release of greenhouse gases into the atmosphere. In the 20th century, the average temperature of Earth rose 1 degree Fahrenheit (1°F). This was a period that saw the most prolific population growth and industrial development

Some estimates say our fossil fuel reserves will be depleted within 50 years, while others say it will be 100-120 years.

Biodiesel is a type of bio-fuel which is used to fuel cars and other vehicles. Biodiesel is used as alternative petroleum oil. Biodiesel is special because it is a clean resource and is safe to use in our environment, compared to other fuels that pollute the planet. Biodiesel is made from renewable resources which make it easier to produce. Biodiesel also lubricates car engines, which decreases engine wear, making the engine last longer. Speaking of engines, biodiesel is compatible with most car engines that run on diesel. According to researchers, biodiesel can reduce the risk of cancer, which the emitting of petroleum oil have been known to cause.

A wind turbine gathers energy from the wind through the mechanical rotation of its blades. This is mechanically generated energy from kinetic energy that is then turned into electrical energy.

Fatty acid methyl esters (FAME), known as biodiesel, are products of plant or animal origin whose composition and properties are defined by the European Union in standard EN 14214. There is an exception for the iodine value for Spain, which has been established as 140 rather than the 120 proposed by standard EN 14214.

Technological developments are continually lowering the material and component cost of fuel cells and production is being ramped up and automated, allowing economies of scale to be realised.

During the first half of 2008, the United States, for the first time, generated more wind energy electricity than Germany, despite the fact that the smaller European country still has more turbines than we do. Germany has enough turbines to collect about 22,000 to 23,000 megawatts of power, while the United States has a capacity of about 18,000 megawatts,

A century ago, Henry Ford’s first car ran on alcohol, while Rudolf Diesel fired his namesake engine with peanut oil. But both inventors soon discovered that “rock oil,” when slightly refined, held far more bang per gallon than plant fuel, and was cheap to boot. Oil soon left plant fuels in the dust. Only in periods of scarcity—like the OPEC oil embargo of 1973—did the U.S. and other countries turn back to ethanol, mixing it into gasoline to stretch supplies.

A century ago, Henry Ford’s first car ran on alcohol, while Rudolf Diesel fired his namesake engine with peanut oil. But both inventors soon discovered that “rock oil,” when slightly refined, held far more bang per gallon than plant fuel, and was cheap to boot. Oil soon left plant fuels in the dust. Only in periods of scarcity—like the OPEC oil embargo of 1973—did the U.S. and other countries turn back to ethanol, mixing it into gasoline to stretch supplies.