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 power jobs. Show all posts
Showing posts with label wind power jobs. Show all posts

Friday, December 25, 2009

Gabriel And Steinmeier Defend Energiewende At Climate Conference

Critics argue that Germany's energy transition is too risky. But in Berlin, Economic Affairs Minister Sigmar Gabriel, and Foreign Minister Frank-Walter Steinmeier promised that renewables will foster a greener lifestyle, and create prosperity. EurActiv Germany reports.

Climate protection, security of supply and economic growth all fit together, said Frank-Walter Steinmeier on Thursday (26 March).

The Social Democrat made the opening statement at an international conference on climate change in Berlin.

The goal of the meeting was to make the concept of a renewable energy supply palatable for as many countries as possible from all over the world - and not only with arguments promoting climate protection.

"Not only should more people live more safely and cleanly, but also more prosperously", Sigmar Gabriel pointed out, emphasising the main goal of the Energiewende.

Research and innovation play an important role in this, he said, for German companies domestically and those who develop the energy market abroad for innovative, efficient and climate-friendly products.

MANY INSECURITIES


Germany is giving up nuclear energy; in 2022 the last atomic power plant will leave the grid. But several questions remain: Will renewables be enough to cover Germany's remaining energy needs? Is energy security guaranteed? Is there a threat of rising prices?

Because of these questions, many countries remain sceptical of the concept of renewable energy sources. So far, only a few have pushed the transition as far as Germany, which currently boasts a 27% share of renewable energy.

German representatives at the conference did their best to calm concerns. Abandoning nuclear energy is the only way, Gabriel emphasised, from an economic perspective.

In this day and age, the Economic Affairs Minister said, nuclear energy is the most costly and nonsensical form of power generation. While nuclear energy employed around 30,000 people at its peak, renewables have already created 300,000 jobs to date, he indicated.

GERMANY AS A ROLE MODEL


"Only renewables are able to shift our energy supply to one without CO2, while guaranteeing security of supply and strengthening local added value," said Fritz Brickwedde, president of the German Renewable Energy Federation (BEE).

Germany has already served as a role model, in that the Energiewende is an innovative motor for industry and the mid-sized sector.

Brickwedde's words are not only backed up by the number of workers in the sector, but also the amount of investment in renewable energy sources. The latter increased from almost EUR5 billion in 2000 to EUR19 billion in 2014.

In addition, the number of patents registered in this sector increased five-fold between 2005 and 2013 to 2,000 new patents.

ENERGY INDEPENDENCE IS POLITICAL INDEPENDENCE


Steinmeier also emphasised that sustainable energy supply is not only "the ideal solution to less emissions". They also mean ending dependence on imports and thereby removing the option of using energy to exert political pressure.

Because, Steinmeier pointed out, "every country can produce renewables on its own".

Germany still spends large sums on importing crude oil, natural gas and hard coal. In 2012, import costs ran as high as EUR90 billion.

To reduce this dependence and still reach its self-defined climate targets, Germany seems determined to continue pushing the Energiewende. But nine months before the climate conference in Paris, pressure on Berlin is growing. By 2020, emissions are planned to be reduced 40% compared to 1990 levels.