2010年11月19日星期五
Europe's desert energy dreams _ focuses on patient
The European dream of desert energy manuscripts: Southern Metropolis 2010- 06-06 compilation: Woo summary: in order to meet the growing needs of the new energy, the European project in the Sahara desert to build huge solar power station, built every year for the Europe 700 too WHr power, more than 100 nuclear power generating capacity. The Desertec project is able to avoid an energy crisis, stop climate change, eradicate poverty in Africa is ambitious. But that which is with obstacles, first of all, 4000 billion euros in cost so prohibitive. Andalucia's PS20 is the world's largest solar power Tower, power enough it produces 2 million households use. But the same principle of the Desertec project every year for the Europe 700 too WHr power. Spain Audre Sol solar power technology was invented 100 years ago in Egypt: made with parabolic trough mirrors, steam, and promote the steam pump. California's Mojave desert solar power Tower is surrounded by a large mirror, mirror reflection will be near the top of the Tower of sunshine to the receiver. Accumulation of heat is the pipeline in water heating, water vapour and promote the turbine generator. In order to meet the growing needs of the new energy, the European project in the Sahara desert to build huge solar power station, built every year for the Europe 700 too WHr power, more than 100 nuclear power generating capacity. The Desertec project is able to avoid an energy crisis, stop climate change, eradicate poverty in Africa is ambitious. But that which is with obstacles, first of all, 4000 billion euros in cost so prohibitive. When the sun rises over the remains thin, Andalucia, the future seems hazy. At this point, like the same rough tree trunks, as sharp as the laser light penetrates the mist. They are two tall tower top bottom position, one high tower high 162 m. These beams are not from UFO (unidentified flying object), which is the world's most advanced solar power station of core parts. Two tall tower is approximately 2000 side facing the Sun surrounded by mirrors. Each mirror's surface area is about 120 square meters, as they like sunflower, following the rays of sunlight reflected back to the tower at the top of the receiver. Aggregation of Sun energy can reach 250 ¡æ, penetrating the steel tube, internal water, steam and promote a turbine generator. This set of facilities named PS20, is the world's largest solar power Tower, generating sufficient supply 1 million households. This spring morning, 20 km west of Seville, sky blue, not a cloud. "Today is very easy," Enrique · Cyrus · Roldan said with satisfaction. Turbine hummed, solar power Tower is working at full capacity. Engineer Roldan's work is from the control room at the bottom of the Tower in supervised. Whenever a large clouds in the sky, he will immediately adjust the system to sunnier specular accept more. Everything is designed to harvest light. Install a huge blue cleaning brush trucks often in rows of mirror Middle roaming. Roldan "us 24 hours a day in the wipe clean. " Ideal cable lucar (Solúcar) power plant of solar power Tower from Spain Abengoa group, is today the most cutting edge solar industry. Scientists love this technology because it put the solar energy into electric energy efficiency is very high. Cable lucar is D esertec (desert technology) of a prototype. While the Desertec is the 21st century typical huge energy plans, intentions from the Sahara desert to the European supply of clean renewable solar energy. It claims to be able to avoid an energy crisis, stop global warming, while also eliminating poverty in Africa. It is not difficult to imagine that last summer, when the 12 companies made D esertec industrial plan, politicians and experts praise. These 12 companies, including Siemens, Deutsche Bank, Germany's energy giants Italy-RW group, E power companies. If this dream can become reality, they are eager to be a piece of the action. The Prime Minister from Germany, the European Commission President to ordinary people are excited for this plan. It is said that in 40 years for EuropeChau all taken from renewable energy sources, including some from the Sahara desert. For many people, this dream even more meaningful than the moon. However, its construction cost estimate as high as 4000 billion euros, is obviously more expensive than the moon. It is estimated that the future one day, Sahara desert power stations each year for the Europe 700 too WHr (1 too WHr is equal to 10 billion kWh) of electricity, more than 100 nuclear power generating capacity. Initially, this seems to break ground at once — funded by the Munich Reinsurance company, Deutsche Bank provides loans, Siemens company, a string of giant power station building. At least North Africa governments think so. "A major problem facing the Desertec because public expectations too high," Germany technical cooperation Council in North Africa Energy Affairs Coordinator Mike · enskat said, "where people think so : D esertec is coming, the European Council to throw billions euros here. ”现实但事实永远更加复杂。 Just go to Munich Desertec industrial plan office take a trip soon realized that the future is still far away. "At present we are just getting started, the Office is only one, to accommodate 8 people," the spokesman of the Desertec · Alexander Mohanty said. This Office is far too crowded, every time you want to go on to make a phone call, he is outside. Each participating company in each of the collective fund invest 15 million euros, on Siemens and RW E such a company was a passing mention of pocket money. D esertec CEO amiable man Paul · Netherlands · Sam van was the first to give people's expectations of "cold water we are investors," he said, "we are a project developer. ”那么他们到底是什么?“我们只是个点子,”范·桑说,“一个运动。 "For now, the sun worshippers busy lobbying Germany Government, EU and other European and Nordic countries, the Government, want to understand exactly what is needed, the Desertec to meet the conditions required to put this idea into a reality. Initial building programmes also in the design. Desertec's launch companies want to invest, but the prerequisite is to market and price undertakings, and the World Bank and the climate fund, support and guaranteed. If you do not have a taxpayer and energy consumers money, will not be able to realize the Desertec. It also depends on the EU country with a unified European energy policy to replace a variety of national policies. It also needs to find and Libya and other countries of North Africa. Morocco was selected as the next few years, the first phase of the implementation of the pilot project. Not only 12 Desertec company, anyone can participate in the project bid. Experiment plan to achieve improved technology to reduce cost of purpose, will be able to start a new round of bidding. Even then, the massive power stations still Desertec. If the programme prove successful large construction started, is feasible, nor will it be to several billion watts of power. More likely to have hundreds of medium-power station, from various parts of the desert, they funded a number of different investors. Even these small power station D affixed esertec sign is similar to some of the "environment certificate". Power station of investors and builders are the others. "We are the pioneer," van · Hassan said, "and then we'll put all the stuff to market. " This perhaps is not something that people might think that expensive project, but more practical , RW E renewable energy leader Fritz · vahrenholt said. D , he said esertec plan of "exaggerated optimism," let him feel confused. He did not think that, in just 15 years, the Sahara desert solar is sufficient to meet the energy needs of much of Europe. Even so, Valentin Holt said , RW E now on this project obviously greater confidence. Competitiveness cause optimism is mainly due to solar thermal technologies may soon be competitive. Experts estimate that the current solar power costs per kilowatt hour for 20 euro, over the next decade will be cut in half. This will allow the use of solar thermal technology for production of electrical energy than today's windPower your almost 2 times (the current wind power costs about 6 euro per kilowatt hour), but better than solar panels used in PV technology many cheaper. However, PV is a major obstacle to Desertec, because it consumes the potential funding. In the next 20 years, since 2000, enacted the law on renewable energy, photovoltaic power generation could spend approximately 1000 Germany consumer billion euros. This Act requires that Germany's power grid Corporation must make renewable energy out of the electric power grid inside incorporated into, and incorporated in the price is fixed, equivalent to a regular price of a few times. But also in Germany, energy subsidies mode is the end user to pay the Bill, the Government's financial and power companies not fished. Neither the wind or solar, all integrated into the price per once inside, this section, pay by the end user. Results are, who consume more energy, who on the magnitude of the renewable energy subsidies. Although Germany PV accounted for only 1% of the electricity supply, Valentin Holt said, "but if the money is invested into the Desertec, will be able to take advantage of the prices much more power. " " I think he was a pioneer of PV, so this technique is preferred, but the Government for its support completely out of control, "Kassel Fraunhofer wind power and energy systems technology Institute, Jurgen · Schmidt said," we will be endless money for an expensive technology, although there is also the same clean, no emission of another cheaper technology to choose from. " Schmidt, dreaming of the next day, Europe cannot rely entirely on wind energy, solar power from North Africa and from Norway's hydro power meets all energy needs. He said that it fully every kilowatt hour 4-5-minute price. "Then we will have absolute superiority. "