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国际能源署(IEA):太阳能或将在2050年前成为电力的主要来源
国际能源署(IEA):太阳能或将在2050年前成为电力的主要来源
2014/10/1 9:26:57 | 浏览:5332 | 评论:0

     国际能源署(IEA)周一(29日)在报告中表示,太阳能在2050年前可能将成为电力的主要来源,受助于发电设备成本大跌。

  IEA报告表示,2050年前太阳能光伏(PV)系统将最多为全球贡献16%的电力,来自太阳能发电厂的太阳能热力发电(STE)将提供11%的电力。

  “过去几年光伏模块和系统的成本快速下跌,开启了未来几年和几十年利用太阳能作为电力主要来源的新前景。”IEA总干事范德胡芬称。

  太阳能光伏面板自2000年以来在全球范围内成为发展最快的再生能源技术,不过太阳能在全球能源总量中所占比重仍不到1%。

 

  IEA称,太阳能光伏的扩张将由中国引领,位居其后的是美国,太阳能热力发电可能将在美国、非洲、印度和中东得到发展。

IEA:Sun may be our main energy source by 2050

Solar power could trump alternatives like fossil fuels, wind, hydro and nuclear to be the world's largest source of electricity by 2050, according to a prominent energy watchdog.

The International Energy Agency(IEA), which is best known for its monthly oil updates, published two reports on Monday detailing how greater use of solar energy could radically cut the need to use polluting carbon dioxide. The Paris-based agency said that if countries embraced solar energy, carbon dioxide emissions could be cut by more than 6 billion tons per year by 2050.

By the middle of the century, solar photovoltaic systems and solar thermal electricity combined could potentially have total capacity of 4,600 gigawatts, the IEA forecast. This compares to just 154 gigawatts in the early part of 2014.

Read MoreSolar:The future of energy?

Some countries already use a diverse mix of energy and have stringent goals to reduce carbon dioxide emissions to negate the effects of climate change.

国际能源署(IEA):太阳能或将在2050年前成为电力的主要来源
Source:Department of Energy | Flickr
Teams gather for the Department of Energy's Solar Decathlon competition.

Earlier this month, government heads and business leaders attended a United Nations summit in New York on climate change, and discussed "bold new actions" to tackle the issue. Plus, the European Union aims to cut emissions by 2020 to 20 percent below levels seen in 1990.

In its reports, the IEA detailed how governments should set about reforming energy policy—and some pitfalls to avoid. It called for "clear, credible and consistent" signals from policy makers on solar power, in order to lower deployment risks for investors and inspire confidence.

Read MoreStrange bedfellows:Solar power meets oil drilling

"Where there is a record of policy incoherence, confusing signals or stop-and-go policy cycles, investors end up paying more for their investment, consumers pays more for their energy, and some projects that are needed simply will not go ahead," IEA Executive Director Maria Van der Hoeven said in a press release about the reports on Monday.

Of the two forms of solar energy discussed by the IEA, solar photovoltaic systems are probably the most widely known, in the form of the solar panels that some homeowners install on their roofs. The could generate up to 16 percent of the world's electricity by 2050, according to the IEA, with China leading the way as the price of panels continues to fall.

Read More10 innovations that changed the world

Solar thermal electricity, meanwhile, works by focusing the sun's light energy and converting it into heat to create steam that drives a turbine. The could provide 11 percent of the world's energy by 2050, according to the IEA.

Warren Buffett is one high-profile investor that is betting big on solar technology, among other energy investments. Buffett said this June at the Edison Electric Institute annual conference that his company was ready to double its $15 billion commitment to wind and solar power.

 

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