[강남(수)10:30-1:00] News시사영어토론(정치/문화/교육/경제)  

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[2] Article Two - read together and Discuss about it on your own opinion

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[1교시] Economist Article 1

[2교시] Economist Article 2

[3교시] Debate Pros and Cons

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 http://www.economist.com/news/leaders/21660124-wind-and-solar-energy-are-increasingly-competitive-lot-has-change-they-can-make?frsc=dg%7Cd

The Economist

Renewable energy

Puffs of hope 한줄기 희망

Wind and solar energy are increasingly competitive. But a lot has to change before they can make a real impact

Aug 1st 2015 | From the print edition

[1] ON THE afternoon of July 25th renewable generators fulfilled about 78% of Germany’s domestic demand. Such a remarkable figure, combined with news of booming wind industries in America (see article) and China (article), might lead you to think that the renewables revolution is more or less victorious, with the world moving forward into the broad, sunlit—and windy—uplands 고지대 of copious clean/청정 energy. Alas, this is not the case. 현실은 다르다

[2] In some places wind turbines and solar cells are now a cheaper way of generating electricity than fossil fuels are. And in a lot of others subsidies and regulatory requirements encourage their use regardless. But despite this progress, bought at great expense, renewables other than hydropower still provide less than 3% of the world’s energy. The impressive growth of wind power lags behind the rate that the International Energy Agency (IEA), a Paris-based intergovernmental think-tank, suggests is necessary for the world to have a good chance of limiting global warming to less than 2°C. That two-degree scenario requires the world to generate 11 times more wind power by 2050, and 36 times more solar power. And it requires a big helping of new nuclear power, too. If, like German Greens and many others, you would rather do without that helping hand, the requirement for further renewables becomes yet more far-fetched. 설득력없는

[3] The most equitable공정 and straightforward way to move towards more low-carbon energy would be a global system of steadily escalating carbon taxes. In the absence of such an enlightened policy, 진보한정책 though, there are other ways to encourage the spread of renewables.

[4] Removing subsidies around the world on fossil fuels is one of them. Another is increasing public investment in low-carbon energy research. Research into renewable energy, storage systems and energy transmission accounts for only about 1% of government R&D spending in rich countries. This has meant that the renewables boom of the past decade, especially in the case of wind, has been mostly a come-as-you-are affair: big subsidies for the deployment of today’s technology but very little spent on tomorrow’s.

[5] The design of electricity markets matters, too. The best way to finance renewable energy is by creating predictable demand, which attracts institutional investors대규모자금운용사. That usually means long-term fixed-price contracts, allocated by auction. These schemes are working well, particularly in emerging markets, where all extra power is welcome. In mature ones renewables need to displace existing capacity, which is trickier.

[6] There are further problems to overcome. Germany’s record-breaking afternoon was a windy one in the north of the country, where most of the turbines are, and a sunny one in the solar-cell-covered south. Such happy coincidences have obverses 정반대상황—dark, windless winter evenings—that need to be planned for. This requires a balance of storage capacity, backup power and interconnections between electric grids.

[7] In places like Scandinavia and Brazil hydroelectric 수력 and wind power work well together. Gas-fired power stations, cheap to build and comparatively low in their emissions, are also good. But it is hard to get people to build gas-fired power stations that will not be used very much—which in markets with a lot of renewables is their inevitable fate. In Germany the renewables boom has paradoxically seen gas edged out by 몰아낸 cheaper but much dirtier lignite. 갈탄

[8] Provision for backup capacity has to be part of any policy that gives renewables a large role. So do technology and pricing regimes that make it easy for people and industry to use less power when the grid is running on fossil fuels and more when the wind is up and the sun shining. And those grids themselves need attention; renewables benefit from big grids that can bring electricity from distant sunny and windy places.

[9] A policy of expanding and interconnecting grids typically works against the interests of some producers, by eroding the ability of incumbents to extract rents. 힘들게 얻어내다 It also gives politicians less scope to interfere with their national and local energy systems. But it is vital if renewables are to flourish.