首页
登录
职称英语
Almost 150 years after photovoltaic (光电的) cells and wind turbines (涡轮机) were
Almost 150 years after photovoltaic (光电的) cells and wind turbines (涡轮机) were
游客
2024-01-27
38
管理
问题
Almost 150 years after photovoltaic (光电的) cells and wind turbines (涡轮机) were invented, they still generate only 7% of the world’s electricity. Yet something remarkable is happening. From being secondary to the energy system just over a decade ago, they are now growing faster than any other energy source and their falling costs are making them competitive with fossil fuels. BP, an oil firm, expects renewables to account for half of the growth in global energy supply over the next 20 years. It is no longer far-fetched to think that the world is entering an era of clean, unlimited and cheap power.
There is a problem, though. To get from here to there requires huge amounts of investment over the next few decades. Normally investors like putting their money into electricity because it offers reliable returns. Yet green energy has a dirty secret. The more it is used, the more it lowers the price of power from any source. That makes it hard to manage the transition to a carbon-free future, during which many generating technologies, clean and dirty, need to remain profitable if the lights are to stay on. Unless the market is fixed, subsidies to the industry will only grow.
Policymakers are already seeing this inconvenient truth as a reason to put the brakes on renewable energy. In parts of Europe, investment in renewables is slowing as subsidies are cut back. However, the solution is not less wind and solar. It is to rethink how the world prices clean energy in order to make better use of it.
At its heart, the problem is that government-supported renewable energy has been imposed on a market designed in a different era. For much of the 20th century, electricity was made and moved by vertically integrated, state-controlled monopolies. From the 1980s onwards, many of these were broken up, privatized and liberalized, so that market forces could determine where best to invest. Today only about 6% of electricity users get their power from monopolies. Yet everywhere the pressure to decarbonize power supply has brought the state creeping back into markets. This is disruptive for three reasons. The first is the subsidy system itself. The other two are inherent to the nature of wind and solar: their intermittency and their very low running costs. All three help explain why power prices are low and public subsidies are addictive. [br] Why are policymakers unwilling to develop renewable energy?
选项
A、It needs a large amount of subsidies from the government.
B、It is inconvenient to manufacture wind turbines and solar cells.
C、Green energy will bring negative influence on coal power plants.
D、The government needs to subsidize many other public services.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3399732.html
相关试题推荐
[originaltext]Almosttwo-thirdsofchildrenwanttheirparentstospendmore
[originaltext]Almosttwo-thirdsofchildrenwanttheirparentstospendmore
[originaltext]Almosttwo-thirdsofchildrenwanttheirparentstospendmore
[originaltext]Almosttwo-thirdsofchildrenwanttheirparentstospendmore
[originaltext]Almosttwo-thirdsofchildrenwanttheirparentstospendmore
[originaltext]Almosttwo-thirdsofchildrenwanttheirparentstospendmore
[originaltext][16]America’snationalsymbol,thebaldeagle,almostwentextin
[originaltext][16]America’snationalsymbol,thebaldeagle,almostwentextin
[originaltext][16]America’snationalsymbol,thebaldeagle,almostwentextin
[originaltext]WhatmakesDisneyparksanalmostuniversalattraction?[22]What
随机试题
—Lookattheformbelow.—Youwillhearamanenquiringaboutcomputerworksta
A.sothatB.preferenceC.normalD.circleE.
下列战略中属于基本竞争战略的是()。A.相关多元化战略 B.集中战略
女性,52岁,腹部阵发性胀痛1天,呕吐为胃内容物,近3个月来有时腹胀,大便带黏液
中华人民共和国公民对于任何国家机关和国家工作人员的违法失职行为,有向有关国家机关
腹痛啼哭而将睾丸收引入腹者,俗称"走肾",多是()A.肾气不足 B.肾阳
妇科肿瘤患者需化疗,护士用药时不应()A.认真核对 B.正确溶解和
复发性口腔溃疡的发病因素不包括A.遗传因素 B.免疫功能异常 C.超氧化物歧
根据规范的规定,安装在室内的lOkV装配式高压电容器组,下层电容器的底部距地面
【背景资料】 某安装公司承包某分布式能源中心的机电安装工程,工程内容有:冷水机
最新回复
(
0
)