????“為了應(yīng)對(duì)氣候變化，我們需要加大對(duì)可再生能源系統(tǒng)的利用，”這項(xiàng)研究的參與者之一、國(guó)際應(yīng)用系統(tǒng)分析研究所研究員費(fèi)邊?瓦格納說(shuō)。“但關(guān)鍵問(wèn)題是，可再生系統(tǒng)真正能夠生產(chǎn)多少能源?！?/p>

????大規(guī)模部署太陽(yáng)能的一個(gè)重大挑戰(zhàn)是，太陽(yáng)并不是在所有時(shí)間都當(dāng)空高照。這就意味著，能量必須要通過(guò)某種方式存儲(chǔ)下來(lái)。對(duì)于直接將太陽(yáng)光轉(zhuǎn)換為電能的光伏電池來(lái)說(shuō)，這是特別難以克服的困難，因?yàn)殡娏茈y儲(chǔ)存。（財(cái)富中文網(wǎng)）

????譯者：葉寒

????“In order to address climate change we need to greatly expand our use of renewable energy systems,” said IIASA researcher Fabian Wagner, who also worked on the study. “The key question, though, is how much energy renewable systems can actually deliver.”

????A huge challenge with deploying solar energy on a large scale is that the sun doesn’t shine all the time. That means that energy must be stored in some way. For photovoltaic (PV) cells, which convert sunlight directly to electricity, this is especially difficult to overcome, because electricity is difficult to store.