The need for growth in electricity storage is so crucial for clean energy that it got a passing mention even in Pope Francis' "encyclical" in May this year - an influential letter on climate change and global poverty addressed to all human beings. The International Energy Agency had said a few months earlier that to support global electricity sector decarbonisation, an estimated 310 GW of additional grid-connected electricity storage capacity would be needed in the United States, Europe, China and India. What's clear is this: if the world wants to keep climate change well below a 2 degree increase over pre industrial temperatures - widely seen as a key threshold to avoid the most catastrophic impacts - then solar photovoltaic and wind power need to penetrate electricity markets much more deeply. A lot of innovation is therefore needed in demand side integration, storage and smart grid infrastructure.
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机译：蓄电需求的增长对清洁能源至关重要，甚至在今年五月的弗朗西斯教皇的“周期性报告”中也得到了提及。这是一封关于气候变化和全球贫困问题的有影响力的信，针对所有人。国际能源署（International Energy Agency）几个月前曾表示，要支持全球电力部门的脱碳，美国，欧洲，中国和印度估计需要增加310 GW的并网储电容量。显而易见的是：如果世界希望将气候变化的温度保持在比工业化前的温度高2度以下-人们普遍认为这是避免发生最严重灾难性影响的关键门槛-则太阳能光伏和风能需要进一步渗透电力市场深。因此，需求方集成，存储和智能电网基础设施需要大量创新。
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