Energy Vault的EVx储能系统可与抽水蓄能相媲美,在供应充足的情况下使用电网规模的可再生能源来驱动电机,并将30吨重砌块(而不是水)的六臂起重机塔提升到一定高度。当需要将电力送回电网时,这些砌块会降低,从而收集动能。
在2020年价格的基础上,全球太阳能价格平均每千瓦时下降了13%,因为去年约三分之二的新增可再生能源发电装机容量比成本最低的化石燃料替代品还要便宜。
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