據(jù)油價(jià)網(wǎng)2021年7月14日?qǐng)?bào)道，美國(guó)能源部7月14日宣布了一個(gè)新的目標(biāo)，在未來10年內(nèi)通過將電網(wǎng)規(guī)模的長(zhǎng)期能源儲(chǔ)存成本降低90%，以支持更多的風(fēng)能和太陽能在電網(wǎng)中的推廣。
美國(guó)能源部的計(jì)劃有非常雄心勃勃的目標(biāo)，要加速技術(shù)上的突破，使清潔電力的儲(chǔ)存能夠隨時(shí)隨地使用。 分析人士表示，2030年將鋰離子電池的成本比現(xiàn)在低90%的目標(biāo)并不容易實(shí)現(xiàn)。
政府的目標(biāo)是不遲于2035年建立無碳污染的電力行業(yè)。 這本身就是一個(gè)巨大的挑戰(zhàn)，因?yàn)樵?020年，天然氣占美國(guó)公用事業(yè)規(guī)模發(fā)電量的40.3%，化石燃料占60.3%，而煤炭占電力結(jié)構(gòu)的19.3%。
美國(guó)能源部長(zhǎng)詹妮弗·格蘭霍姆7月14日宣布了這個(gè)到2030前將長(zhǎng)期能源儲(chǔ)存成本降低90%的目標(biāo)：
“在未來幾年內(nèi)，我們將把數(shù)百吉瓦的清潔能源引入電網(wǎng)，我們需要能夠隨時(shí)隨地使用這些能源。“
格蘭霍姆補(bǔ)充說：“這就是為什么美國(guó)能源部正在積極致力于更廉價(jià)、更持久的能源儲(chǔ)存，以實(shí)現(xiàn)目標(biāo)，即到2035年前實(shí)現(xiàn)100%的清潔電力。”
內(nèi)斯特·塞普爾韋達(dá)日前在接受《紐約時(shí)報(bào)》采訪時(shí)表示：“這些成本目標(biāo)并不容易實(shí)現(xiàn)，盡管它們與許多開發(fā)者的目標(biāo)一致。” 塞普爾韋達(dá)是麻省理工學(xué)院的研究員，最近他領(lǐng)導(dǎo)了一項(xiàng)關(guān)于能源儲(chǔ)存成本的研究。
塞普爾韋達(dá)補(bǔ)充說：“目前的一個(gè)大障礙是，沒有政策要求公用事業(yè)公司建立長(zhǎng)期能源儲(chǔ)存。 簡(jiǎn)單地燃燒天然氣更容易、更便宜。”
與此同時(shí)，美國(guó)儲(chǔ)能市場(chǎng)正在蓬勃發(fā)展，據(jù)伍德麥肯茲和美國(guó)儲(chǔ)能協(xié)會(huì)的最新估計(jì)，今年第一季度，新儲(chǔ)能系統(tǒng)上線910兆瓦時(shí)(MWh)。 這一數(shù)字比去年第一季度增長(zhǎng)了252%，成為美國(guó)儲(chǔ)能市場(chǎng)迄今為止最大的第一季度。
李峻 編譯自 油價(jià)網(wǎng)
原文如下：
U.S. Looks To Slash Long-Duration Energy Storage Costs By 90% By 2030
The U.S. Department of Energy announced on Wednesday a new goal to support the increased rollout of more wind and solar power in the grid by reducing the cost of grid-scale, long-duration energy storage by 90 percent within the decade.
The DOE initiative has very ambitious goals to accelerate breakthroughs in technology that could enable the storage of clean electricity to make it available anytime, anywhere. Analysts say that the target to slash costs 90 percent below today’s lithium-ion batteries within 2030 would not be easy to achieve.
The Administration targets a carbon pollution-free electricity sector no later than 2035. This in itself is a huge challenge considering that natural gas accounted for the largest share of U.S. utility-scale electricity generation in 2020, at 40.3 percent, with fossil fuels at 60.3 percent share, also due to coal’s 19.3-percent share of the power mix.
Announcing the goal of reducing the cost of long-duration energy storage by 90 percent by 2030, U.S. Secretary of Energy Jennifer Granholm said today:
“We’re going to bring hundreds of gigawatts of clean energy onto the grid over the next few years, and we need to be able to use that energy wherever and whenever it’s needed.”
“That’s why DOE is working aggressively toward cheaper, longer duration energy storage to reach? goal of 100% clean electricity by 2035,” Secretary Granholm added.
“Those cost targets won’t be easy to hit, although they’re in line with what many developers are aiming for,” Nestor Sepulveda, who led a recent study about storage costs as a researcher at the Massachusetts Institute of Technology, told The New York Times.
“One big obstacle right now is that there’s no policy requirement for utilities to build long-duration storage. It’s easier and cheaper to simply burn natural gas,” Sepulveda added.
Meanwhile, the U.S. energy storage market is booming, with 910 megawatt-hours (MWh) of new energy storage systems brought online in the first quarter of 2021, according to the latest estimates from Wood Mackenzie and the U.S. Energy Storage Association. The figure was a 252-percent jump over Q1 of last year, making it the biggest Q1 so far for the U.S. storage market.
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