Envision pushes energy storage density to new highs with 8 MWh, 20-foot container
From ESS News
Shanghai-headquartered Envision Energy launched its latest grid-scale energy storage system at the third Electrical Energy Storage Alliance (EESA) Energy Storage Exhibition held in Shanghai this week. The product’s energy density stands at 541 kWh/㎡, making it the leading one in the industry to date.
The product release follows the launch of the 6.25 MWh energy storage system by CATL in April and several other companies launching 6 MWh+ storage systems packed in a standard 20-foot container, ushering in a new energy density era for the battery energy storage systems.
However, Envision’s latest product far surpasses all earlier system-level achievements. It packs more than 8 MWh using 700 Ah lithium iron phosphate battery cells made by Japan-headquartered AESC, in which Envision holds a majority stake.
“We made a huge jump from 315 Ah battery cells used in our previous generation products to 700 Ah and we did this to lower the cost on the system level,” a company representative told ESS News at the show in Shanghai.
The latest generation product has an energy density of more than 440 Wh/l, a roundtrip efficiency of 96%, and a cycle lifetime of nearly 16,000 charge-discharge cycles.
The liquid-cooled system has a voltage range from 1500 V – 2000 V and is configurable for storage durations of two to eight hours. The container weighs around 55 tons.
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Hi! Which inverter can use 2kV DC? Any ideas? Thanks in advance. I only know 1.5kV so far.
A solution with H2 fuel cells would need only about 500 kg of hydrogen (and a fuel cell depending on the desired power) for the 8 MWh of energy.
And how many kWh do you need to produce these 500kg of H2 ?
What is the degradation?
“The liquid-cooled system has a voltage range from 1500 V – 2000 V and is configurable for storage durations of two to eight hours. ” so I can storage this energy only for 8 hrs max?? Or what?
The weight is almost twice the allowed shipping container weight in all the world ports or roads. So despite being in the shape of a shipping container it cant be transported as such.
Also wondering about the 2kV DC inverter