LS Power’s 250 MW Gateway project has been advertised as the world’s largest battery storage system (BSS). The Gateway project is located in San Diego, California. According to PV-Magazine, while still the largest operational storage project in the world, the Gateway project still hasn’t achieved its maximum capacity. It currently sits at 230 MW of operational capacity, with the last 20 MW set to come online as soon as possible.
The dominant technology for BSS is the lithium-ion (Li-ion) battery. After its first commercially debut in the electronic industry by Sony in 1991, Li-ion price has witnessed an 85% reduction since 2010. This is the key driver of this dominance.
Utility-scale BSS has become quadrupled from 2014 to 2019 in the United States. Battery storage based on Li-ion technology is a suitable solution for utility-scale renewable projects. Due to the intermittent power generation of renewable energy, BSS solutions such as utility-scale battery storage is appropriate to store excess generated electricity from solar and wind in hot and windy hours of daytime to consume in cold and calm hours of nighttime.
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