More than 135 members of Electrical Workers (IBEW) Local 440 have worked on a $500 million project in the Southern California desert that represents the future of energy storage. The Desert Peak Energy Storage facility houses 459 identical shipping containers stacked floor to ceiling with lithium-ion batteries, which will be enough to provide power to more than 265,000 homes for up to four hours. Once completed, the 400-megawatt (MW) project will be the largest battery storage facility in the country, replacing the Crimson Energy Storage facility, also built by IBEW Local 440.