The key draw of hydrogen is its cost-effectiveness at longer durations. For a completely resilient, 100% renewable data center with zero emissions, using hydrogen would translate to a levelized cost of electricity amounting to $119 per MWh, said Jack Brouwer, a professor of mechanical and aerospace engineering at the University of California, Irvine. … "Lithium-ion batteries are cheaper for short-duration storage, and they're more efficient. But eventually, when you have longer amounts of storage duration required, there will be a crossover point," where hydrogen becomes cheaper, Brouwer said. Read More