The liquid desiccant that Blue Frontier uses can be stored inside the air conditioning machine in a small plastic tank, essentially storing the cooling capacity to be used when it’s most needed. That’s critical for a decarbonizing grid that will be increasingly dependent on renewables, like wind and solar, which are both intermittent sources of energy.
“The storage also allows us to consume the bulk of our energy when renewable energy is abundant and when electric grid congestion is low. We avoid consuming electricity during peak demand periods that are powered by fossil fuel peaking plants,” Betts told CNBC.
Ah, so they basically charge up the desssicant at night when demand is low, and then use that during the day. It's akin to a battery.