Battery storage is delivering value for solar developers and energy consumers. But what about cost?

FORBES | COVID-19 has led to lock-downs. That, in turn, has led to less energy use, creating an opportunity for renewables to shine. They are becoming the lowest-cost energy source on sunny days, although during the evening when electricity demand is high, power prices are spiking. 


But there is a fix: utilities and onsite generators are using energy storage to harness the electricity during the day and release those electrons at night. Those batteries not only can limit the price spikes but they can also add value to solar farms. The twin goals are to increase renewable power usage and to provide electricity during peak demand. But the main obstacle is the high price of storage. The options? 


“If low electricity prices remain, what will it mean for future the grid and the electricity market?” asks Matt Harper, chief commercial officer for Invinity Energy Systems that makes “flow batteries.” “Battery storage can take advantage of abundant and low-cost power: it consumes excess power during the day and redeploys that electricity during the peak periods when conventional power generation would be turned on.” 


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