How many gigawatts we talking? The largest grid scale battery ever built will deliver 1.2GW per hour. I'd say 20 of those would certainly do the trick, and the

How many gigawatts we talking? The largest grid scale battery ever built will deliver 1.2GW per hour. I'd say 20 of those would certainly do the trick, and then some. Might be able to get by with 10 or so. They would save rate payers a bucket of money as well; the largest grid scale battery ever built that you mention is projected to offer cost savings of $100 million over its 20 year lifespan versus the alternatives; not bad at all. As far as the up front cost, it's pocket change for a state like Texas, and they could use it in the summer as well.