This entire article seems to be based on an assumption that the cost of batteries will go down 33% over the next 10 years because demand is so high, but costs of gas turbines will go up over the next 10 years because demand is so high.
Neither of these assumptions are based on anything other than "That's the number we had to put in to the model to get the conclusion we want".
Neither of these assumptions are based on anything other than "That's the number we had to put in to the model to get the conclusion we want".