The cost of batteries has gone down somewhere between 60-80% over the previous 10 years (and my understanding is that trend is expected to continue due to a combination of new technologies (e.g. Sodium Ion) and increased scale). So that one seems totally reasonable. A little conservative if anything.

I can't comment on the cost of Gas Turbines.

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sroussey 2 hours ago | parent [-]

No one believes that the increased demand for gas turbines is durable enough to want to make those kinds of investments.

But the opposite is true for batteries.

	▲	grumbelbart2 2 hours ago \| parent [-]
		Battery tech and production methods are still evolving and improving way faster than turbine tech and production. Meaning this is more than just production capacity.