Compared with gas turbines? The main reason power is supply constrained is that gas turbines are a precision high-tech product that fails catastrophically if you don't build it right and maintain it.

Bloom fuel cells are a plausible alternative, but they are in the process of building out their manufacturing capacity, and operating experience at data center scale hasn't been tested. Bloom's process also involves extremely high temperatures, which could result in uptime and maintenance issues.

Which is why just about everyone is saying that a mix of energy sources, such as combing solar with wind, is a good thing.

Is the point of the battery not to add 9s with solar?

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