Because solar on the roof won’t even be noticable against their power footprint. Given current practices, each square foot of a datacenter would need about 1,000 times more square footage worth of solar.

But (as I’m sure you realize) this would mean every watt from on-premises solar could get put to use immediately, no batteries, no power-grid buy-back schemes. Making those solar panels an unusually good investment.

Unless they’re not planning to keep it running for very long.

It smells un-serious, somehow.