VC Sarah Guo Seeks Debate on Solar-Battery Versus Nuclear Power for Data Centers
Some users welcomed Sarah Guo's proposed debate on solar-battery versus nuclear power for data centers as much-needed and worth attending, while others dismissed it as unnecessary since renewable limitations are already well known.
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before someone @ me, yes I understand that there are cloudy days sometimes and they have different generation profiles and solar might need overbuild/diesel backup etc. that’s the point of the debate
has anyone hosted a debate on solar+batteries vs nuclear for datacenter power generation?
(both would be good, but curious)

@saranormous I think the solar + batteries vs nuclear debate is far less interesting than the grid-connected vs islanded/shadow grid debate

@saranormous The debate might depend more on time horizon than technology.
The best long-term solution isn't always the best next-year solution.
Solar + batteries can scale much faster today.
Nuclear may be the better answer if you're planning infrastructure for the next 30–50 years.

Unless you’re talking about 7-10+ years out this isn’t a debate. Nuclear literally wouldn’t come online in time in nearly any major market that’s building out a ton of data centers ex-China. So for the most interesting period for DCs - next 3-5 years - one side literally won’t contribute from a greenfield site contribution basis.
So, depends on what you’re trying to legitimately ask. Nuclear only relevant for this debate if you’re talking about longer-term power needs (and need to entertain government support to backstop and get the projects built) which is a separate debate about power needs (DCs smaller contributor the further you get out). So if it’s the near term power scarcity argument, better off chasing different avenues.

@saranormous Much-needed. I’d love to attend if one is organized. Can you organize one?

@saranormous There is not much to debate. Limitations on solar and wind as they relate to utility deployment are well known for about a decade (I know, I used to write about it a decade back). You can ask any decent AI any question you want on the subject and you will get decent answers.

@saranormous Solar panels got 10x cheaper. That's not the bottleneck anymore.
Overbuild + batteries are. Most ROI models undercount battery costs.
For grid-scale, that's the math that actually matters.

@saranormous Would imagine cost, speed to power (+ grid connectivity), and reliability are some main points to cover. Would love to see this as well

@saranormous @thenuclearco @JonathanWebbKY

@saranormous on timeline it isnt close? Solar+storage stands up in months at about $25/MWh, nuclear runs $75 and takes a decade. Datacenters need power inside 18 months. Nuclear is a great answer to a demand curve from quite a few years ago

@saranormous What are your views

@saranormous Eventually the constraint won't just be energy, it'll be Runtime Economics, how efficiently that energy turns into business value.

@saranormous Nuclear is underrated for datacenters. Baseload isn't optional and solar+batteries still need diesel backup to cover the gaps.

@saranormous Uranium is underrated for exactly this reason. Renewables can't stand alone for industrial-scale power. Nuclear fills the gap.

@saranormous Honestly it’s probably not even solar+batteries vs nuclear. Datacenters are gonna need both

@saranormous Or combinations of the two.