Hacker News new | ask | show | jobs
by bombcar 72 days ago
Almost anything can be mitigated at some cost - but it has to be determined what those mitigations are, and then demand them.

Many municipalities are unequipped to deal with a "datacenter" because on paper it is the same as an office building (that draws a lot of power), where it should be treated like an industrial site (rail yard, factory).

3 comments

True. There likely needs to be some sort of templating handled by states. Each data center and location will be different and require assessment. This does drive costs up for the data center, but I don't see another fair way to handle it really.
They get their own unique third category as unlike industrial sites there's no hazardous chemicals and even the noise pollution is substantially different in nature.

The old datacenters are analogous to office buildings that emit some unusual noise and consume large amounts of electricity.

The new ones (ie gigawatt class) consume enough electricity for ~1 million households and at minimum enough water for 100k households (but possibly many times that).

Where does the water go afterwards? Is it evaporated? Sewer?
I believe evaporative cooling is the norm (thus my "possibly many times that" remark doesn't apply) however theoretically they could provide hot water as a utility or (as you say) just dump it into the sewer. If located next to a river or the ocean they could conceivably dissipate it that way but I'm not aware of any examples.

It's the sort of externality that could be solved with a well placed megaproject. A related question to my mind is why we're building such expensive strategic assets in the open rather than under a mountain.

Waste heat is a problem in waterways, even assuming no other pollutants as it can cause algal blooms on its own and mess with fish biology.
> under a mountain

Delved too greedily and too deep learning!

Unlock the FUN

Evaporated. Given how the water cycle works, it should be expected it will be precipitated back as rain.
With the catching being of course that it won't end up where it was being pulled from.
Large industrial customers often have to sign up to load-shedding agreements wiith grid operators in times of peak grid load.

Can datacenters load shed when requested? If not, they should be paying a premium/spot market prices for power if they arent participating in load management.

The one I toured (decades ago) and dual redundant multi-megawatt diesel generators (big boys, always ask for a tour when they’ll be testing them, it’s fun to hear them start).

Local utility would ask them to shunt to the generators now and then during potential rolling blackout situations.