Skip to content

Water UK warns there’s not enough water for datacentre plans

techJul 21, 2026261,280

Water UK told MPs that government water forecasts are "fatally flawed" because they "explicitly exclude" datacentre demand, warning the UK will not have enough water for planned datacentre expansion. The trade body said government documents including the AI growth zones policy, the AI for science strategy and the AI opportunities action plan make no mention of water, and the Environment Agency’s June 2025 national framework for water resources also omitted datacentre demand. Water UK estimates datacentres in England already use 6.6 million litres of drinking water a day and says the government’s ambition to triple datacentre capacity by 2030 could raise that to 19.8 million litres a day. The Lords’ May report found England could face a 5 billion litres a day shortfall for public supplies by 2055, while Water UK noted more than three quarters of datacentres sit in the south and east where hosepipe bans have been imposed. Affinity Water told MPs about roughly 125 datacentres proposed or under construction in its region and said some sites have requested up to 3 million litres a day, equivalent to the peak demand of about 3,500 homes. Water UK’s deputy director Jon Chappel called the omission "unforgivable" and warned new datacentre growth in water-stressed areas "may be impossible" without policy change because building new major supplies can take around 15 years or would require increased environmental abstraction.

Prem Sikka
@premnsikka.bsky.social

The UK will not have enough water for future datacentres. England faces 5bn litre a day shortfall for public water supplies. A trillion litres of water a year lost to leaks. Widespread hosepipe bans. No national grid for water. Poor infrastructure. No national plan.

7726h ago
Quoting this
dragon odontologist 🇺🇦🇱🇹🇵🇸🏴󠁧󠁢󠁳󠁣󠁴󠁿45

Literally every single person on here who takes an anti-anti-datacentre perspective on this has kind of failed to explain to me what is so bad about the prospect of us just not building any more of them.

Sue Cowley37

I have a solution. *Don't build the sodding datacentres.* Have all the people in power lost the plot?

tante26

But the AI bros keep telling me that water usage is not a problem. The officials must be lying.

Bethany Black15

Fortunately, between OpenAI’s advertising shortfall and the first SpaceX lockup period coming to an end on 6th August, along with various banks bundling their exposure, and various of the “Magnificent Seven” selling off parts of their stakes in Data Centres, those data certainly may be cancelled

Athena Kugblenu11

How the fuck are we supposed to make our Vimto with no fucking water??

solhog7

Vattnet - människovärdet ställs mot massivt oproportionerlig invasion av datacentraler (även hos oss). Ett sådant förödande slöseri med droppar, som utmanar grundläggande behov för livsvärdet under pågående klimatkris… orsakad av människans tanklöst giriga oproportionerliga utsläpp av växthusgaser.

Esther5

We are losing out on water for our gardens because of data centres.

Pete Morgan5

Another reason why building one here in Norwich, one of the driest areas of the country, makes no sense.

Mag Nachtergael5

Stop the whole digital waste

nod-64.bsky.social4

Alexa, give me another reason why Westminster clings onto Scotland like a priest clings onto an altar boy. #YouYesYet #IndyRef2

1 source