Google unmasks itself as mystery hyperscaler behind £3.75B UK datacenter
(2025/09/16)
- Reference: 1758015986
- News link: https://www.theregister.co.uk/2025/09/16/google_hertfordshire_datacenter/
- Source link:
Google today confirmed it is the mystery hyperscaler behind one of Europe's largest datacenter campuses as it cut the ribbon on a facility situated on the outskirts of the M25 in Hertfordshire.
Last year, The Register [1]revealed that a cloud giant was building a 2 million sq ft bit barn that cost £3.75 billion to construct. A company called DC01 UK Ltd had submitted the plans for the site, which is situated to the north of London, next to the A1 road and the M25 motorway.
Google has now outed itself as the owner of the "Waltham Cross" datacenter ( [2]though it's closer to Potters Bar ) in [3]a blog post published on Tuesday, claiming the site will be used to run AI-powered services, including Google Cloud, Workspace, Search, and Maps.
[4]
In a statement, CFO Ruth Porat said: "With today's announcement, Google is deepening our roots in the UK and helping support Great Britain's potential with AI to add £400 billion to the economy by 2030 while also enhancing critical social services.
[5]
[6]
"Google's investment in technical infrastructure, expanded energy capacity, and job-ready AI skills will help ensure everyone in Broxbourne and across the whole of the UK stays at the cutting-edge of global tech opportunities."
Google's triumphant blog post reveals that the new datacenter is part of a two-year £5 billion investment in the UK, covering not just physical kit but R&D, engineering hires and training schemes. The Chocolate Factory reckons the investment will create roughly 8,000 jobs per year across the UK economy, while creating "future-focused career opportunities" for millions of Brits.
[7]
Energy is, inevitably, the elephant in the server room. DC01 UK said a year ago it had a power reservation of 400 MVA from the National Grid, supplied by the Elstree electricity substation, though it was not to be connected until 2029.
Google insists the site has been built with efficiency in mind, using advanced air-cooling to cut water consumption and boasting heat recovery kit that could, one day, be used to warm local homes, schools, and businesses. Whether that heat ever leaves the bit barn will depend on the council and utility firms building the pipes to make it happen.
The ad giant has also struck a deal with Shell Energy Europe to act as its 24/7 carbon-free energy manager in Blighty, a move it claims will help its UK operations run at 95 percent carbon-free by 2026. Given the well-documented strain hyperscale datacenters are putting on Britain's creaky grid, that's a lofty promise.
[8]Google lands £400M MoD contract for secure UK cloud services
[9]UK datacenter developers turn to gas rather than wait for grid power for builds
[10]Google games numbers to make AI look less thirsty
[11]Tony Blair Institute: UK needs bit barns to lead in AI deployment, not training
Google is keen to paint itself as a good neighbor. It says more than 250 mostly local firms helped build out the Waltham Cross site and has promised a community fund overseen by Broxbourne Council to support local economic development, charities, and STEM training initiatives. CHEXS, Community Alliance Broxbourne & East Herts, and SPACE Hertfordshire are among the groups set to benefit, we're told.
Years in the making
Google's new bit barn [12]got the nod back in January, just months after The Reg reported that plans for the mega-facility had been submitted. The speed shouldn't surprise anyone. Last year, Whitehall quietly reclassified datacenters as critical national infrastructure (CNI), giving developers a much easier ride when it comes to overriding local grumbles.
Ministers, who have spent the past few years fretting over Britain's AI competitiveness, will no doubt chalk this one up as a win – particularly after Google was tapped [13]to help modernize the Ministry of Defence's cloud estate and has been name-checked in [14]the government's AI Opportunities Action Plan .
[15]
Chancellor of the Exchequer Rachel Reeves swooned: "Google's £5 billion investment is a powerful vote of confidence in the UK economy and the strength of our partnership with the US, creating jobs and economic growth for years to come."
If all goes to plan, the Waltham Cross bit barn will be one of the key engines driving Google's "AI-powered" future – and one of the UK's largest single electricity customers for decades to come. ®
Get our [16]Tech Resources
[1] https://www.theregister.com/2025/01/24/uk_mega_datacenter_approved/
[2] https://dc01uk.com/proposals/#the-site
[3] https://www.reuters.com/sustainability/climate-energy/google-sets-out-68-bln-uk-investment-ahead-trumps-state-visit-2025-09-16/
[4] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=2&c=2aMk1OkKjkyYUEbn3QjlqdAAAAA0&t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0
[5] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44aMk1OkKjkyYUEbn3QjlqdAAAAA0&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0
[6] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=3&c=33aMk1OkKjkyYUEbn3QjlqdAAAAA0&t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0
[7] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44aMk1OkKjkyYUEbn3QjlqdAAAAA0&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0
[8] https://www.theregister.com/2025/09/12/google_cloud_mod_contract/
[9] https://www.theregister.com/2025/08/29/uk_dc_gas_install/
[10] https://www.theregister.com/2025/08/22/googles_gemini_water/
[11] https://www.theregister.com/2025/08/04/tony_blair_institute_says_uk/
[12] https://www.theregister.com/2025/01/24/uk_mega_datacenter_approved/
[13] https://www.theregister.com/2025/09/12/google_cloud_mod_contract/
[14] https://www.theregister.com/2025/01/13/uk_government_ai_plans/
[15] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=3&c=33aMk1OkKjkyYUEbn3QjlqdAAAAA0&t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0
[16] https://whitepapers.theregister.com/
Last year, The Register [1]revealed that a cloud giant was building a 2 million sq ft bit barn that cost £3.75 billion to construct. A company called DC01 UK Ltd had submitted the plans for the site, which is situated to the north of London, next to the A1 road and the M25 motorway.
Google has now outed itself as the owner of the "Waltham Cross" datacenter ( [2]though it's closer to Potters Bar ) in [3]a blog post published on Tuesday, claiming the site will be used to run AI-powered services, including Google Cloud, Workspace, Search, and Maps.
[4]
In a statement, CFO Ruth Porat said: "With today's announcement, Google is deepening our roots in the UK and helping support Great Britain's potential with AI to add £400 billion to the economy by 2030 while also enhancing critical social services.
[5]
[6]
"Google's investment in technical infrastructure, expanded energy capacity, and job-ready AI skills will help ensure everyone in Broxbourne and across the whole of the UK stays at the cutting-edge of global tech opportunities."
Google's triumphant blog post reveals that the new datacenter is part of a two-year £5 billion investment in the UK, covering not just physical kit but R&D, engineering hires and training schemes. The Chocolate Factory reckons the investment will create roughly 8,000 jobs per year across the UK economy, while creating "future-focused career opportunities" for millions of Brits.
[7]
Energy is, inevitably, the elephant in the server room. DC01 UK said a year ago it had a power reservation of 400 MVA from the National Grid, supplied by the Elstree electricity substation, though it was not to be connected until 2029.
Google insists the site has been built with efficiency in mind, using advanced air-cooling to cut water consumption and boasting heat recovery kit that could, one day, be used to warm local homes, schools, and businesses. Whether that heat ever leaves the bit barn will depend on the council and utility firms building the pipes to make it happen.
The ad giant has also struck a deal with Shell Energy Europe to act as its 24/7 carbon-free energy manager in Blighty, a move it claims will help its UK operations run at 95 percent carbon-free by 2026. Given the well-documented strain hyperscale datacenters are putting on Britain's creaky grid, that's a lofty promise.
[8]Google lands £400M MoD contract for secure UK cloud services
[9]UK datacenter developers turn to gas rather than wait for grid power for builds
[10]Google games numbers to make AI look less thirsty
[11]Tony Blair Institute: UK needs bit barns to lead in AI deployment, not training
Google is keen to paint itself as a good neighbor. It says more than 250 mostly local firms helped build out the Waltham Cross site and has promised a community fund overseen by Broxbourne Council to support local economic development, charities, and STEM training initiatives. CHEXS, Community Alliance Broxbourne & East Herts, and SPACE Hertfordshire are among the groups set to benefit, we're told.
Years in the making
Google's new bit barn [12]got the nod back in January, just months after The Reg reported that plans for the mega-facility had been submitted. The speed shouldn't surprise anyone. Last year, Whitehall quietly reclassified datacenters as critical national infrastructure (CNI), giving developers a much easier ride when it comes to overriding local grumbles.
Ministers, who have spent the past few years fretting over Britain's AI competitiveness, will no doubt chalk this one up as a win – particularly after Google was tapped [13]to help modernize the Ministry of Defence's cloud estate and has been name-checked in [14]the government's AI Opportunities Action Plan .
[15]
Chancellor of the Exchequer Rachel Reeves swooned: "Google's £5 billion investment is a powerful vote of confidence in the UK economy and the strength of our partnership with the US, creating jobs and economic growth for years to come."
If all goes to plan, the Waltham Cross bit barn will be one of the key engines driving Google's "AI-powered" future – and one of the UK's largest single electricity customers for decades to come. ®
Get our [16]Tech Resources
[1] https://www.theregister.com/2025/01/24/uk_mega_datacenter_approved/
[2] https://dc01uk.com/proposals/#the-site
[3] https://www.reuters.com/sustainability/climate-energy/google-sets-out-68-bln-uk-investment-ahead-trumps-state-visit-2025-09-16/
[4] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=2&c=2aMk1OkKjkyYUEbn3QjlqdAAAAA0&t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0
[5] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44aMk1OkKjkyYUEbn3QjlqdAAAAA0&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0
[6] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=3&c=33aMk1OkKjkyYUEbn3QjlqdAAAAA0&t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0
[7] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44aMk1OkKjkyYUEbn3QjlqdAAAAA0&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0
[8] https://www.theregister.com/2025/09/12/google_cloud_mod_contract/
[9] https://www.theregister.com/2025/08/29/uk_dc_gas_install/
[10] https://www.theregister.com/2025/08/22/googles_gemini_water/
[11] https://www.theregister.com/2025/08/04/tony_blair_institute_says_uk/
[12] https://www.theregister.com/2025/01/24/uk_mega_datacenter_approved/
[13] https://www.theregister.com/2025/09/12/google_cloud_mod_contract/
[14] https://www.theregister.com/2025/01/13/uk_government_ai_plans/
[15] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=3&c=33aMk1OkKjkyYUEbn3QjlqdAAAAA0&t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0
[16] https://whitepapers.theregister.com/
Might be cynical but....
If their low/no carbon energy uses the limited pool available, and causes the energy companies to burn extra fuel to supply everyone else, they aren't really carbon neutral-ish.They're just moving it around. i.e. they aren't increasing the supply.