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Era4 wins approval for landfill-gas-powered AI data center in Canterbury

Era4 wins approval for landfill-gas-powered AI data center in Canterbury

Built World

The 30.8m by 40.9m building is designed to run mostly on methane from the neighboring landfill, with a 20-cubic-meter daily water cap

October 28th, 2026: Era4 partners with Fireworks on open-model AI

Overview

Updated Nov 1

Canterbury City Council approved Era4's data center beside Shelford Landfill on October 15, with four votes in favor, three abstentions and one against. The 30.8m by 40.9m building is designed to draw most of its power from methane captured at the landfill, sent by private wire from the neighboring Valencia Energy Centre.

On October 28 Era4 announced a partnership with Fireworks to bring open-model AI to enterprises across the UK and Europe, according to the company's press page. A Follow the Money investigation questioned the project's carbon math: the landfill gas is already captured and burned to make grid electricity. More than 4,000 people signed a petition against the Canterbury plan.

Why it matters

Era4 would divert landfill gas that already generates grid electricity into AI computing, a trade-off objectors and investigators are contesting.

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Key Indicators

140 MWh/day
Peak electricity draw
Estimated consumption at full capacity, supplied mainly by the landfill-gas plant.
20 m³/day
Water-use cap
Condition set by South East Water for the closed-loop cooling system.
4,000+
Petition signatures
People who signed a petition opposing the Canterbury data center, according to Follow the Money.
4
Full-time staff
The facility's planned on-site workforce.
1,260 m²
Building footprint
A building measuring 30.8m by 40.9m and 11.7m high on previously used composting land at Shelford Farm Estate.

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People Involved

TH
Tom Humphreys
Chief executive of Era4
Leading Era4's plan for a network of landfill-gas-powered AI data centers after the Canterbury approval
 Ian Stockley
Ian Stockley
Canterbury City Council member
Opposed the project on resource-use grounds
MD
Michael Dixey
Canterbury City Council member
Pushed for a lower water-use limit
ST
Simon Thomas
Head of planning at Canterbury City Council
Defended the water-use estimate during the planning process

Organizations Involved

Era4
Era4
Technology infrastructure developer
Developer of a planned UK-wide network of landfill-gas-powered AI data centers

British developer of AI data centers on brownfield sites; rebranded from Carbon3.AI in March 2026.
Canterbury City Council
Canterbury City Council
Local government
Planning authority that approved the project

Granted planning permission for the Shelford data center on October 15, 2026, with 16 conditions including a daily water cap.
VW
Valencia Waste Management
Waste management company
Operates Shelford Landfill and the Valencia Energy Centre

Runs the waste site that will supply the data center's power through a private-wire connection.
South East Water
South East Water
Water utility
Set the water-use cap condition

Required a maximum daily water use of 20 cubic meters for the facility's cooling system.

Timeline

March 2026 October 2026

6 events Latest: October 28th, 2026 · 2 weeks ago
Tap a bar to jump to that date

  1. Era4 partners with Fireworks on open-model AI

    Latest Corporate

    Era4 announces a partnership with Fireworks to bring open-model AI to enterprises across the UK and Europe, according to its press page.

  2. Era4's UK-wide "sovereign AI mesh" plan reported

    Corporate

    HPCwire reports Era4 intends to link its UK data centers into a "sovereign AI mesh", with the Canterbury facility using landfill gas and rooftop solar for local, off-grid baseload power.

  3. Construction Review reports the approved project

    Reporting

    Construction Review publishes its account of the approved data center and its planned landfill-gas power supply.

  4. Planning permission granted

    Planning

    Canterbury City Council approves the data center with 16 conditions, voting four in favor, three abstentions, one against.

  5. Council committee defers decision for site visit

    Planning

    Canterbury City Council's planning committee debates the application, with water-use and environmental concerns raised, then defers for a site visit.

  6. Era4 rebrands from Carbon3.AI

    Corporate

    The company announces its rebrand, signaling a focus on AI-era data center development.

Scenarios

1

Construction begins at the Shelford data center

Likely Resolves by Jan 1, 2028

Discussed by: Era4 chief executive Tom Humphreys, who said the company will share construction plans with the local community

Era4 must satisfy the 16 planning conditions, including the 20 cubic meter daily water cap, then finalize construction arrangements and set a commissioning schedule. The company has not yet established an operational date for the facility.

2

Landfill gas falls short and the data center leans on the grid

Possible Resolves by Jan 1, 2030

Discussed by: TECS Engineering, which notes landfill gas quality and volume decline over time, and local objectors who raised the same concern

Landfill gas output drops every year as waste decomposes. The Valencia Energy Centre was sized for early-years output, so when the methane runs low, the data center will draw more from the National Grid — which the planning documents already allow as backup.

3

Planning conditions stall the project

Unlikely Resolves by End of 2027

Discussed by: Objectors who raised water, noise and environmental concerns during the planning process

The 16 conditions tied to the approval include the water cap and environmental management requirements. If any condition proves unworkable, construction could stall or the permission could lapse, a risk some objectors say is heightened by the uncertain landfill gas supply timeline.

Historical Context

2 moments from history that rhyme with this story — and how they unfolded.

2013

Facebook's Luleå data center (2013)

Facebook opened a data center in Luleå, Sweden, chosen for its proximity to hydroelectric power from the Lule River and cold Arctic air that allows natural cooling. The site was selected for its energy and climate, not its proximity to users.

Then

The facility ran on renewable hydro power with sharply reduced cooling costs.

Now

It became a benchmark for siting data centers around energy sources rather than population centers.

Why this matters now

Like Luleå, the Shelford site is defined by its power source. The difference: Era4's fuel is methane from decomposing waste.

1994 onwards

US landfill gas-to-energy program (1994 onwards)

The US Environmental Protection Agency launched its Landfill Methane Outreach Program in 1994, helping develop hundreds of landfill gas-to-energy projects nationwide over the following decade. Operators capture methane from decomposing waste and burn it to generate electricity.

Then

Methane that once escaped into the atmosphere was converted into electricity for local grids.

Now

Landfill gas became a mature, small-scale power source, though operators know its output declines steadily as waste settles.

Why this matters now

The technology behind the Shelford project is proven. What is untested is whether landfill gas can sustain a high-density AI data center over decades.

Sources

(10)
+4
Construction Review Online BBC News Era4 Canterbury Live TECS Engineering Data Center Dynamics The National HPCwire Follow the Money Era4