A backdrop of swirling winds and hail on a tour of what’s been billed Europe’s first microgrid-powered datacentre threw the problem for its mission companions into sharp aid.
“If we’d solely recognized how tough it might be,” says Ian Whitfield, Pure Knowledge Centres Group (PureDC) chief engineering and know-how officer. “Though, in fact, we didn’t assume it might be straightforward, so we’re very happy with what we’ve been in a position to obtain [with partner AVK-SEG].”
The tip of the mission is now close to, having been seven years within the making, with most building taking place up to now two or three years. That is additionally regardless of denial of a grid connection – the entire of Dublin has simply two electrical energy crops – and the lengthy wait that adopted.
“Like many others in Eire on the time, or in Dublin notably, we had our deposit handed again to us. We needed to get artistic or flip our focus elsewhere,” Whitfield says.
That meant discovering different methods to energy the mission, beginning with the 14MW DUB01 datacentre switched on in 2024. Additionally on a 5.73-hectare (14.2 acres) web site on the Orion Enterprise Park close to the outer suburb of Blanchardstown are DUB02 (24MW) and DUB03 (16MW).
Housing ground-floor information halls that may host cloud companies and compute companies, and cooled with closed-loop techniques – stuffed as soon as for zero water consumption – the power is anticipated to accommodate the most recent tech, together with assist for synthetic intelligence (AI) processing. Future plans embody enlargement to 110W, which is able to comprise an extra 90W and incorporate one other 10.1ha (25 acres).
The sustainable efforts behind microgrid switch-on
However the modern half is the power centre on the rear. That’s the place the AVK-designed and developed microgrid helps the 54MW already in place and can assist the total 110W in a number of years’ time. Proper now, the primary capability block of the deliberate three capacity-block power centre is on, and the second is ready to go dwell round September.
The microgrid runs on liquid pure fuel (LNG) and sustainable, hydrotreated vegetable oil (HVO). The HVO chosen boasts Worldwide Sustainability & Carbon Certification (ISCC), which is costlier however value it for the extra sustainability advantages, in response to the companions.
PureDC achieved 100% decarbonisation of pure fuel consumption throughout 2025 by means of biomethane proof of idea (PoC). This implies all operational pure fuel consumption within the 12 months was matched with renewable biomethane, utilizing independently licensed fuel attributes and recognised Irish and European accounting methodologies.
It’s working with native environmental companies, together with Eire’s Environmental Safety Company (EPA), to make sure operations keep inside “tight environmental constraints”, Whitfield provides.
Irish Renewable Gasoline Ensures of Origin (RGGOs) and European Biomethane Ensures of Origin (GOs) certificates are sourced and retired on a MW-hour foundation to match fuel consumption, in addition to to fulfill recognised sustainability, traceability, chain-of-custody, renewable fuel market, EU emissions buying and selling, RE100 technical standards and extra.
Gasoline Networks Eire (GNI) mains fuel is linked to the location to make sure its means to ship steady vital companies with five-nines availability, or simply over 300 seconds of downtime a 12 months. Whereas the power has a number of fuel connection feeds from Eire again into the UK and throughout Europe, GNI modelling suggests little influence on fuel companies availability extra broadly, Whitfield says.
Redundancy is equipped by further engines and duplicate energy feeds from the power centre into the datacentre, with the management system additionally duplicated. Backup technology is on web site, equipped by dual-fuel engines.
Grid constraints a reality of life
Ben Pritchard, AVK’s CEO, emphasised that grid constraints have change into a characteristic of growth challenges, together with for datacentres. Within the UK, grid connection ready occasions could be eight to 10 years. In Eire, datacentres already take 21% of generated energy.
Gartner predicts that AI will see worldwide datacentre energy demand double by 2030, up from round 448TWh in 2025. Round 40% of current AI datacentres will likely be operationally constrained by energy availability by 2027.
However, says Pritchard, operators have to this point largely continued to construct datacentres the standard manner. And it might probably’t all be achieved with wind and photo voltaic, with out constructing big overcapacity.
“PureDC got here to us and stated, ‘We could by no means get a grid connection, however we have to attempt to make this work’. That’s the primary time we noticed that ready wasn’t an choice. We’d must assume outdoors the field,” he says.
AVK enterprise has been round backup energy technology, however just for standby energy in markets resembling healthcare, pharma and finance – not datacentres. It wanted to remodel itself, so it employed new expertise and discovered find out how to change into a extra strategic energy techniques supplier with course of engineering experience.
AVK wanted to plot “a tapestry of applied sciences” – taking in, as an illustration, precipitating engines, turbine know-how, battery storage, complicated and high-voltage management techniques, and gasoline cells
One design simply wasn’t going to facilitate this … We wanted an built-in engineering structure with layers of innovation Ben Pritchard, AVK
“For a datacentre, your finish aim – to design one thing to 100MW, for instance. However the ‘ramp charge’, how the load reaches that, is undefined,” Pritchard says.
For instance, the primary six months of operation may solely eat 1MW, so you’ll be able to’t have an engine that should run at full capability from day one.
Location and latency issues. System stability have to be assured underneath fluctuating load situations. As well as, operators should management and coordinate a wide range of complicated distributed techniques and even totally different power sources, whereas delivering high quality of service and assured availability.
“A producing plant, for instance, might be working within the 80% vary of availability, which supplies you an concept of the layers of know-how we wanted so as to add,” Pritchard says. “One design simply wasn’t going to facilitate this. It wasn’t nearly a bunch of fuel engines. We wanted an built-in engineering structure with layers of innovation.”
The short-term 10MW first stage capacity-block used 2.5MW Rolls-Royce fuel engines and will likely be repurposed elsewhere within the power centre.
Stage two – from round September – will generate extra energy utilizing six further engines from Wärtsilä, tailored for a datacentre setting and to work with a battery power storage scheme (Bess). The plan is to observe the present 9.8MW, 750rpm, dual-fuel Wärtsilä engines with three extra.
The Bess prices and discharges whereas retaining the engines operating effectively at a lot decrease hundreds in addition to at full capability when the entire datacentre and all three modular, easy-to-decommission power centres are on-line of their last positions in a number of years.
The “minor modifications” guarantee all three power centre designs settle for a hydrogen-fuel mix, with standby turbines operating HVO because the third layer of redundancy, with big HVO storage tanks that needed to be customized constructed and welded on web site. There are 72 hours’ value of HVO backup, so if mains fuel fails, the engines can change straight to HVO.
“It is going to nonetheless utilise battery storage. We’re relocating 10MW of battery [from the temporary scheme], and we’ll construct one other 10MW for a complete 20MW of battery storage,” Pritchard says. “This all entails layers of know-how that in all probability have by no means met earlier than for any actual objective.”
Rainwater harvesting readiness has additionally been designed in. That’s about decreasing mains water utilization for the engines, through on-site assortment and remedy.
Carbon seize may occur by the top of 2026, courtesy of final 12 months’s AVK, Rolls-Royce and Landmark Energy Holdings memorandum of understanding to deploy and commercialise carbon seize know-how from Swiss CO2 restoration specialist ASCO. Sectors resembling beverage manufacturing and medical nonetheless endure from CO2 shortages.
Whereas it’s not an precisely replicable blueprint per se, what PureDC and AVK-SEG have achieved is predicted to information efficiency parameters for future on-demand microgrids. Native situations will dictate optimum apply and design as a result of generally fuel generators is perhaps most well-liked to engines, or maybe gasoline cells.
Nevertheless it might be a “second the place the market begins to consider energy otherwise”, with microgrids transferring past being mere bridging options, says Pritchard, including: “In Germany, Netherlands and UK, we’ve got dwell tasks in design that discover the same construction. We’ve constructed one thing that removes demand from the grid, however that may additionally take part in grid exercise.”
Web zero by 2040
Maria Rivas, PureDC’s director of sustainability, says it goals to attain total net-zero operations by 2040. Vitality planning should go hand in hand with decarbonisation, whereas being viable, credible and compliant within the close to time period. The concept is to not compromise on sustainability, proper all the way down to utilizing the costliest, environmentally licensed HVO.
It’s one other step on our journey … and it’s a blueprint that hopefully others can observe Ian Whitfield, Pure Knowledge Centres Group
All this has taken its time, particularly due to the necessity to perceive the market in full earlier than continuing. On the similar time, regulatory alignment and associated frameworks have wanted to develop. European and Irish laws needed to be enacted usually, whereas concurrently measurement and verification processes have been beginning to be developed.
For PureDC, these items have been vital to safe the provision, to grasp how that offer moved, after which to ensure the corporate may make correct, sustainable disclosures that have been regulated by the related departments. In the meantime, it wanted to maintain the lights on within the datacentre, counting on current infrastructure that allowed it to decarbonise but keep performance, says Rivas.
“We analyse lifetime carbon up entrance,” she provides. “At our datacentres, we analyse what emissions are related to constructing the location. We additionally take a look at the power centres and our power, and our zero waste to landfill, for which we certify all our websites. Resilience and decarbonisation don’t must be decoupled.”
Whitfield confirms the mission goals to “measure, monitor, cut back, and disclose” most emissions, together with from licensed Irish biomethane. As an example, the development has been designed so connectors for district heating could be simply added if there’s demand.
“We’re working carefully with companions to carry and use this technique as a catalyst for decarbonised warmth for this space’s wider group,” he says. “It’s one other step on our journey, which has been a protracted and really tough journey, and we’ve not fairly completed but, however we are going to – and it’s a blueprint that hopefully others can observe.”
The mission provides about 150 ongoing Dublin jobs, excluding building.
