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DayOne, a Singapore-based data center developer, has announced a major EUR 1.2 billion investment in a hyperscale data center campus in Lahti, Finland. The facility will span 98,901 square meters with a total potential capacity of 128 megawatts (MW) IT load, starting with a first building of 50MW IT load.
The project, scheduled to begin construction in Q3 2025 and operational by 2027, includes a Growth Partnership Agreement with the City of Lahti, featuring a EUR 2.5 million commitment to LUT Universities. The facility aims for LEED Gold certification, will create 100 direct skilled positions and employ 1,000 construction workers at peak construction.
The data center will utilize air cool chiller technology, leverage Finland’s natural cooling climate, and explore waste heat integration into the local district heating system. DayOne has secured power agreements with Lahti Energy and maintains transparency with Finnish authorities regarding the project.
DayOne, sviluppatore di data center con sede a Singapore, ha annunciato un importante investimento di EUR 1.2 billion in un campus di data center hyperscale a Lahti, Finlandia. La struttura avrà una superficie di 98,901 square meters e una capacità potenziale totale di 128 megawatts (MW) IT load, partendo con un primo edificio da 50MW IT load.
Il progetto, la cui costruzione è prevista a partire dal Q3 2025 e che sarà operativo entro il 2027, include un accordo di partenariato per la crescita (Growth Partnership Agreement) con la Città di Lahti, che prevede un impegno di EUR 2.5 million verso le LUT Universities. L’impianto punta alla certificazione LEED Gold, creerà 100 direct skilled positions e impiegherà 1,000 construction workers al picco dei lavori.
Il data center utilizzerà tecnologia di raffreddamento ad aria con chiller, sfrutterà il clima naturalmente freddo della Finlandia ed esplorerà l’integrazione del calore di scarto nel sistema locale di teleriscaldamento. DayOne ha assicurato accordi di fornitura energetica con Lahti Energy e mantiene trasparenza con le autorità finlandesi riguardo al progetto.
DayOne, desarrollador de centros de datos con sede en Singapur, ha anunciado una inversión significativa de EUR 1.2 billion en un campus de centros de datos hyperscale en Lahti, Finlandia. La instalación ocupará 98,901 square meters y tendrá una capacidad potencial total de 128 megawatts (MW) IT load, comenzando con un primer edificio de 50MW IT load.
El proyecto, cuya construcción está prevista para el Q3 2025 y que estará operativo en 2027, incluye un acuerdo de asociación para el crecimiento (Growth Partnership Agreement) con la ciudad de Lahti, que contempla un compromiso de EUR 2.5 million con las LUT Universities. La instalación aspira a la certificación LEED Gold, generará 100 direct skilled positions y empleará a 1,000 construction workers en el pico de la construcción.
El centro de datos empleará tecnología de refrigeración por aire con chillers, aprovechará el clima naturalmente frío de Finlandia y explorará la integración del calor residual en la red local de calefacción urbana. DayOne ha cerrado acuerdos energéticos con Lahti Energy y mantiene transparencia con las autoridades finlandesas sobre el proyecto.
DayOne은 싱가포르에 본사를 둔 데이터센터 개발업체로, 핀란드 라하티(Lahti)에 하이퍼스케일 데이터센터 캠퍼스에 EUR 1.2 billion 규모의 주요 투자를 발표했습니다. 해당 시설은 98,901 square meters의 면적에 총 잠재 용량 128 megawatts (MW) IT load을 확보하며, 우선 50MW IT load 규모의 첫 번째 건물로 시작합니다.
사업은 Q3 2025에 착공해 2027년 운영을 목표로 하며, 라하티 시와의 성장 파트너십 계약(Growth Partnership Agreement)을 포함하고 LUT Universities에 대한 EUR 2.5 million 지원 약속을 담고 있습니다. 시설은 LEED Gold 인증을 목표로 하며, 100 direct skilled positions의 직접 고급 일자리를 창출하고 공사 정점에는 1,000 construction workers를 고용할 예정입니다.
데이터센터는 공기 냉각식 칠러 기술을 사용하고 핀란드의 자연 냉각 기후를 활용하며, 폐열을 지역 단열(지역 난방) 시스템에 통합하는 방안도 검토합니다. DayOne은 Lahti Energy와 전력 공급 계약을 체결했으며 프로젝트와 관련해 핀란드 당국과 투명하게 소통하고 있습니다.
DayOne, développeur de centres de données basé à Singapour, a annoncé un investissement majeur de EUR 1.2 billion pour un campus de data centers hyperscale à Lahti, Finlande. L’installation couvrira 98,901 square meters et offrira une capacité potentielle totale de 128 megawatts (MW) IT load, en commençant par un premier bâtiment de 50MW IT load.
Le projet, dont la construction doit débuter au Q3 2025 et être opérationnel d’ici 2027, inclut un accord de partenariat pour la croissance (Growth Partnership Agreement) avec la ville de Lahti, comportant un engagement de EUR 2.5 million envers les LUT Universities. L’installation vise la certification LEED Gold, créera 100 direct skilled positions et emploiera 1,000 construction workers au pic des travaux.
Le centre de données utilisera une technologie de refroidissement par air avec chillers, tirera parti du climat naturellement froid de la Finlande et étudiera l’intégration de la chaleur résiduelle dans le réseau local de chauffage urbain. DayOne a sécurisé des accords d’alimentation avec Lahti Energy et fait preuve de transparence vis‑à‑vis des autorités finlandaises concernant le projet.
DayOne, ein in Singapur ansässiger Rechenzentrumsentwickler, hat eine umfangreiche Investition von EUR 1.2 billion in einen Hyperscale-Rechenzentrumscampus in Lahti, Finnland, angekündigt. Die Anlage wird sich über 98,901 square meters erstrecken und eine potenzielle Gesamtkapazität von 128 megawatts (MW) IT load haben, wobei mit einem ersten Gebäude von 50MW IT load begonnen wird.
Das Projekt, dessen Bau im Q3 2025 beginnen und das bis 2027 betriebsbereit sein soll, umfasst eine Growth Partnership Agreement mit der Stadt Lahti und sieht eine Zusage von EUR 2.5 million für die LUT Universities vor. Die Anlage strebt eine LEED Gold-Zertifizierung an, schafft 100 direct skilled positions und beschäftigt in der Bau-Hochphase 1,000 construction workers.
Das Rechenzentrum wird luftgekühlte Chiller-Technologie einsetzen, das natürliche Kühlerklima Finnlands nutzen und die Integration von Abwärme in das örtliche Fernwärmesystem prüfen. DayOne hat Stromvereinbarungen mit Lahti Energy abgeschlossen und ist gegenüber den finnischen Behörden transparent über das Projekt.
Positive
- Major EUR 1.2 billion investment demonstrates strong financial commitment to the project
- Significant capacity of 128MW total IT load with first phase of 50MW
- Creation of 100 direct skilled positions and 1,000 construction jobs
- Strategic partnerships with local entities including power connection agreement with Lahti Energy
- Sustainable design targeting LEED Gold certification with innovative cooling solutions
- EUR 2.5 million commitment to local education through LUT Universities
Negative
- No tenant agreements finalized yet for the facility
- Extended timeline with operations not starting until 2027
- Significant power requirements may impact local grid infrastructure
Insights
DayOne’s €1.2B Finnish data center represents strategic European expansion with strong sustainability focus and potential long-term growth catalyst.
DayOne’s €1.2 billion investment in a hyperscale data center in Lahti marks a significant expansion of the Singapore-based company’s European footprint. The facility’s planned 128MW total capacity positions it as a substantial entrant in the Nordic data center market, with the first building comprising 50MW of IT load. The strategic selection of Finland leverages several competitive advantages: naturally cool climate reducing cooling costs, reliable renewable energy infrastructure, and a skilled technical workforce.
The project demonstrates sophisticated sustainability engineering, aiming for LEED Gold certification while implementing air-cooled chiller technology that eliminates freshwater consumption. The partnership with Lahti Energy for grid connection and exploration of waste heat recovery for district heating shows advanced energy efficiency planning. This circular approach to energy usage represents best practices in modern data center design.
The timing of this development is noteworthy, with demolition beginning in Q3 2025 and operations targeted for 2027. This suggests DayOne is positioning for projected hyperscale demand growth in Europe over the coming years. However, the disclosure that no tenant agreements are finalized introduces execution risk to the project. The €2.5 million commitment to LUT Universities indicates a long-term talent development strategy essential for operational excellence in the region.
The investment’s economic impact extends beyond direct infrastructure, with 100 skilled positions and peak construction employment of 1,000 workers. DayOne’s backing by major investors including SoftBank Vision Fund, Citadel’s CEO Kenneth Griffin, and Coatue Management provides financial credibility for this capital-intensive expansion.
08/14/2025 – 03:44 AM
- Aggregated investment amounts to EUR 1.2 billion
- DayOne’s Growth Partnership Agreement with Lahti underscores its long-term commitment to Finland’s digital and economic development
LAHTI, Finland, Aug. 14, 2025 (GLOBE NEWSWIRE) — DayOne, a Singapore-based global data center developer and operator, today announces its significant investment in a state-of-the-art hyperscale data center campus in Lahti, Finland. The aggregated value of DayOne’s investment in Lahti is projected to reach approximately EUR 1.2 billion, reinforcing the company’s commitment to advancing Finland’s digital infrastructure.
The Lahti data center project will transform a former industrial site, located in the neighborhood of Kiveriö, into an advanced, high-performance digital infrastructure facility. Spanning 98,901 square meters, the site is fully zoned for industrial usage. With a total potential capacity of 128 megawatts (MW) IT load, the project comprises a first building of 50MW IT load. Negotiations with potential tenants are in progress, with no agreements finalized to date. Construction will commence with site demolition in Q3 2025, and operations are scheduled to be ready for service in 2027.
The data center campus has been designed with minimal disruption to neighboring areas and aligns with long-term sustainable land-use goals. Facilities are designed aiming for LEED Gold certification or higher. DayOne is collaborating with local engineering firms to fully leverage Finland’s naturally cool climate for free cooling, and further enhance energy efficiency and sustainability in its operations.
DayOne has entered into a power connection agreement with Lahti Energy to strengthen local energy grid resilience. Having set up partnerships with both Lahti Energy and the city of Lahti, and aligned with Lahti’s sustainability and circular economy goals, DayOne has been exploring waste heat reusing and integrating its data center into the local district heating system.
Reinforcing the project’s commitment to resource conservation, the facility will utilize air cool chiller technology and eliminate the need for freshwater cooling.
DayOne’s investment will significantly bolster Lahti’s digital economy, while contributing to job creation in the city and across Finland. The Lahti project is expected to support a progressive ramp-up of 100 direct skilled positions and employ 1,000 construction workers onsite at its construction peak.
“Finland is an ideal strategic choice for our European growth,” said Jamie Khoo, CEO of DayOne Data Centers. “With its reliable energy infrastructure, renewable energy leadership, highly skilled workforce, and naturally favorable climate that significantly reduces energy consumption and operational costs, Finland offers unique advantages that align perfectly with our commitment to sustainable digital infrastructure. Recognised as European Green Capital 2021, Lahti is advancing towards carbon neutrality, making it a natural fit with DayOne’s sustainability goals. We are proud to invest EUR 1.2 billion on Lahti project into the Finnish economy and collaborate closely with Lahti to drive local innovation and sustainability.”
The mayor of Lahti, Mr. Niko Kyynäräinen, welcomes the substantial investment. Lahti is part of the growth and development of the international data economy. “The data center to be built in Lahti is designed to handle large-scale data processing, enabling the creation of a strong digital ecosystem. In addition to the location, cool climate, clean energy, and stable conditions, Lahti’s investment environment once again proved to be a winning operational model,” Niko Kyynäräinen says with delight.
Growth Partnership Agreement to Drive Local Collaboration
DayOne is to enter into a Growth Partnership Agreement with the City of Lahti, Lahti Region Development LADEC, Lahti Energy, and local educational institutions, including a commitment of EUR 2.5 million to LUT Universities as outlined in the agreement. The agreement sets a clear framework for long-term regional cooperation aimed at advancing Lahti’s carbon neutrality goals, strengthening the local business and Information and Communications Technology (ICT) education ecosystems, and fostering talent development.
Key areas of collaboration include integrating local companies into the data center’s development and operations, innovating waste heat utilization solutions, and aligning educational pathways with industry needs through joint R&D, student internships, and faculty engagement. The partnership also connects DayOne’s global academic collaborations, such as with the Sustainable Tropical Data Centre Testbed hosted at the National University of Singapore, to Finnish institutions like LUT Universities to drive innovation in both tropical and cold-climate data center operations.
“The city offers robust government support and a thriving clean-tech ecosystem—providing an ideal environment for advanced, low-carbon digital infrastructure. As we build our presence in Lahti, we are eager to explore meaningful ways to work with the community, especially those who share our vision for digital advancement and environmental responsibility,” added Jamie Khoo from DayOne.
DayOne maintains transparency with Finnish authorities and has informed the Ministry of Economic Affairs and Employment and the Ministry of Defence of Finland of the Lahti data center project. In Finland, DayOne jointly invested with Finnish company Hyperco in the Kouvola data center.
DayOne’s global presence spans Asia Pacific and Europe, with active operations in tier-one and emerging data center markets including Singapore, Johor (Malaysia), Batam (Indonesia), Greater Bangkok, Hong Kong, Tokyo and Finland.
About DayOne
DayOne is a Singapore-based global data center pioneer that develops and operates next-gen digital infrastructure for industry leaders who demand reliable, cost-effective, and quickly scalable solutions. Our cutting-edge facilities empower hyperscalers and large enterprises to achieve rapid deployment and enhance connectivity, driving transformative engagement and innovation as we shape the future of industries. DayOne’s data centers are located across tier-one and emerging markets, including Singapore, Johor (Malaysia), Batam (Indonesia), Greater Bangkok, Hong Kong SAR, Tokyo, and Finland.
DayOne was established in 2022 in Singapore and became an independent group on January 1, 2025, following its deconsolidation from former parent company. DayOne is majority-owned by global investors, such as SoftBank Vision Fund, Citadel CEO Kenneth Griffin, Coatue Management, and so on.
Marketing & Media
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A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/e73e115b-ee8a-425c-9182-2898f25545aa
FAQ
What is the total investment value of DayOne’s new data center project in Lahti, Finland?
DayOne is investing EUR 1.2 billion in the hyperscale data center campus project in Lahti, Finland.
When will DayOne’s Lahti data center begin operations?
The data center is scheduled to begin construction in Q3 2025 and is expected to be ready for service in 2027.
How many jobs will DayOne’s Lahti data center create?
The project will create 100 direct skilled positions and employ 1,000 construction workers at its construction peak.
What is the total capacity of DayOne’s new Lahti data center?
The data center will have a total potential capacity of 128 megawatts (MW) IT load, with the first building providing 50MW IT load.
How is DayOne addressing sustainability in its Lahti data center?
The facility aims for LEED Gold certification, utilizes air cool chiller technology, leverages Finland’s natural cooling climate, and plans to integrate waste heat into the local district heating system.
What educational partnerships has DayOne established in Lahti?
DayOne has committed EUR 2.5 million to LUT Universities as part of its Growth Partnership Agreement, which includes collaboration on R&D, student internships, and faculty engagement.
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