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Google Hamina Data Center Campus

Hamina, Kymenlaakso, FinlandOperating / Stabilized
Capacity
—
No public figure
Lead participant
Google
Developer
Last updated
Aug 25, 2026
Most recent public record update

About Google Hamina Data Center Campus

Google's single former-Summa-paper-mill campus, including successive building expansions and heat-recovery infrastructure. Google Hamina Data Center Campus is in Hamina, Kymenlaakso, FI and is a data center campus with operational status. Participants include Google as developer, Haminan Energia as utility. Published specifications include 190 MW contracted supply. Development comprises Initial Summa mill conversion (operational), Cumulative expansion through sixth building (operational), EUR1 billion AI-era expansion (under construction). Key milestones include EUR1 billion expansion announced. (2024-05-20) and External heat recovery reported live. (2026-06-02). seawater cooling: Cooling system uses seawater from the Gulf of Finland; volume not established. offsite heat recovery: External district-heat delivery launched; expected to cover roughly 80% of demand. Permitting includes environmental and water permits for Hamina campus (not publicly disclosed).

Capacity

Operating capacity—An operating IT-capacity figure has not been publicly disclosed.

No additional capacity claims are published.

Development

3 phases · 5 milestones
Initial Summa mill conversionOperational

First operational phase.

Cumulative expansion through sixth buildingOperational

Sixth building was under construction in 2020; exact current count remains open.

6 buildings

EUR1 billion AI-era expansionUnder Construction

No primary completion confirmation by cutoff.

Jan 1, 2009
Former Summa mill acquired
Completed
Sep 1, 2011
First phase began operation
Completed
Sep 21, 2020
Sixth building reported under construction
Completed
May 20, 2024
EUR1 billion expansion announced
Completed
Jun 2, 2026
External heat recovery reported live
Completed

Infrastructure

Cooling SystemOperational

Cooling system uses seawater from the Gulf of Finland; volume not established.

Heat ReuseOperational

External district-heat delivery launched; expected to cover roughly 80% of demand.

Renewable Energy SupplySecured Or Contracted

190 MW

Three Finland PPAs totaling 190 MW; supply measure, not campus load.

Project map

0 of 1 project point mapped
Infrastructure facts
3
Mapped records
1
Capacity figures
1

No map point available

Power & interconnection: 1Cooling & water: 2

Facts & sources

Published claims and their source links.

10 facts
Mill Acquisition Year
2009
Fact
GoogleBlue, yellow and green: Google invests in SwedenGoogleOur first offsite heat recovery project lands in FinlandReutersGoogle invests EUR1 billion in Finnish data centerGoogleEuropean data centers and a green economic recoveryGoogleNew wind in FinlandWiredGoogle's Hamina data centerGoogleGoogle Hamina data center
First Phase Operating Year
2011
Fact
WiredGoogle's Hamina data center
Cumulative Investment
€3,500 millions
Fact
GoogleGoogle Hamina data center
Incremental Expansion Investment
€1,000 millions
Fact
GoogleOur first offsite heat recovery project lands in FinlandReutersGoogle invests EUR1 billion in Finnish data center
Building Count By 2020
6
Fact
GoogleEuropean data centers and a green economic recovery
Carbon Free Energy Matching 2023
98 percent
Fact
GoogleGoogle Hamina data center
Finland Wind Ppa Portfolio
190 MW
Fact
GoogleNew wind in Finland
Heat Recovery District Demand Share
80 percent
Fact
GoogleOur first offsite heat recovery project lands in Finland
Heat Recovery Households
2,000 households
Fact
GoogleBlue, yellow and green: Google invests in Sweden
Cooling Source
Gulf of Finland seawater
Fact
WiredGoogle's Hamina data centerGoogleGoogle Hamina data center