Google has announced plans to expand its digital infrastructure in Finland while pairing that growth with new electricity supply, storage and grid-flexibility measures. The plan covers new data centres and local investments in Hamina, Kajaani, Muhos and Vaala, alongside a life-extension and capacity-upgrade agreement involving the Loviisa nuclear plant.

The portfolio also includes two onshore wind projects, a planned 94 MW battery near Kajaani and possible arrangements to reduce data-centre demand during periods of grid stress. Google presents the measures as a way to pair its growing AI and digital infrastructure with additional electricity supply, storage and flexible demand.

The announcement does not disclose the total size or expected electricity demand of Google's Finnish data-centre expansion. It also describes planned investments and company-reported modelling rather than completed projects with measured system-wide results.

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What Google announced

The central nuclear component is a power-purchase agreement between Google and Fortum intended to support the continued operation of the Loviisa nuclear power plant. Google says the agreement would provide long-term revenue certainty for capital investments that could allow the plant to operate through 2050, with upgrades and modernisation intended to increase its capacity.

An uprate is an increase in a generating plant's output capability, usually requiring engineering work, equipment changes and regulatory review. Google has not provided the exact capacity increase expected from the Loviisa programme.

Google says Loviisa currently employs approximately 580 people and that, without Fortum's life-extension investment programme, the plant would not have been able to continue beyond 2030. It also says keeping the plant operating would retain 10% of Finland's electricity supply online.

The announcement describes Fortum's wider Loviisa investment programme as an ongoing EUR 1 billion effort. Approximately 80% of the projects and EUR 700 million of the required capital expenditure to keep the plant operational through 2050 remain pending investment decisions, according to the supplied source.

Google and Fortum will also work together to identify potential opportunities for new nuclear reactors at Loviisa. That is an exploration of possible future projects, not evidence that new reactors have been approved or ordered.

On renewable generation, Google says it is supporting two onshore wind projects developed by Valorem and Suomen Hyötytuuli. The projects would bring the total amount of new-to-the-grid onshore wind energy contracted by Google in Finland to 629 MW. The announcement does not provide the individual project capacities, locations, commissioning dates or ownership structures.

Google also says its first Finnish onshore wind project became operational in 2019, and that its clean-energy power-purchase agreements have added more energy to Finland's grid than Google has used. These are Google's claims about the effect of its Finnish energy partnerships.

How the energy portfolio is meant to work

The plan combines technologies with different roles in the electricity system.

Nuclear power is intended to provide sustained generation. Wind adds renewable output but varies with weather conditions. A grid-scale battery can absorb electricity when supply is high and discharge it when demand or system needs rise, helping manage short-duration imbalances.

Google is enabling a 94 MW battery system near its Kajaani site and expects it to become operational in late 2027. The company says the battery will help balance the grid and reduce price volatility, including when wind generation is low. The announcement does not specify the battery's storage duration, expected energy capacity in megawatt-hours or operating configuration.

Google is also working with partners to enrol its onshore wind portfolio in Fingrid's ancillary-services markets. Ancillary services are services procured by a grid operator to help maintain frequency, balance supply and demand, and support reliable operation.

A further option is demand response: changing electricity consumption in response to grid conditions or prices. Google says it will explore arrangements with grid operators that could temporarily reduce data-centre power demand during periods of grid stress. The company says this builds on capabilities piloted at Hamina during the 2022–2023 energy crisis.

The distinction matters. Procuring electricity from new generation does not by itself make a data centre's consumption flexible at every moment. Storage and demand response can provide additional tools for managing short periods when supply and demand are not aligned, although their effectiveness depends on technical design, market participation and operating rules.

Why data-centre siting matters

Google says it worked with Fingrid, Business Finland and local municipalities to identify potential future infrastructure locations in northern and central Finland with existing grid infrastructure and carbon-free energy.

The company commissioned a modelling study examining a hypothetical 1 GW of new electricity demand in the Oulu-Kajaani region rather than in southern Finland. Google reports that the study estimated this siting choice could produce EUR 520 million in savings for energy consumers across Finland over 20 years.

The 1 GW figure is illustrative and used for the study; it is not a disclosure of Google's planned Finnish data-centre load. The EUR 520 million result is also a modelled estimate, not a measured saving from an operating project.

The supplied material does not identify the study's authors, model, assumptions, baseline, sensitivity analysis or independent review. As a result, the estimate is best understood as a company-reported result from a commissioned scenario analysis.

Google's existing Hamina data centre has also been transformed into a source of heat for the local community, according to the company. Google says it will continue local work in Hamina, Kajaani, Muhos and Vaala through its Energy Impact Program. Proposed initiatives include solar panels for municipal apartments, batteries and heat pumps for schools and sports centres, and energy-efficient lighting projects.

The announcement does not provide funding amounts, project counts or implementation schedules for those municipal programmes.

What to watch

Several milestones will determine how much of the strategy becomes operational:

  • whether Fortum and the relevant Finnish authorities approve and complete the investments needed for Loviisa to operate through 2050;
  • whether the Loviisa upgrades increase generating capacity, and by how much;
  • whether the 94 MW Kajaani battery enters service in late 2027 and participates in Finnish balancing markets;
  • whether Google publishes the assumptions and independent validation behind the EUR 520 million siting estimate;
  • how much data-centre capacity is ultimately built at each Finnish location;
  • whether the announced wind and municipal energy projects are delivered and when; and
  • whether Google and grid operators establish demand-response arrangements and disclose their scale and performance.

The broader significance of the announcement is that it treats data-centre expansion, electricity generation, grid location, storage and flexible consumption as linked infrastructure decisions. Whether that model reduces pressure on Finland's electricity system will depend on implementation and evidence from the projects themselves.

Sources