Helen looking for partners to connect data centers to the district heating system of Helsinki

Helen, one of the largest energy suppliers in Finland, is innovating in the way data centers are integrated into the city of Helsinki. The goal: to transform these energy-intensive infrastructures into strategic partners to improve district heating through the valorization of excess heat generated. This initiative aims to maximize energy efficiency and promote the use of renewable energy in the Finnish capital. By combining an intelligent connection of data centers to the city’s thermal network, Helen paves the way for a synergy between technology and sustainability while actively seeking interested partners to join this innovative system.

The opportunities offered by the connection of data centers to Helsinki’s district heating

In a context where energy efficiency has become a global priority, Helen positions itself as a major player by offering an innovative solution for the integration of data centers into Helsinki’s district heating network. The heat generated by servers is often wasted, yet it represents a valuable energy source that can be recovered and reused to heat homes and public buildings in the city.

This recovery principle relies on a sophisticated district heating system with an efficient and already well-established infrastructure in Helsinki. Helen thus invites data center operators to become partners in this network to benefit from a profitable and ecological heat exchange.

Here are some major advantages:

• Reduction of fossil energy consumption thanks to the contribution of renewable heat from data centers.
• Decreased cooling costs for data centers, which leverage the thermal network to maintain an optimal operating temperature.
• Contribution to Helsinki’s zero carbon goal by reducing dependence on polluting energies.
• Improvement of energy resilience through a centralized and intelligent distribution of heat flows.

This approach also encourages reflection on the design of infrastructures, where data centers are no longer just consumers but also active energy producers.

Several partnerships have already emerged:

• Equinix in Helsinki, connected since 2010, has been a pioneer in using residual heat to supply the network.
• Operators Telia and Elisa are also working together with Helen to maximize this synergy.

To delve deeper into how initiatives in this field can transform energy infrastructure, specialized resources can be consulted, such as the tracking provided by Intel on big data management or the in-depth analysis of interconnections in data centers on the website of Fibeye.

Criterion	Benefits for the data center	Benefits for district heating
Energy efficiency	Cost-effective cooling	Valued heat
Carbon emissions	Decrease corresponding to reused heat	Contribution towards a cleaner network
Cost	Reduction of air conditioning costs	Less purchase of fossil energy

Exploring the energy efficiency of data centers also involves using innovative solutions proposed by experts in electrical networks and power like Nexans. This integrated approach perfectly illustrates Helen’s ambition to offer efficient renewable energy and an intelligent thermal network in Helsinki.

Helen: a key player in the energy transition in Helsinki

Helen is not just an energy supplier; it is a complete partner that supports data centers in their specific needs for district heating and electricity. The company plays a catalytic role between technology and sustainability thanks to its in-depth expertise in complex thermal network systems.

With its advanced capabilities, Helen manages the electrical connection of data centers while ensuring the supply of clean electricity. The complementarity between the supply of electrical energy and thermal recovery makes Helen particularly attractive to operators looking to optimize their environmental impact.

Helen’s strengths:

• A district heating infrastructure that is already well-deployed and reliable in Helsinki.
• Cutting-edge technical expertise in the management of energy flows.
• A track record of successful partnerships with major digital sector players.
• A clear commitment to sustainable solutions with a focus on renewable energy.

This approach translates into a pragmatic effort based on resource pooling and energy loss reduction. Rather than designing data centers as isolated entities, Helen integrates them into a dynamic urban energy ecosystem.

For more information on partnership search strategies in the sector, the platform Horizon Europe offers a good entry point. It also presents opportunities for data centers to engage in fruitful collaborations.

Service	Description	Benefits
Connection to the urban thermal network	Integration of heat from data centers	Optimization of overall energy consumption
Supply of clean electricity	Guaranteed renewable and reliable electricity	Reduction of carbon footprint
Comprehensive technical support	Assistance for energy implementation	Facilitation of integration and time savings

The company relies on dynamic collaboration, open to all profiles of operators from hyperscalers to Edge Computing players. This openness fosters diversity and flexibility in the regional energy fabric.

The technical challenges of integrating data centers into the district heating network

Although the benefits are numerous, the implementation also faces some technical difficulties that Helen rigorously addresses. Integrating systems as complex as data centers into an urban thermal network requires rethinking energy and health architecture.

The main challenges to overcome are:

• Adaptation of existing infrastructures – It is necessary to modify or strengthen the district heating network to accommodate new heat flows, which requires careful planning.
• Management of heat quality – The generated heat must be at a sufficient and stable temperature to be useful to the urban network.
• Energy synchronization – Ensure that the amount of heat produced matches the actual heating needs at all times.
• Maintaining tightness and insulation – Crucial to avoid thermal losses and guarantee overall efficiency.
• Ensuring continuity of electrical and thermal service – to avoid disrupting the operation of the data center or the heating network.

The expertise developed by Helen is also based on close collaborations with specialists in hardware and protocols adapted to this type of connection. Companies like Phoenix Contact offer reliable technical solutions to ensure service continuity and infrastructure security (Phoenix Contact – Data Centers).

Challenge	Description	Technical Solution
Network adaptation	Renovation and extension of the thermal network	Feasibility studies and reinforcement of pipelines
Heat quality	Temperature and stability of flows	Installation of regulation and control systems
Synchronization	Real-time management of thermal flows	Smart monitoring platforms
Insulation	Reduction of thermal losses	High-performance insulating materials and rigorous sealing

This approach does not overlook the importance of permanent monitoring and rapid intervention, a key point to ensure the durability of installations and the peace of mind of operators, like the practical technical advice that plumber Paul Leclerc provides on his specialized blog.

Call for applications: Helen is seeking partners to develop innovative projects

The Helen group is making a concrete call to data center operators and companies wishing to integrate into the district heating network of Helsinki. The goal is to foster the creation of a high-performing and sustainable energy ecosystem by bringing together motivated partners ready to tackle the technical and environmental challenges of tomorrow together.

Applicants must meet certain criteria:

• Commitment to renewable energy and reduction of carbon emissions.
• Technical adaptability and willingness to collaborate to optimize connectivity.
• Long-term vision on energy savings and environmental benefits.
• Availability to participate in pilot projects and experiments.

The Helen teams offer complete support from feasibility study to concrete implementation, with personalized follow-up and a quality guarantee. This framework greatly facilitates the decision-making process for operators and encourages innovation.

Operators who join this network benefit not only from better energy management but also from a strengthened image regarding environmental responsibility, a major asset against the growing demand for performance and eco-responsibility in the digital sector.

Criterion	Requirement	Advantage
Ecological commitment	Low carbon impact projects	Reputation and regulatory compliance
Technical flexibility	Ability to integrate new systems	Adaptation and innovation
Long-term vision	Sustainable and economic strategy	Optimization of energy costs
Participation in tests	Implementation of pilot projects	Access to a high-performing and scalable network

To learn more about partner research, interested parties can consult this specialized guide. The latter provides valuable advice for targeting the right actors and building strong collaborations.

Furthermore, special attention is paid to new technologies, planning methods, and the selection of suitable sites, as presented in the tools offered by ESRI France.

Future perspectives and the role of data centers connected to Helsinki’s thermal network

As the energy transition becomes a global imperative, the model proposed by Helen in Helsinki illustrates a sustainable project that is both ambitious and concrete. It is part of a deep desire to transform digital infrastructures into levers for energy savings and reduction of polluting emissions.

Data centers thus become responsible players in the urban landscape, participating in a local dynamic of valorizing energy resources. Such a method opens the way to:

• A more resilient thermal network capable of absorbing demand fluctuations through the modulation of thermal inputs from data centers.
• Optimization of urban infrastructures through increased pooling of energy flows and a reduction in investments in new capacities.
• A strengthening of the link between digital and sustainable development, two sectors often perceived as antagonistic.
• An opportunity for local industries to develop innovative and exportable solutions to other regions.

Relying on its experience, Helen envisions extending this system to other sectors, such as industry or residential areas, to open an integrated energy model across the entire metropolis.

Stake	Impact	Perspectives 2030
Energy efficiency	Reduction of primary energy consumption	Intelligent and connected thermal network
Emission reduction	Significant decrease in greenhouse gases	Targeted carbon neutrality
Economic development	Creation of innovative jobs in the energy sector	Export of Finnish technologies

This exemplary model could inspire other cities in the sustainable planning of digital and energy infrastructures. For those looking for leads to improve their own district heating network or to valorize wasted heat, resources exist, notably on Prime Coup de Pouce Heating, which offers practical aids and solutions at the local level.