BESS – Battery energy storage for a more flexible energy system
Energy storage is becoming a critical part of the energy transition. NYAB delivers BESS projects from planning to commissioning, helping customers create more flexible, reliable and future-ready energy infrastructure.
Delivering energy storage infrastructure at scale.
500 MWh
140 MWh
400 kV
Storage that strengthens the energy system.
As renewable energy generation continues to grow, energy storage plays an increasingly important role in balancing production and consumption. Battery Energy Storage Systems (BESS) store electricity for later use, helping stabilise the grid, manage fluctuations in energy supply and demand, and improve the efficiency of renewable energy generation. NYAB delivers BESS projects from early planning and construction through to commissioning, helping customers improve grid flexibility, optimise energy use and support the transition to a more resilient power system.
By combining expertise in power networks, substations, grid connections and infrastructure, we provide integrated energy storage solutions that support both today’s operational needs and tomorrow’s energy markets.
Where flexibility meets reliability.
As energy systems become increasingly dependent on renewable generation, the ability to store and manage electricity is becoming essential. Battery Energy Storage Systems help stabilise power networks, balance fluctuations in supply and demand, and support reliable operation of the grid.
Whether supporting a wind farm, solar park or standalone storage facility, we deliver BESS projects with a strong focus on safety, technical performance and long-term operability.
Everything needed for a complete BESS project.
We deliver battery energy storage projects on a turnkey basis and support customers throughout the entire project lifecycle.
Our expertise includes:
- Turnkey BESS delivery from procurement to commissioning
- Civil works and foundations for battery storage facilities
- Battery container installation, cabling and electrical connections
- Construction of 110-400 kV grid connection substations
- Grid connection infrastructure, including overhead lines and cable solutions
- Automation and SCADA systems
- Testing, commissioning and energisation
- Coordination with transmission operators, network companies and authorities
- Documentation and compliance management
This enables us to deliver a fully integrated solution with one accountable partner from project development to commercial operation.
Structured delivery from concept to operation.
BESS projects are delivered through NYAB’s phased execution model, where planning, procurement, construction and commissioning are managed as one coordinated process.
In practice, this means:
- Early planning and risk management to identify technical, commercial and grid-related requirements
- Integrated project execution where infrastructure, substations and energy storage systems are coordinated from the outset
- Long-term operational focus to ensure reliability, maintainability and future scalability
- Close collaboration with clients, network operators and authorities throughout the project lifecycle
- Transparent reporting and project controls to support informed decision-making
- Testing and commissioning processes that ensure safe and successful energisation
- Grid compatibility verification to support smooth network integration
Expertise for integrated energy solutions.
Hybrid-ready solutions
We help customers integrate battery storage with wind power, solar power and wider energy infrastructure to create more flexible energy systems.
Grid-first delivery
Our experience in substations, transmission lines and grid connections allows BESS projects to be developed with grid requirements in mind from the earliest project stages.
One accountable partner
From civil works and engineering to commissioning and handover, we bring multiple capabilities together within one organisation. This creates clear accountability and efficient project execution throughout the project lifecycle.
Nordic energy expertise
Our experience from energy projects across Sweden and Finland enables us to navigate both the technical and regulatory requirements of different project environments.
Supporting the energy transition.
Battery energy storage is becoming a critical component of modern energy infrastructure. As renewable energy generation increases, storage solutions help balance energy production and consumption, improve grid stability and create flexibility within the electricity market.
As part of NYAB’s offering, BESS strengthens our ability to deliver integrated energy solutions. We work with both standalone battery storage and hybrid solutions that integrate BESS with assets such as solar and wind. By bringing together energy storage, control systems, substations and grid connections within a coordinated delivery model, we help customers develop solutions tailored to the project and its grid requirements.
Energy storage projects in practice.
Explore a selection of projects that demonstrate how we deliver battery energy storage solutions, coordinate multiple technical disciplines and create reliable infrastructure for a more flexible energy system.
Manukangas BESS,
70 MW/140MWh
BoP BESS installation, extension of 110 kV bay, 80 MVA transformer and grid compliance process.
Leviäkumpu BESS, 35MW/70MWh
BoP BESS installation, 110 kV bay, 31.5 MVA transformer, 110 kV cabling to TSO substation and grid compliance process.
Utajärvi BESS,
20MW/40MWh
Complete BESS EPC delivered on a turnkey basis integrated into existing solar park including EMS/SCADA and grid compliance process.
Talk to us about your next project.
Tell us where you are in the process, and we’ll take the next step together, from early planning to commercial operation.
Finland
Antti Keskinen
Business Line Director
Power Networks, Finland
+358 44 425 2194
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Tapio Marttila
Construction Manager
Power Networks, Finland
+358 40 163 0671
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Pauli Lahti
Sales Manager
Power Networks, Finland
+358 41 731 0905
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Antti Palovaara
Sales Manager
Power Networks, Finland
+358 40 838 7072
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Sweden
Johannes George
Project Manager
Solar & BESS, Sweden
+46 76 764 44 81
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Leo Wallin
Head of Major projects
Sweden
+46 (0)70 415 26 02
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Questions about NYAB’s BESS projects.
What is a BESS project?
A Battery Energy Storage System (BESS) stores electricity for later use. Energy storage helps balance electricity production and consumption, improve grid stability and support renewable energy integration.
Can NYAB deliver a complete BESS project?
Yes. We provide turnkey delivery covering civil works, electrical infrastructure, substations, grid connection solutions, testing and commissioning. Our experience spans standalone BESS facilities as well as integrated energy storage solutions connected to wind farms, solar parks and wider energy infrastructure.
Do you build the grid connection infrastructure as well?
Yes. Our expertise includes substations, transmission lines, cable systems and other infrastructure required to connect energy storage facilities to the grid.
How do you ensure successful commissioning?
Through structured planning, close coordination with network operators, comprehensive testing processes and continuous quality assurance throughout the project.
Why are battery energy storage systems important?
Energy storage helps balance fluctuations in renewable energy generation, improves network reliability and provides the flexibility required for a modern, electrified energy system.
Can BESS projects be integrated with renewable energy developments?
Yes. Battery energy storage systems are commonly integrated with wind farms and solar parks to improve energy management, optimise power delivery and support efficient use of renewable generation.
Three paths forward.
See what’s taking shape
Explore projects across infrastructure, energy and industry, and see how different capabilities come together in practice.
From storage to grid connection
Battery storage projects require coordination across multiple technical disciplines. Explore the services that take projects from concept to operation.
Complex projects. Shared direction.
Discover how our collaboration model Kraftsamla helps clients, partners and project teams align around shared goals and clear responsibilities.