Power networks for reliable energy supply
Reliable power networks are essential for renewable energy production. NYAB delivers complete electrical infrastructure solutions from internal networks to grid connection.


Proven where it matters most.
110-400 kV
80 MVA
900 MW
Connecting renewable energy to the grid.
Renewable energy projects only create value when the electricity they generate can be transmitted safely and efficiently. NYAB delivers power networks for wind farms and solar parks, from internal collection systems to grid connections, helping customers bring renewable energy projects into operation on schedule and with confidence.
By combining expertise in infrastructure, power networks, substations and renewable energy projects, we deliver integrated solutions that support reliable energy production, efficient power transmission and long-term network performance.
Where energy becomes available.
Before electricity generated by a wind farm or solar park reaches homes, industries and communities, a complex electrical infrastructure network must be in place. Internal power networks, transformers, substations and grid connections all need to function as one integrated system.
Whether connecting a new solar park, building electrical infrastructure for a wind farm or expanding existing network capacity, we deliver projects with a strong focus on safety, technical performance and reliable commissioning.

Everything needed for a complete power network.
We deliver complete electrical infrastructure solutions for renewable energy projects and support customers throughout the entire implementation process.
Our expertise includes:
- Internal power networks for wind and solar parks
- AC and DC cabling systems and connections
- Inverters and transformer stations
- Substations (110/33 kV and 110/20 kV)
- Grid connection lines, including cable and overhead line solutions
- Logistics and site planning for large project areas
- Testing, commissioning and documentation
- Coordination with transmission and distribution network operators
- Compliance with grid company and Fingrid requirements
Planned as part of the whole.
Power networks are not delivered in isolation. Our approach integrates electrical infrastructure into the wider renewable energy project from the earliest stages of development.
In practice, this means:
- Early-stage planning and coordination with the overall project programme
- Proactive risk management to identify technical and delivery risks
- Close collaboration with clients, suppliers and network operators
- Integrated construction planning alongside civil, mechanical and electrical works
- Continuous monitoring of schedule, quality and progress
- Testing and commissioning processes that support a smooth grid connection
- Clear documentation and reporting throughout the project lifecycle
This helps minimise delays and ensures a controlled transition from construction to energisation.
Expertise across renewable energy infrastructure.
Integrated renewable energy delivery
We combine infrastructure, power network, substation and energy expertise within one project organisation, reducing interfaces and improving coordination.
Proven project execution
Our teams have extensive experience delivering electrical infrastructure for large renewable energy developments across the Nordics.
Grid connection expertise
We understand the technical and operational requirements of network owners and work closely with utility companies and Fingrid throughout project delivery.
Strong HSEQ culture
Safety, quality and environmental performance are integrated into every phase of our projects through structured HSEQ management and continuous follow-up.
Building the networks behind energy production.
As investments in renewable energy continue to grow, so does the need for reliable electrical infrastructure. Wind farms, solar parks and future energy storage solutions depend on efficient internal networks and secure grid connections.
As part of NYAB’s wider renewable energy offering, our power networks business helps transform generation capacity into operational energy assets by connecting production safely and efficiently to the grid.
Power networks in practice.
Explore a selection of projects that demonstrate how we deliver complete electrical infrastructure solutions for renewable energy developments, coordinate multiple technical disciplines and enable reliable power transmission from generation to grid connection.

Utajärvi solar park
Electrical infrastructure supporting one of Finland’s largest solar power developments, including grid connection and power transmission solutions.

Karahka wind farm
Delivery of internal electrical networks and connection infrastructure enabling renewable energy production and transmission.

Mikonkeidas wind farm
Power network solutions supporting the safe and efficient operation of a large-scale wind energy project.
Talk to us about your next project.
Tell us where you are in the process, and we will take the next step together, from planning to execution.
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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Daniel Johansson
Business Area Manager
Industry & Energy, Sweden
+46 70 362 24 13
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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 power network projects.
What types of power network projects does NYAB deliver?
We deliver electrical infrastructure for wind farms and solar parks, including internal networks, substations, transformer solutions and grid connection infrastructure.
Can NYAB provide a complete turnkey delivery?
Yes. We provide comprehensive delivery covering procurement, installation, testing, commissioning and documentation.
Do you deliver both AC and DC systems?
Yes. Our expertise includes AC and DC cabling systems and the associated connections required for renewable energy projects.
Can you deliver grid connection infrastructure?
Yes. We deliver connection solutions including 110 kV cable and overhead line connections as part of integrated renewable energy projects.
How do you ensure successful commissioning?
Through detailed planning, continuous quality assurance, testing and close collaboration with clients, equipment suppliers and network operators throughout the project.
Why are power networks important for renewable energy projects?
Power networks are essential for collecting, transforming and transmitting electricity from renewable energy assets to the grid. Without reliable network infrastructure, electricity generation cannot be efficiently utilised.
Three paths forward.
See what’s taking shape
Explore projects across infrastructure, energy and industry, and see how different capabilities come together in practice.
Power networks are part of something bigger
Power grids, substations and transmission lines are connected parts of the same energy system. Discover the expertise that brings planning, construction and grid infrastructure together.
Complex projects. Shared direction.
Discover how our collaboration model Kraftsamla helps clients, partners and project teams align around shared goals and clear responsibilities.