Energy Storages

ONE Nordic is currently one of the largest contractors in electrical infrastructure in Sweden. One of our growing business areas is the installation and maintenance of energy storage systems.

Over the past year, several Swedish and international energy storage companies have established themselves in Sweden. They identify strategic locations where grid reinforcement is needed and develop energy storage systems with capacities starting from 1 MW and upwards. A 20 MW facility corresponds roughly to 300 electric vehicles.

We operate across the entire lifecycle of energy storage:

• Technical support in early project stages
• Construction and installation
• Grid connection
• Testing and commissioning
• Long-term operations and maintenance

By integrating these stages, we ensure that projects are not only delivered on schedule but also maintain high availability and stable performance over time.

For energy storage, reliability and availability are critical. The performance of a facility directly impacts both system value and business outcomes.

ONE Nordic has a strong operational foundation, including:

• Geographic presence across large parts of Sweden
• An established resource and delivery organization
• 24/7 readiness and availability, all year round

This enables us to respond quickly when needed and ensure that our customers’ facilities continue to operate—even as conditions change.

ONE Nordic has already been involved in a large number of energy storage projects in Sweden, with a growing installed capacity and a strong project portfolio.

This experience provides us with:

• Proven delivery capability
• Understanding of practical challenges in execution
• The ability to create solutions that work in both the project phase and ongoing operations

We combine hands-on experience with continuous development in a rapidly evolving market.

ONE Nordic works with both Swedish and international players in energy infrastructure and energy storage.

Our clients include project developers, investors, and IPPs, as well as EPC contractors, system suppliers, grid owners, and energy companies with high demands for delivery capability, availability, and long-term operations.

We operate across a wide range of project sizes—from smaller installations to large-scale energy storage—where both execution and reliable operations are critical to business success.

ONE Nordic has already contributed to the implementation of a significant number of energy storage projects in Sweden, with a growing installed capacity and a strong project portfolio.

We look forward to continuing to collaborate with leading players in the energy transition and contributing to the development of robust, long-term energy solutions.

The energy storage market in Sweden has developed rapidly in recent years. Following a period with many new entrants and a strong focus on ancillary services, a clear consolidation is now underway, with a smaller number of established players accounting for an increasing share of installed capacity.

At the same time, complexity is increasing. Large-scale energy storage represents capital-intensive investments, with business models reliant on multiple parallel revenue streams. Success requires not only the right technology and design, but also high operational reliability, availability, and the ability to deliver stable performance over time.

This is reshaping requirements across the entire value chain—from project development to operations.

In this evolving landscape, ONE Nordic’s role is to ensure that energy storage projects are not only planned and built, but also perform in practice. Through our operational capacity and ability to rapidly mobilize resources, we ensure high availability and robust operations—24 hours a day, year-round.

Ultimately, it is in operational delivery and long-term performance that real value is created.