Energy Supply

Wherever people are, there is a need for a stable power supply for our homes, businesses, road lighting, vehicle charging points, urban light rail systems and more. We primarily provide consultancy on construction projects within utilities and infrastructure, such as electricity transmission and distribution, roads, bridges, railways and light rail systems.

Complete solutions

We have a broad team of technical specialists and consultants who can support every stage of a project from 0.4 to 400 kV, including client advisory services, project development, design, testing and simulation, surveying, health and safety coordination, environmental impact assessments EIA, utility diversions, architectural integration of facilities and more. In this way, we ensure that you as a client receive a complete solution tailored to the surrounding urban environment and the needs of users.

In addition, we have access to a very strong international network of energy experts and consultants, whom we involve as needed in the delivery of local Danish projects.

transmission system operators

For the Swedish TSO, Svenska kraftnät, SYSTRA has contributed to the refurbishment of two substations in Korsselbränna and Rätan, which had reached the end of their technical service life. As part of the project, the first section of the connected 220 kV overhead lines had to be relocated and rebuilt. SYSTRA was responsible for the design of the geotechnical works, foundations, tower positioning, overhead lines and entries to the substations.

Greener cruise tourism

To reduce diesel emissions from cruise ships moored along the quay in Copenhagen, By & Havn has established Copenhagen’s first shore power facility for cruise ships.

With the completed project, cruise ships can now connect to shore power, allowing the ship’s generators and/or engines to be switched off while in port. According to figures from the City of Copenhagen, this reduces pollution at the quay by 90 per cent. The facility is the largest shore power installation in Europe and, once fully expanded in 2028, will be able to supply shore power to five ships simultaneously.

As consultant to By & Havn, SYSTRA was responsible for the design and construction of the power supply system, helping to make cruise tourism significantly greener.

On 2 June 2025, the shore power facility was inaugurated by His Majesty King Frederik.

Phto: Peter Sørensen for By & Havn

Other of our energy supply projects:

Client advisory services and tendering for a 132 kV substation for the Fehmarn Tunnel
Feasibility studies for the transport and storage of CO2
Shore power supply for tugboats at Orientkaj
Planning and design of new 132 kV interface cabinets for Energinet’s supply to Banedanmark’s railway transformers
Power supply for battery trains on the Skjern–Holstebro line
Ringvej Syd, Horsens climate adaptation contract, power supply for coastal protection facilities

our services

Project development and regulatory approvals: EIA, environmental assessments, permits, public consultations, coordination with utility companies, and planning with DSOs/TSOs.
System design and engineering: substations, converter stations, switchgear, cables, and SCADA.
Shore power for ships and ferries: design of substations and cables (0.4 kV–132 kV), sizing, and protection equipment.
Design of high-voltage lines, whether cable or overhead line.
Testing, simulation, and grid studies: load flow, short-circuit analysis, harmonic currents, and transient protection.
Offshore: design of electrical panels for surge protection, cable specifications for cooling in wind turbines, and grid connection of wind turbines.
CO2 transport by rail, including route alignment to terminals and storage facilities, assessment of logistics constraints on the main network, and design of loading tracks and platforms.
CO2 storage: environmental assessment, required planning approvals, and permits.
Protection of critical infrastructure against hybrid threats in relation to the Network and Information Security 2 EU Directive (NIS2) and the Critical Entities Resilience EU Directive (CER).
Within the energy market, we also offer services in client advisory, utility diversions, health and safety, environment, sustainability, construction management, commissioning, and operations.