Energy Distribution

Grid companies are facing challenges as electrification accelerates. For Holtab, this development has led to new collaborations and more innovative solutions.

The island of Stora Fjäderägg outside Umeå is famous for nature lovers and birdwatchers. When Umeå Energi future-proofs the island’s power supply, Holtab will be involved in delivering a custom-built compact secondary substation (CSS) with a reserve power unit.

In cooperation with Schneider and NRGi, Holtab delivered a complete mobile station with switchgear and control equipment.

In the past, customers simply ordered a standard station on the basis of their needs. Today’s approach is rather different. They are going for long-term agreements which already cover a functionality and technology fully prepared for the expected requirements of tomorrow’s systems.

Holtab’s distribution stations have been described as an innovative project in which they are built in a factory environment and supplied fully tested and ready for use. Our collaboration with E.ON Elnät has led to further optimisation of these procedures.

Vattenfall Elanläggningar AB has been a business partner of Holtab for many years, with a record of several successful projects. One project, which started in autumn 2014 and still ongoing, concerns the delivery of mobile transformer stations that Vattenfall Elanläggningar offers its end customers.

The new regulatory requirements imposed by the Swedish Energy Markets Inspectorate (Ei) mean that grid operators must secure themselves against shorter outages. Öresundskraft opted to invest in two mobile distribution stations to be on the safe side.