Transformer Substations

Craftsmanship combined with decades of experience and innovative technology


  • Number one choice of grid operators

  • Casings made from premium quality concrete

  • Tailored solution for specific applications

  • Designs and tests compliant with IEC 62271-202

  • Available as consumer substation and lighting station for the greenhouse horticulture industry


Serge Kraaijeveld

Team Leader Project Sales

+31 6 22 52 84 74

Marcel van Beusekom

Account Manager Alliander & Stedin

+31 6 22 92 42 41

Compact Station

Alfen is an industry leader in the field of compact transformer substations. Over the years, the iconic Diabolo compact station became highly recognizable in many landscapes as grid operators have opted for this compact transformer substation on many occasions. The Alfen Diabolo is available in a large variety of capacities, which makes it the perfect transformer substation for every situation and application.

Accessible prefab stations

Accessible prefab stations

For situations that require more power and flexibility, Alfen delivers prefabricated accessible stations. We offer tailored stations to answer to the unique needs of every situation, but also empty casings to enable clients to create their own configurations. The modular construction of the prefab stations allow them to be used for virtually every possible application.

Indoor transformer substations

Indoor transformer substations

For the conversion of existing spaces to medium voltage facilities, Alfen offers indoor transformer substations. The area is converted into a suitable environment, compliant with all transformer substation requirements, while we completely outfit the compartment with medium voltage facilities. In this respect, we are of course aware that every building is built differently, and that every square meter inside a building is precious space. This is why our designs for indoor stations are fully customized and tailored to the specific situation.

Consumer substation

Consumer substation

The Alfen consumer substations are specifically designed for installing medium voltage facilities with measuring equipment. These solutions are therefore highly suitable for utility companies and have been accepted by grid operators as such. The Alfen consumer substations are highly flexible in terms of outfitting and were developed for all European closed medium voltage switches. Consumer substations can be delivered as a modular, compact station, or as a fully customizable and accessible room.

Special and customer-specific stations

Special and customer-specific stations

In addition to our sizeable portfolio of tailorable solutions, Alfen can also design specific solutions for electric infrastructure. In close cooperation with both grid operators and municipalities, we developed numerous customer-specific stations. One of the most iconic inventions is our design of the so called Peperbus (Pepper pot) transformer substation. This station has come to define many landscapes, such as the canals in Amsterdam, where it has a dual function as an advertising column. The custom stations developed by Alfen can either be used for electricity or gas.

Transformer substation rentals

Alfen transformer substations are perfect solutions to use during temporary projects. This provides for a reliable energy supply, while eliminating the need to invest in purchasing a substation. Alfen provides a complete solution for its clients by carrying out the entire advice and delivery process, by offering advice and carrying out the placement, assembly and connecting the station, while decommissioning the station and returning everything once the project is completed.


  • Grid Operators
  • Greenhouse Horticulture
  • Industry
  • Sustainable Energy


  • Energy storage Scholt and Giessenwind

    Energy storage Scholt and Giessenwind

  • Grid operator Liander

  • Grid operator Enexis

  • Enexis Grid Automation

  • Looije Tomatoes

  • Kesgro Nursery

  • Greenhouse horticulturist NoordVliet

  • HTM Tram operator in The Hague

  • Electric energy supply Van Bree-Rijks Nursery

    Van Bree-Rijks Nursery

  • Gerbera United

  • Conline-Rhenania

  • Tesla Superchargers

  • Van Uffelen Flowers

  • S.O. Natural

Curious what we can do for you?

With its large range of in-house developed products and vast experience as systems integrator, Alfen is building the electricity grid of the future: reliable, sustainable and innovative. Call us at +31 36 54 93 400 or send an e-mail.

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