Private company

Hydro Energi

Logo: Hydro, Public domain, via Wikimedia Commons4

Hydro Energi is a Norwegian energy company based in Oslo, founded in 1903.1 It employed 278 people in 2026.1 It is part of Norsk Hydro.1

Hydro Energi AS, tidligere Aktieselskabet Rjukanfos og Norsk Hydro Produksjon AS, er et kraftselskap i Hydro-konsernet. Selskapet eier helt eller delvis eller er operatør for kraftverk i Telemark, Sogn, Odda, Suldal og Vennesla.2 From the Norwegian Wikipedia, CC BY-SA 4.0

Last updated Oct 20, 2026.

Overview

Apr 30, 1903Founded1
  • Industryelectricity generation1
  • HeadquartersOslo, Norway1
  • Legal formaksjeselskap1
  • LEI549300UBLOMF800LIC193
  • StatusActive3
  • LEI statusIssued and current3
  • Registered addressVækerø, 0283 Oslo, Norway3
  • Registered withThe Brønnøysund Register Centre, 930 187 2403

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Såheim hydropower station in Rjukan
Photo: Jac Brun, Public domain, via Wikimedia Commons5

Corporate structure

Hydro Energi is part of a group headed by Norsk Hydro. 80 entities, 31 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Norsk Hydro Oslo, Norway
    • Hydro Aluminium Oslo, Norway
      • Slovalco Žiar nad Hronom, Slovakia
      • ALUMETAL SPOLKA AKCYJNA (ALUMETAL SPÓŁKA AKCYJNA) Subsidiary · Kęty, Poland
        • T+S SPOLKA Z OGRANICZONA ODPOWIEDZIALNOSCIA (T+S SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ) Subsidiary · Kęty, Poland
      • HYDRO ALUMINIUM CLERVAUX S.A. Subsidiary · Clervaux, Luxembourg
      • HYDRO ALUMINIUM DEESIDE LIMITED Subsidiary · Wrexham, United Kingdom
    • Hydro Energi Oslo, Norway
      • Hydro Transport Subsidiary · Notodden Municipality
      • Lyse Kraft Subsidiary · Stavanger, Norway
      • HYDRO ENERGI INVEST AS Subsidiary · Oslo, Norway
      • HYDRO HAVRAND AS Subsidiary · Oslo, Norway
      • HYDRO REIN HOLDING AS Subsidiary · Oslo, Norway
        • HYDRO REIN AS Subsidiary · Oslo, Norway
      • Norsk Hydro Glomfjord Fabrikker Owned · Meløy, Norway
      • Norsk Hydro Notodden Fabrikker Owned · Notodden Municipality, Norway
      • Norsk Hydro Porsgrunn Fabrikker Owned · Porsgrunn, Norway
      • Norsk Hydro Rjukan Fabrikker Owned · Tinn, Norway
    • Hydro Extruded Solutions Subsidiary · Oslo, Norway
      • Sapa AB Subsidiary · Stockholm
      • HAI EXTRUSION S.R.L. Subsidiary · Arad, Romania
      • Hydro Extruded Solutions AB Subsidiary · Finspång, Sweden
        • HYDRO ALUMINIUM EXTRUSION PORTUGAL HAEP, S.A. Subsidiary · Vila Nova De Gaia, Portugal
        • HYDRO BUILDING SYSTEMS ATESSA S.R.L. Subsidiary · Atessa, Italy
        • Hydro Building Systems Sweden AB Subsidiary · Vetlanda, Sweden
        • HYDRO EXTRUSION ITALY S.R.L. Subsidiary · Ornago, Italy
        • HYDRO EXTRUSION LICHTERVELDE Subsidiary · Lichtervelde, Belgium
        • Hydro Extrusion Sweden AB Subsidiary · Vetlanda, Sweden
        • Sapa Precision Tubing Pune Private Limited Subsidiary · Pune, India
      • SAPA BUILDEX ATESSA S.P.A. Subsidiary · Atessa, Italy
      • 海德鲁铝业（苏州）有限公司 Subsidiary · 苏州市, China
    • Hydro Vigelands Brug AS Subsidiary · Vennesla, Norway
    • Hydrovolt Subsidiary
    • Norsk Hydro Deutschland Subsidiary · Grevenbroich, Germany
    • Yara International Subsidiary · Oslo, Norway
      • Yara (Germany) Subsidiary · Dülmen, Germany
      • YARA ASIA PTE. LTD. Subsidiary · 100% · Singapore, Singapore
      • yara tertre sa/nv Subsidiary · 100% · Saint-Ghislain, Belgium
      • P.T. YARA INDONESIA Subsidiary · Jakarta Pusat, Indonesia
      • YARA (THAILAND) LIMITED (บริษัท ยารา (ประเทศไทย) จำกัด) Subsidiary · Ratchathewi, Thailand
      • YARA AFRICA FERTILIZER (PTY) LTD Subsidiary · Gauteng, South Africa
      • YARA ANIMAL NUTRITION SOUTH AFRICA (PTY) LTD Subsidiary · Umbogintwini, South Africa
      • YARA ARGENTINA SA Subsidiary · Buenos Aires, Argentina
      • YARA BRASIL FERTILIZANTES S.A. Subsidiary · Porto Alegre, Brazil
      • YARA CHILE FERTILIZANTES LIMITADA Subsidiary · Santiago, Chile
      • YARA COLOMBIA S.A. Subsidiary · Cartagena, Colombia
      • YARA FERTILISERS INDIA PRIVATE LIMITED Subsidiary · New Delhi, India
      • YARA FERTILIZERS PHILIPPINES INC. Subsidiary · Taguig City, Philippines
      • YARA GROWTH VENTURES AS Subsidiary · Oslo, Norway
      • YARA GUATEMALA, SOCIEDAD ANONIMA Subsidiary · Guatemala City, Guatemala
      • YARA NORGE AS Subsidiary · Oslo, Norway
      • YARA S.A. Subsidiary · Zaventem, Belgium
      • YARA SWITZERLAND LTD. Subsidiary · Genève, Switzerland
      • YARA VIETNAM CO. LTD (CÔNG TY TNHH YARA VIÊT NAM) Subsidiary · Ho Chi Minh City, Vietnam
    • INDUSTRIFORSIKRING AS Subsidiary · 100% · Oslo, Norway
    • Remi Claeys Aluminium Subsidiary · 100% · Lichtervelde, Belgium
    • De Norske Salpeterverker Subsidiary · Norway
    • EXTRUSION SERVICES Subsidiary · Luce, France
    • Hydro Aluminium Giesserei Rackwitz GmbH (Hydro Aluminium Gießerei Rackwitz GmbH) Subsidiary · Rackwitz, Germany
    • Hydro Aluminium High Purity GmbH Subsidiary · Grevenbroich, Germany
    • Hydro Aluminium International SA Subsidiary · Tolochenaz, Switzerland
    • Hydro Aluminium Recycling Deutschland GmbH Subsidiary · Dormagen, Germany
    • HYDRO ALUMINIUM UK LIMITED Subsidiary · Alfreton, United Kingdom
    • HYDRO BUILDING SYSTEMS FRANCE Subsidiary · Toulouse, France
    • Hydro Building Systems Switzerland AG Subsidiary · Mägenwil, Switzerland
    • HYDRO BUILDING SYSTEMS UK LIMITED Subsidiary · Tewkesbury, United Kingdom
    • HYDRO EXTRUSION ALBI (HEA) Subsidiary · Le Garric, France
    • HYDRO EXTRUSION CANADA, INC. Subsidiary · Ottawa, Ontario, Canada
    • Hydro Extrusion Deutschland GmbH Subsidiary · Achim, Germany
    • Hydro Extrusion Drunen B.V. Subsidiary · Drunen, Netherlands
    • HYDRO EXTRUSION LUCE/CHATEAUROUX Subsidiary · Luce, France
    • Hydro Extrusion Ludenscheid GmbH (Hydro Extrusion Lüdenscheid GmbH) Subsidiary · Lüdenscheid, Germany
    • and 12 more

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

What it owns

What Hydro Energi reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Stakes and holdings (Wikidata)

  • Lyse Kraft
  • Norsk Hydro Glomfjord Fabrikker
  • Norsk Hydro Notodden Fabrikker
  • Norsk Hydro Porsgrunn Fabrikker
  • Norsk Hydro Rjukan Fabrikker

Things Wikidata records the company as owning, with the share when stated.1

Subsidiaries and ownership

Parent company

Subsidiaries

Also owns

  • Lyse Kraft
  • Norsk Hydro Glomfjord Fabrikker
  • Norsk Hydro Notodden Fabrikker
  • Norsk Hydro Porsgrunn Fabrikker
  • Norsk Hydro Rjukan Fabrikker

From Wikidata.1

Employees over time

  • 20262781

Timeline

  1. Dec 26, 2017Parent Directly consolidated by Norsk Hydro3
  2. Oct 18, 2013Renamed Name changed to Hydro Energi AS1
  3. Apr 30, 1903Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5