{
  "language": "en",
  "interfaceLanguage": "ar",
  "url": "https://voltformer.com/ar/news/rte-launches-tender-dunkirk-400kv-autotransformers-industrial-decarbonization",
  "slug": "rte-launches-tender-dunkirk-400kv-autotransformers-industrial-decarbonization",
  "category": "transformers-grid",
  "publishDate": "2026-09-21",
  "sourceName": "Réseau de Transport d’Électricité (RTE) France",
  "sourceUrl": "https://www.rte-france.com/actualites/appel-offres-transformateurs-400kv-decarbonation-dunkerque-septembre-2026",
  "readingTimeMinutes": 4,
  "tags": [
    "RTE",
    "400 kV",
    "Autotransformers",
    "France",
    "Decarbonization",
    "Green Steel",
    "Substations"
  ],
  "content": {
    "title": "RTE Launches Tender for Twelve 600 MVA 400/225 kV Autotransformers for the Dunkirk Industrial Decarbonization Corridor",
    "summary": "To supply gigawatts of clean nuclear and offshore wind power to massive new electric arc furnaces, hydrogen electrolyzers, and gigafactories in northern France, French transmission operator RTE has issued a tender for twelve 600 MVA 400/225 kV autotransformers.",
    "sections": [
      {
        "heading": "Electrifying France’s Heaviest Industrial Carbon Emitter",
        "paragraphs": [
          "The port of Dunkirk accounts for nearly 20% of France’s industrial greenhouse gas emissions. The conversion of conventional coal-fired blast furnaces to Direct Reduced Iron (DRI) electric arc furnaces requires an immediate 3,000 MW increase in electrical substation capacity.",
          "RTE’s tender specifies twelve 600 MVA three-phase 400/225 kV autotransformers featuring ultra-low-noise acoustic enclosures, online bushing tan-delta monitoring, and on-load tap changers engineered for severe dynamic cyclic loading."
        ]
      },
      {
        "heading": "Expanding the 400 kV Dunkerque-Lille Transmission Grid",
        "paragraphs": [
          "The transformers will be allocated across expanded switching substations at Grande-Synthe, Mardyck, and Warande, reinforced by new 400 kV double-circuit underground cable corridors.",
          "First unit deliveries will commence in late 2027, ensuring robust electrical commissioning in synchronization with ArcelorMittal’s electric furnace launch in 2028."
        ]
      }
    ]
  },
  "companies": []
}