{
  "language": "en",
  "interfaceLanguage": "ar",
  "url": "https://voltformer.com/ar/news/prysmian-certifies-525kv-subsea-hvdc-cable-90c-2500mw-throughput",
  "slug": "prysmian-certifies-525kv-subsea-hvdc-cable-90c-2500mw-throughput",
  "category": "transmission-substations",
  "publishDate": "2026-09-20",
  "sourceName": "Prysmian Group Technology & Innovation Division",
  "sourceUrl": "https://www.prysmiangroup.com/en/media/press-releases/525kv-hvdc-cable-90c-qualification-milestone-september-2026",
  "readingTimeMinutes": 5,
  "tags": [
    "Prysmian",
    "HVDC Cable",
    "525 kV",
    "Subsea Interconnector",
    "Transmission Capacity",
    "Cross-Linked Polyethylene"
  ],
  "content": {
    "title": "Prysmian Certifies 525 kV Extruded Subsea HVDC Cable Systems to 90°C, Elevating Bipole Transmission Capacity to 2.5 GW",
    "summary": "Prysmian has completed full CIGRE and IEC type-qualification tests on its next-generation ±525 kV extruded XLPE submarine HVDC cable system at an elevated conductor operating temperature of 90°C, expanding transmission capacity from 2.0 GW to 2.5 GW per bipole.",
    "sections": [
      {
        "heading": "A 25% Increase in Power Throughput Without Seabed Expansion",
        "paragraphs": [
          "Traditional extruded HVDC subsea cables operate with maximum conductor thermal limits of 70°C to avoid premature dielectric space-charge accumulation and insulation degradation.",
          "By synthesizing an advanced proprietary cross-linked polyethylene (XLPE) compound and high-conductivity copper conductors, Prysmian successfully validated 90°C continuous operation, unlocking 2,500 MW throughput on a standard 525 kV bipole link."
        ]
      },
      {
        "heading": "Transforming North Sea and Mediterranean Grid Architectures",
        "paragraphs": [
          "The qualification delivers immediate benefits to European TSOs developing 2 GW standardized offshore grid hubs, allowing existing seabed cable corridors to transmit an additional 500 MW of renewable power without widening environmental rights-of-way.",
          "Commercial manufacturing will commence across Prysmian’s specialized submarine plants in Arco Felice (Italy) and Pikkala (Finland) for upcoming trans-European subsea interconnectors."
        ]
      }
    ]
  },
  "companies": []
}