# Hitachi receives order for world's first 550 kV SF₆-free GIS from Chubu Electric Power Grid

Hitachi received an order from Chubu Electric Power Grid for Hitachi Energy's EconiQ 550 kV SF₆-free gas-insulated switchgear, the world's first such project. The equipment reduces CO₂-equivalent emissions by 99%.

- Type: Contract
- Announced: 2026-03-12
- Where: Japan
- Status: announced
- Products: 550 kV SF₆-free gas-insulated switchgear
- Sectors: [Power Generation Equipment](https://endata.com/sectors/power-generation-equipment.md)

## Companies

- [Hitachi](https://endata.com/companies/1325.md) (supplier)
- [Chubu Electric Power Grid](https://endata.com/companies/90835.md) (customer)

## Sources

- [hitachienergy.com](https://www.hitachienergy.com/ca/en/news-and-events/press-releases/2026/03/worlds-first-sf6-free-550kv-gis-en), 2026-03-12: "Hitachi, Ltd. announced today that it has received an order from Chubu Electric Power Grid for Hitachi Energy’s EconiQ Ⓡ 550 kilovolt (kV) sulfur hexafluoride (SF 6)-free gas-insulated switchgear (GIS)."
- [hitachienergy.com](https://www.hitachienergy.com/me/en/news-and-events/press-releases/2026/03/worlds-first-sf6-free-550kv-gis-en), 2026-03-12: "Hitachi, Ltd. announced today that it has received an order from Chubu Electric Power Grid for Hitachi Energy’s EconiQ Ⓡ 550 kilovolt (kV) sulfur hexafluoride (SF 6)-free gas-insulated switchgear (GIS)."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.