# Hitachi Energy and Enedis Sign $398 Million Framework Agreement for Eco-Efficient Transformers Across France

> Hitachi Energy and French distribution system operator Enedis have formalized major multi-year framework contracts valued at $398 million (€350 million) for the supply of high-efficiency, eco-friendly distribution and primary substation transformers designed to accelerate EV charging infrastructure and distributed renewable integration.

- **Publish Date:** 2026-09-28
- **Category:** transformers-grid
- **Reading Time:** 5 min
- **Original Source Citation:** [Hitachi Energy Media Relations & Enedis Press Center](https://www.hitachienergy.com/news/press-releases/2026/09/hitachi-energy-enedis-sign-398m-transformer-framework-french-distribution-grid)
- **Tags:** Hitachi Energy, Enedis, Transformers, France Grid, Distribution Grid, Eco-Friendly Fluid, Digital Monitoring, Decarbonization
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## Modernizing France’s National Distribution Network for Decentralized Energy

Enedis, which manages over 1.4 million kilometers of medium- and low-voltage electrical networks across mainland France, announced the milestone agreement on September 28, 2026. The contract ensures a secure supply of advanced transformers through 2030 to support surging electrification demands from industrial heat pumps, widespread electric mobility hubs, and localized rooftop solar installations.

The framework includes medium-power substation transformers (up to 40 MVA at 63 kV/20 kV) and high-density pad-mounted distribution transformers engineered for minimal no-load losses and enhanced overload resilience during summer heatwaves.

## Biodegradable Ester Fluids and Smart Digital Asset Health

A significant portion of the transformer fleet will utilize biodegradable synthetic and natural ester dielectric fluids instead of conventional mineral oil, providing superior fire safety ratings (K-class) and zero environmental persistence in sensitive water protection zones.

Each primary substation transformer will be delivered equipped with Hitachi Energy’s CoreTec digital monitoring package, featuring fiber-optic winding temperature probes, online dissolved gas analysis (DGA), and dynamic loading software compatible with Enedis’s automated grid operating platform.

## Securing European Supply Chain Resilience and Decarbonization

Units will be manufactured across Hitachi Energy’s European transformer manufacturing facilities, maximizing local European supply chains and utilizing low-carbon electrical steel and recycled copper conductors to minimize embodied lifecycle carbon emissions.

Enedis highlighted that the multi-year framework guarantees volume allocation during a period of acute global transformer shortages, ensuring France’s transition to net-zero power distribution remains on track.

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