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Safeguarding surrounding ecosystems

Minimizing local impact

Eliminating mineral oil leakages and enhancing safety is vital.

Our experience with biodegradable insulation fluids is unrivaled, with over 200 power transformers installed in 21 countries around the world, totaling in excess of 10,500 MVA delivered and 950 years in service. Plus, over 65,000 distribution transformers (end 2020).

Transformers containing these fluids, which are biodegradable and safer, not only protect the local environment but also people while also increasing the lifetime of the transformer and decreasing the footprint of the installation – using less space and resources.


  • Biodegradable​

  • Higher flash point, minimizing fire hazards​

  • Reduced impacts of eutrophication and fresh-water toxicity​

  • Longer lifetime​

  • Footprint and cost reduction​

  • Tested up to 420 kV/BIL 1425 kV​

EconiQ Transformers
 EconiQ™ Transformers

EconiQ™ Transformers

Co-creating for a sustainable energy future

Transformer health in the real world

Enhanced safety for people

Safety is our priority

Responsible use of resources

Doing the most with what we have

Life Cycle Analysis

We are with you from start to finish

Customer co-creation

Collaborative sustainability journey

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Hitachi Energy Power Transformers


Hitachi Energy offers distribution and power transformers, Dry-type and EconiQ™ Transformers as well as services, for industrial and commercial applications.