AREVA T&D was the first to built 132 kv 90 MVA vegetable oil filled transformer, which is officially switched on by EDF's Energy Networks. This development will help EDF Energy Networks to continue meeting the needs of its customers in the East of England, whilst reducing its impact on the environment. This transformer is filled with Envirotemp FR3 vegetable oil, manufactured by cooper power systems, built in AREVA T&D's power transformer factory as part of EDF Energy Network's Programme to reinforce the electricity network.

Fluid is made from edible Soya beans and is fully bio degradable and has stronger fire-resistance. All these properties help to achieve higher levels of safety, together with major environmental improvements compared to the use of mineral oil. The project required AREVA T&D to manufacture two transformers to the same specification with the only difference being that one filled with FR3 fluid while the other contains traditional mineral oil.