ESI has a long history of service to the Electrical Supply Industry and has the experience and experience to meet customer requirements

ESI Group commenced in New Zealand as a business unit of an Electrical supply Authority before being privatized as a separate company, Energy Services International (NZ) Pty Ltd, in 1992. ESI (NZ) widely recognised as the leading Transformer Oil Treatment and filtration specialists in New Zealand, Phillipines and Malaysia, with extensive plant and operational experience. In 2006 ESI began providing oil reclamation services in Indonesia, in 2007 to West Malaysia and 2009 to Philippines.

We provide transformer oil maintenance services to power utility and industrial customers in New Zealand and SE Asia.

ESI enjoys a close relationship with SD Myers International (SDMI), a U.S.A. corporation with more than 40 years of experience in transformer maintenance. ESI manufactures transformer oil filtration, regeneration, PCB dechlorination and decontamination plants.

ESI will continue to provide and expand the following services offered throughout South East Asia and New Zealand.

• Transformer oil reclamation including desludging, on- or off-line
• Transformer oil vacuum drying
• Oil sampling and testing
• Supply of Transformer Oil Filtration equipment
• Manufacture & supply of tap changer filter units
• Supply, installation and hire of passive filtration and dry out systems for main transformer transformer tanks
• Supply of new new or regenerated oil.
• Supply of transformer oil filtration equipment.