About Us

Energy Services International (ESI) has been in operation in New Zealand as transformer oil and filtration specialists for over 25 years. The company is head quartered in Taranaki, New Zealand, with branches in Malaysia and the Philippines.

ESI has a long history of service to the Electrical Supply Industry and has the experience and expertise t meet customer requirements. In agreement with the global concern for protecting the environment, ESI regularly updates equipment and procedures to ensure that the most environmentally friendly plant and work methods are used.

ESI provides the following transformer oil maintenance services t Power Utility and Industrial customers in New Zealand and SE Asia:

Bill Young
General Manager
  • Oil Sampling & Testing
  • Transformer Oil Regeneration
  • Supply of Regenerated Transformer Oil
  • Supply of New Transformer Oil
  • Vacuum Filling of New Transformers
  • Vacuum Drying of Transformers
  • Supply & Installation of Filtration & Dry-Out Systems for Transformer Winding, Tap-Changer and Switchgear
  • Supply of Specialist Lubrication Oil Filtration Equipment

World Leader in Transformer Oil Filtration & Reclamation

ESI first established on-line Reclamation Plant and Procedures in New Zealand over 25 years ago but is still recognized as a world leader in Transformer Oil Filtration and Reclamation today.

The ESI Oil Reclamation Plants  are the latest in technology and of the highest performance available in the world today. They have an adjustable flow rate of 1,000 - 6,000 litre/hr, 96 kW Oil Heating Capacity and Vacuum pump/booster capacity of 720m3/hr. We have recently imported a 2nd 6,000 litre/hr machine to service growing demand

ESI’s reputation for excellent Environment, Health and Safety as well as the safe-guard of Clients Assets is second to none. Our plants are SCADA/PLC controlled with layered protection for the environment.

Our desire is to provide our customers with a service that will not only save them and their customers money, extend transformer life and reliability, but is also the best choice for the environment in recycling a valuable resource.

Professional, Experienced and Competent Staff

ESI employs staff who are competent to perform their tasks, with on-the-job training being done on a continuous basis. Plant operators are qualified, experienced and have bee trained to enable them to hold substation access and work permits in New Zealand.

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

Committed to the Environment & Community Health

ESI is committed to protecting community health and the environment.

The fulfillment of this commitment is considered an essential ingredient for the long term success of the company. ESI strives to conduct its business as a responsible steward of the environment, as well as safeguarding the health and well-being of our employees, neighbours and customers.

To ensure that ESI has the credentials and capabilities to plan, undertake and manage the transformer oil refurbishment activities with all due diligence, ESI uses the services of environmental consultants to provide strategic advice on various Environment, Health and Safety (EH&S) steps involved in successfully managing the business venture.

We’re always interested in new projects, big or small. Please don’t hesitate to get in touch with us regarding your transformer oil requirements.

If you want to contact us about any issue please call +64 6 7648662 or send us an email. If you would like to submit a proposal for consideration simply get a quote.

Our commitment

  • Deliver world-leading transformer oil specialist services
  • Protecting the Environment and People
  • Responding to Environmental Challenges
  • Increasing Productivity & Efficiency

Our Team

  • Experienced and Quailified Staff
  • Continuing Development
  • Continuing Education & Well-Being
  • Organisational Efficiency Benefiting our Clients
  • Strict Health & Safety Policies

Our Expertise

  • Oil Sampling & Testing
  • On and Off-Line Purification/Reclamation
  • Vacuum Filling of Transformers
  • Recycling of Oil to as-new Condition
  • Tap Changer & Trolley Filter Units
Head Office
Lipa City