GARTH DIBLEY - Chief Executive

With extensive experience in the generation, retail, transmission, and distribution sectors of New Zealand’s electricity industry Garth  took up the position of Chief Executive at WEL Networks in September 2014. He previously held leadership roles at both Transpower and Meridian Energy. Appointed as General Manager Grid Performance at Transpower in 2010, he led operations and asset maintenance functions of the national grid. Prior to this, he was based at Meridian Energy, working as General Manager Markets and Production and then General Manager External Relations.
Garth has a Bachelor of Engineering (Mechanical) from the University of Canterbury and an MBA from Waikato University. He has completed executive training programmes at Kellogg and INSEAD business schools of management.


Michelle joined WEL in 2013 and has had various managerial roles within the business including billing, pricing, revenue and regulatory. Michelle brings strong commercial and analytical skills to her role with experience in central and local government and also within the competitive business sector. Managing the Revenue, Legal and Business Development Solutions functions, Michelle has responsibility for strategic planning and regulatory management. She has a Bachelor of Management Studies from the University of Waikato.

paul blue - GENERAL MANAGER Asset Management

Paul brings strong technical and management skills to his role at WEL Networks, which he took up in January 2015.
With responsibility for leading WEL’s Asset Management team, which oversees the functions of network planning and design, asset performance, quality and investment and system control. Prior to joining WEL Networks, Paul spent 13 years at Transpower (New Zealand national grid operator) in roles that included project management for the North Island Grid Upgrade project and as Upper North Island Regional Manager. Paul has an Honours degree in electrical engineering and has recently graduated with an MBA from Auckland University.

vicky costain - General Manager People & Performance

Vicky joined WEL Networks in 1998 and has held a number of roles within the organisation; from leading the risk, insurance, business continuity and internal audit functions through to her current role managing the Human Resources, Organisation Development, Health and Safety and Communication units.  She is responsible for ensuring these core business functions align with and support WEL’s business strategy, culture and values. Vicky has a Bachelor of Arts degree and a Post Graduate Certificate in Management Studies from the University of Waikato.


Julian Lonsdale - Chief Technology Officer

Julian has 25 years' experience across a broad range of senior IS/ICT design, delivery and management roles locally within Skycity, Spark and IBM NZ, and internationally with IBM India, CSC UK and British Telecom.  He enjoys delivering new IT systems and technology in partnership with the relevant business teams to deliver exciting new services and changes to existing services.  Julian joined the WEL team in June 2019 where he'll use his broad experience of delivering new products and services to support WEL's continuous improvement in IS/ICT delivery practices.

Wel Networks - Mat ONeill

Mat O’Neill - General Manager WEL Services

With a solid career in the electrical industry Mat brings a strong analytical and practical engineering skill set to his management role at WEL Services. In 1992, he completed his electrical apprenticeship with Waitaki Power Ltd and then went on to graduate from the University of Canterbury with a Masters Degree in electrical engineering in 2001. He began working at Genesis Energy’s Huntly Power Station from 2001 to 2012, followed by two years at Delta Utility Services in Dunedin. He then joined the WEL Networks team in 2014 as Asset Planning and Engineering Manager before being appointed as WEL Service General Manager in July 2017.


Primarily an experienced Corporate & Institutional banker, Sue has a wealth of international experience in the financial services, energy and IT sectors having held numerous senior or Chief Executive Roles in New Zealand, Australia, Asia and the USA. She also held the position of Group CFO with Auckland Council for three years until December 2017. Sue is a Member of the Australian and New Zealand Institutes of Company Directors, a Fellow of Certified Practicing Accountants Australia Ltd (CPA), a Member of Global Women and a finalist in the Women of Influence Awards 2016. She is also an independent non-executive director of Mainfreight, an NZX top 20 listed entity. Sue joined WEL as Group Chief Financial Officer in July 2018 and reports to the Board Chairman.