Executive team

Simon Mackenzie, Grad Dip BS (Dist), Dip Fin, NZCE

Group Chief Executive Officer
Since joining Vector in 1998, Simon has held a range of roles spanning operational, strategic and leadership responsibilities prior to his appointment as Group CEO in February 2008. He has extensive experience in the infrastructure sector, including strategy, regulation, network management, information technology, and telecommunications, in addition to international experience in the construction and consultancy sectors. Simon’s tertiary qualifications include engineering, finance and business studies, and the Advanced Management Programme at the Wharton School, University of Pennsylvania.

Alex Ball, BEng (Hons), ACGI, CA, SA fin

Chief Financial Officer
Alex leads the finance team and is responsible for financial and management reporting, risk management, corporate finance, treasury, legal, tax and property. He has broad experience in the areas of financial reporting and management, risk management and corporate development. He joined Vector from Ernst & Young where he led its national financial services practice and was a partner in its assurance and advisory division. Prior to his accounting career, he worked in the UK power generation industry and holds an engineering degree.

Allan Carvell, BCom, Dip Com (Econ)

Group General Manager Regulation and Pricing
Allan’s responsibilities include all aspects of regulatory policy, pricing, reporting and risk, and Government relations. In addition to his extensive regulatory and pricing experience particularly in the electricity sector, Allan’s background includes finance and treasury management, legal, IT and HR. Prior to joining Vector he was general manager finance and commercial at Unison Networks Limited. Allan has completed an Accelerated Development Programme at the London Business School and is a member of the Institute of Directors.

Sylvia Hunt, BBS, GradDipBusStuds (HRM)

Group Manager Organisational Development
Sylvia's role encompasses human resources, health and safety, information management and Vector's NZQA accredited private training institution, Utilitech. She has a broad range of experience in senior human resource and corporate services roles in a number of sectors including financial services, dairy and forestry. Prior to joining Vector, Sylvia held the position of group manager human resources, with the Crown Research Institute, SCION.

Daniel McCarthy, M.Eng, M.A. (Hons)

Group General Manager Commercial
Daniel leads commercial activity and customer relationships across the Group's infrastructure businesses - electricity, gas and telecommunications. Daniel brings commercial, strategic and international experience to Vector. In his last role, he was commercial director for Avis Rent a Car in the UK. Prior to that, he was a strategy consultant to large corporates in the USA, Europe and Asia Pacific. His early career in brand management and consumer products will help Vector build on its customer focus, as well as delivering strong commercial outcomes for shareholders.

David Thomas, BSC, BE (chem) hons

Group General Manager Gas Trading and Metering
David leads Vector’s gas wholesale business, LPG, and metering. He has extensive experience in the energy trading environment and operational expertise in the energy sector. Previously he was general manager operations at Contact Energy, where he was responsible for Contact’s power stations and generation development, and he has also held roles at BP and Fletcher Challenge in New Zealand as well as Canada and Europe. David has been with Vector since September 2008.

David Tompkins, BA Sc, M Eng, MIPENZ, Dip B Mgt, Dip Int Fin

Group General Manager Asset Investment
David’s role encompasses electricity and gas network investment, strategic asset planning, asset performance and engineering. David has over 30 years’ experience in asset development and management, engineering and contracting, as well as business development. He joined Vector in January 2002 as General Manager Service Delivery after returning from Canada where he managed a number of North American power developments.

Andries Van Der Westhuizen, BComm (Law)

General Manager Information Technology
Andries is responsible for all aspects of Vector’s information technology. He has considerable experience in IT operations, project and contract management both in New Zealand and South Africa. Andries joined Vector in 1997, during which time he has led projects to separate Mercury Energy and Vector information systems, merge United Networks and NGC systems, and outsource commodity IT infrastructure. Prior to joining Vector, he worked for Sasol (petro-chemical industry) in their financial and contract departments.

David Worsnop, BE Hons

Group General Manager Service Delivery
David leads Vector’s service delivery activities across both the gas and electricity distribution and transmission networks. David brings a wealth of expertise to Vector having had over 35 years’ experience in the infrastructure sector. He joined Vector having previously been the CEO of Hastie NZ, an Australasian building services and climate control group of companies.