Executive Management Team

Ken Sutherland
Group Chief Executive Officer

Ken Sutherland has extensive experience and leadership within the utility, infrastructure and electricity sector in New Zealand.

Ken is Chairman of the Board of the Electricity Networks Association and a member of the electricity sector’s Chief Executive Group.  He is also a member of the following organisations; the Business New Zealand Major Companies Group CEO Forum, the Energy Networks Association CEO Forum in Australia, the New Zealand Institute of Chartered Accountants and the New Zealand Institute of Directors.

As Group Chief Executive of the Unison Group, he is Chairman of Unison subsidiaries UnisonFibre Limited, Unison Contracting Services Limited, Unison Insurance Limited, and distribution transformer manufacturer, ETEL Limited.  Ken is also Chairman of ETEL Limited’s Australian domiciled subsidiary, ETEL Transformers Pty Limited.

Greg Morgan
Chief Financial Officer

Greg Morgan has over 14 years experience within the electricity transmission and distribution sector within New Zealand. 

Greg held senior accounting and consultancy positions within Chartered Accounting Public Practice for eight years before taking up corporate roles within the electricity industry. Prior to joining Unison as Financial Controller in 2005, Greg was the National Grid Management Accountant at Transpower NZ Ltd.

As Chief Financial Officer at Unison Networks Limited, Greg leads the Corporate Services team including Finance, Human Resources, Procurement and Logistics.  Key accountabilities include group operational and financial reporting, treasury management, business planning, people and performance, inventory management, property management, purchasing, fleet management.

Greg has a Bachelor of Business Studies (BBS) from Massey University, and is a Chartered Accountant (CA) member of the New Zealand Institute of Chartered Accountants.


Jaun Park
General Manager Networks and Operations 

Jaun Park has extensive international experience within the electricity sector, starting his career in South Africa in 1995, where he gained experience in the fields of power quality and power systems engineering. He relocated to New Zealand in 2004 and worked for Vector, before joining Unison in 2006 as Network Development Manager. In 2010 Jaun was appointed to the role of General Manager Networks and Operations.

Jaun is leading the development and management of Unison’s electricity infrastructure assets to ensure that the company can extract maximum value from its assets, today and into a changing energy future.

Jaun holds a Bachelor’s degree in electrical and electronic engineering, and a Master’s degree in electrical engineering. He is a chartered member of the Institute of Professional Engineers of New Zealand and CIGRE, and serves on a number of national working groups.

Mike McGarvey
Chief Information Officer & General Manager Unison Fibre Limited

Mike McGarvey has worked in the information technology industry for 20 years. During this time, Mike has worked in a number of different areas including financial and information services, manufacturing and FMCG, and general IT engineering.

Prior to his appointment at Unison Networks Limited, Mike held senior IT management positions with Fonterra, Reuters UK and Reuters NZ.  In his role at Fonterra, Mike was responsible for the architecture and development of the company’s main enterprise applications. At Reuters, he managed software development resources in Reuters’ global real-time data development unit, and was responsible for all New Zealand field and data technical service; he was also part of the Australasian technical management team.

Mike holds a Master of Business Administration (MBA) from Henley Management College in London.

Nathan Strong
General Manager Business Assurance

Nathan Strong has over fifteen years’ experience in electricity regulation. An economist by trade, Nathan managed Regulatory Affairs for Vector Limited for five years before joining Unison in 2010.

Prior to that, Nathan was a consultant with Charles River Associates where he provided advice on distribution pricing, contractual frameworks for load management, and other electricity industry-related projects. These projects included transmission pricing methodologies, capacity markets and economic regulation of electricity distributors.

Nathan’s background in economics has included reviewing competitiveness in markets. He spent two years with the Commerce Commission where he worked on several merger applications and market power investigations, including the demise of electricity retailer, On Energy, in 2001.

Nathan oversees Unison Networks Limited’s legal, network pricing and regulatory management activities. In addition, he holds or has held a number of industry roles including a Member of the Electricity Authority’s Retail Advisory Group, (two terms from 2011 to 2016) is a current Member of the Security and Reliability Council, Chairs the Electricity Networks Association’s (ENA’s) Regulatory Working Group and is a Member of the ENA’s Distribution Pricing Working Group.

Nathan holds a Bachelor of Commerce and Administration (Hons) from Victoria University in Wellington.

Len Gould
General Manager Commercial

Len Gould has over 35 years of High Voltage Transmission industry experience, having held a number of senior roles with Transpower and its predecessors. He has also provided technical and commercial consulting services to the electricity industry in New Zealand.

Len has a strong technical background, developed through two decades of involvement in network planning activities for both the North and South Islands of New Zealand.

Prior to Unison Networks Limited, Len spent three years in a private consultancy company. Len’s most recent role at Transpower was as the Customer Services Manager, which he held for nine years, and was  responsible for all commercial activities including customer relationship management, new customer connections, transmission services contract management and transmission pricing.

Len was appointed to General Manager of Commercial, in December 2012, where he is responsible for all commercial activities, including customer relationship management, marketing and communication, new customer connections, business development, commercialisation of smart grid products and services and facilities management of Centralines.

Len holds a New Zealand Certificate in Electrical Engineering.

Charles Kaka
Chief Executive Unison Contracting Services Limited

Charles Kaka joined the electricity industry 35 years ago as a trainee lineman.  He has been with the Unison Group since 2006.

Prior to his appointment at Unison, Charles worked for Wairarapa Electricity, Powerco and Top Energy, where he was responsible for the growth and performance of their contracting services.

Charles has also been involved in a number of major initiatives throughout his career, including the building of New Zealand's first wind farm in Martinborough, the development of live work techniques, including the use of interrupter cables and portable generation to facilitate substation and conductor upgrades and the roll out of Ultra-Fast Fibre across Hawke’s Bay, Taupo and Rotorua.

As Chief Executive of Unison Contracting Services Limited, Charles is responsible for ensuring that business provides a cost effective, safe and reliable in-house service to Unison through the provision of services including design, project management, electrical, vegetation and civil works.

Charles holds a Diploma in Business Studies, a Masters in Business Administration, and has a strong interest in Health and Safety.