Board of Directors

Mark Darrow_Chairman

Mark Darrow

Following a successful 20 year executive career, Mark has been actively involved in governance roles for over 12 years covering a number of sectors including automotive, agriculture, food and beverage, testing services, manufacturing, education, financial services, infrastructure and investment.  This work has covered listed and private companies, incorporated societies and charitable trusts.
Mark has substantial experience as Chair for sub-committees, particularly Finance, Audit and Risk, supported by his CA qualification, and also experience as Chairman for several businesses including an NZX-listed group.  He holds a Bachelor of Business degree, has done Executive Management training at Ashridge Business School, London, and has further qualifications in Accounting, Business Studies and the Stock and Station Industry.  Among his current directorships, Mark is presently with the Primary ITO, New Zealand’s largest industry training organisation, Balle Bros Group, Motor Trade Association and VTNZ.

Simon Young

Simon has 15 years’ experience in the New Zealand electricity industry from start-up, through lines to generation and retail, working with entities such as Empower, Opunake Hydro, Eco Securities and Alliant Energy.  Holding qualifications in business, horticulture, science and economics from Massey, Auckland University and California, Simon’s earlier career in economic and market development saw him practicing in six industry sectors in a dozen different countries.
Simon’s current and previous directorships include Trustpower, Windflow Technology, Top Energy, Utilise Limited, Carbon One and The Karo Group.  Currently General Manager of Opunake Hydro, Simon enjoys family life, sports – especially basketball, and gardening.



John Rae

John is a Chartered Member of the Institute of Directors and Director or Chairman of a number of NZ companies involved in the infrastructure, energy, waste and investment sectors. He was involved in banking in NZ & London in various treasury & capital market roles for 10 years before returning to NZ in 1991 and undertaking a number of private equity, venture capital & corporate finance transactions in NZ & Australia.  

For 9 years until early 2010 John was Managing Director of Stevenson Group, one of NZ’s largest private companies with more than 600 employees. He was responsible for a major transformation of this almost 100 year old company into a successful, diversified investment group with significant interests in construction materials, quarrying, mining, agriculture, engineering and property.  

In addition to chairing the New Zealand Council for Infrastructure Development, John is a member of the National Infrastructure Advisory Board which provides independent advice to Treasury and the Minister for Infrastructure.




Richard Krogh

Richard has significant energy sector experience having been CEO of New Zealand’s second largest electricity and gas lines business and having held executive positions in New Zealand and Australia for more than 12 years. Richard is presently a director of Port Taranaki Limited, Top Energy Limited, PKW Farms GP Limited, and Energia Limited. He has previously been a director of a number of infrastructure businesses in New Zealand, Australia, the United States and the United Kingdom. Richard has also served on a number of industry organisation boards and was a former chair of the Electricity Networks Association.

Richard is an electrical engineer and is a member of the Institute of Professional Engineers New Zealand and the New Zealand Institute of Directors.



Roger Sutton

Currently a director of Network Tasman, Independent Lines Services, the Church Property Trust and an advisor to the Wells Group, Roger brings a strong background in infrastructure and the electricity sector to TLC’s board.

Formerly Chief Executive of Orion New Zealand Ltd and of the Canterbury Earthquake Recovery Authority (CERA), Roger’s governance roles, include the Energy Efficiency and Conservation Authority (EECA), Connetics, Energy Developments and Energetics.

He is a Fellow of the Institute of Professional Engineers (IPENZ) and a Member of the New Zealand Institute of Directors.  Married with three sons Roger enjoys cycling, running, skiing and the odd stint in the kitchen.




Tim Densem

Tim has wide experience in gas and electricity generation, metering, network and training fields both in New Zealand and overseas. A former board member and Chief Executive Officer of the Electricity Supply Industry Training Organisation (ESITO), Tim is currently a director of the Southwest Consulting Group and a trustee of Waikato's Maungatautari Ecological Island. He was previously a director of Damwatch.

Tim is married with three sons and involved with several educational and not-for-profit organisations. He is a Fellow of IPENZ and a member of the New Zealand Institute of Directors. In his spare time Tim can be found skiing, cycling or fishing.