Our 2020 speakers are:


Sean Weaver

CEO & Founder

Executive Director and founder of Ekos - specializing in indigenous forest carbon project/programme development (supply), and carbon footprint measurement, reduction, offsetting and certification services (demand). Includes consulting to: NZ businesses, central and local government in NZ, African Development Bank, World Bank, Pacific Island governments.

Richard Briggs

Manager Transport Portfolio

The transport sector provides the single largest opportunity to improve New Zealand’s energy productivity and reduce energy related emissions. Richard and his team partners with the industry to bring innovation to the transport sector to accelerate the uptake of low emission vehicles through investment in the Low Emission Vehicle Contestable Fund.

Ronja Lidenhammar

Technical Account Manager
Toitū Envirocare

Ronja provides certification preparation and management support to our members, focusing on strengthening business processes and adding value.

Her experience ranges from ensuring environmental compliance to sustainable business management consulting for a range of industries. When she’s out of the office, you are likely to find her out hiking, horse riding, digging in her veggie garden or travelling.

Mike Hopkins

Chief Executive Officer
Carbon and Energy Professionals

Mike has a PhD in Finance and MBA and has worked in consulting, educational and marketing roles in Auckland, Bristol, London and Sydney. He is committed to helping members raise their abilities and to helping New Zealand businesses access expertise and knowledge in their pursuit of efficiency and lowering emissions. Outside the office, Mike is a reluctant DIYer, hedge trimmer and lawn mower with a soft spot for native wildlife.

Lara Phillip

Senior Manager Sustainability Solutions

As Senior Manager Sustainability Solutions at Fonterra, Lara’s role is focused on creating shared value by developing solutions and tools to meet customer and consumer needs around sustainability.  Over the past 14 years Lara has worked in climate policy, sustainability strategy, and shared value across the agriculture, insurance and advisory sectors, both in New Zealand and Australia.

James Carberry

Head of Sustainable Opportunities
Simply Energy

James leads the Sustainable Opportunities team at Simply Energy, responsible for supporting our commercial and industrial customers to transition to a low carbon future. James has a mechanical engineering background and prior to joining Simply was working as an Energy Consultant in the UK. His current focus at Simply includes growing our Demand Flexibility offering and promoting emissions reduction through electrification and energy efficiency projects.

Camilla Riddiford

Sustainability Solutions Project Manager

Camilla’s role is Project Manager Sustainability Solutions. Her role focusses on developing new solutions and tools and bringing to market for customers. Camilla has been with Fonterra for 6 years and has worked in technical and operational roles across manufacturing, supply chain and sustainability.

Sarah Williams

Innovation & Improvement Lead
Simply Energy

Sarah Williams is Simply Energy’s Innovation and Improvement Lead. She spends her days working collaboratively with teams tackling tricky problems and grasping out of reach opportunities such as climate change. Incorporating diverse perspectives and understanding customer needs, she believes, is where the best ideas and solutions are found. Using innovative approaches and collaborative workshops Sarah works with customers sharing experiences, co-designing solutions, and creating innovative pathways to reduce New Zealand’s carbon emissions.

Andrew Eagles

Chief Executive
New Zealand Green Building Council

Andrew is a qualified economist with more than fourteen years’ experience in the built environment. Working for consultancies, associations, government and built environment charities, he has a wealth of knowledge in housing, market mechanism, advocacy and the construction supply chain.

John Goodwin

Operations Manager
Nature’s Flame

John Goodwin is responsible for Nature’s Flames operations and oversees the plant’s feedstock, pellet production and finished product logistics.


Mike Burrell

Executive Director
Sustainable Business Council

Mike joined SBC in January 2020. His previous role was New Zealand’s High Commissioner to South Africa. Before that he was Director for Sustainable Economic Development at the Ministry of Foreign Affairs and Trade and the founding CEO of Aquaculture New Zealand.

He holds degrees from the London School of Economics and the University of Canterbury. Mike is based in Wellington.

Craig Stephenson

Commercial Development Manager
Contact Energy

Craig Stephenson leads Contact’s drive to develop alternative (non-electricity generation) uses for geothermal resources – including the direct use of geothermal energy in industry, commercial activities and minerals extraction.

Dr Janet Stephenson

Director - Centre for Sustainability
University of Otago

Janet Stephenson is passionate about collaborative, interdisciplinary research. Her research interests include indigenous resource management; the interconnections between people and their local environments; and the role of individuals and organisations in the transition to a sustainable future.
Janet has been Director of the Centre for Sustainability since February 2011.

Rob Murray-Leach

Head of Policy
Energy Efficiency Council

Rob has an extensive background in climate change, energy, transport and sustainability, as an author of the Garnaut Climate Change Review and senior policy expert in the South Australian Government. His academic background from Oxford and Adelaide focussed on behaviour and sustainability, and he has contributed to a number of texts in this field.

Kiri Hannifin

General Manager Corporate Affairs, Quality, Safety and Sustainability

Kiri Hannifin is the General Manager Corporate Affairs, Quality, Safety and Sustainability for Countdown Supermarkets. 

In her role she leads health and safety, quality, food safety, sustainability, media, public relations, government relations, stakeholder engagement, community investment and corporate social responsibility.

She has extensive communication and corporate affairs experience from within the public, private and not for profit sectors in New Zealand and abroad.

Dr Ellie Khaghani

Energy Lead/Tutor for Diploma in Engineering – Mechanical
Western Institute of Technology at Taranaki (WITT)

Ellie joined Western Institute of Technology at Taranaki (WITT) in 2019. She holds a PhD degree in Chemical and Process Engineering with research interest in “microwave pyrolysis of waste plastic for production of fuel”. She also holds a master degree in Petroleum Engineering and previously worked as a reservoir and process engineer in oil and gas industry. She currently teaches engineering courses at WITT and acts as energy lead.

Brett Tomkins

Lead Partner - Sustainability

Customers have differing needs and issues. My experience is people value having someone to listen, understand and provide positive impetus for change. Over the years, I’ve approached each client and their situation as if it’s my own business.  This has provided me with the ability to see things from their point of view, and empathise with whatever is going on at the time.  My passion is to help others stay relevant in a changing world, and make a difference in everything they do.

Maria Ioannou


Maria Ioannou has worked within the public, private and tertiary sectors in New Zealand, the UK and Europe, and is currently freelance. Previous to this, Maria led the Dunedin City Council’s policy team where she established the climate change adaptation and mitigation programme for the city, focused on taking things from talk and vision to practical reality including commissioning a carbon assessment of Dunedin’s draft 10 year plan – a first in the country.

Alana Lampitt

Senior Associate (Environmental, Planning and Resource Management)
Chapman Tripp

Alana advises public and commercial clients across electricity generation, utilities, industrial processes, mining, oil and gas and emissions trading sectors.

Alana specialises in resource management and environmental aspects of large-scale energy and infrastructure projects, property development, commercial contracts and due diligence investigations. Her extensive experience assisting clients on environmental and planning liabilities means she is often called upon to act for clients with large international commercial transactions and contracts.

Dr Rod Carr

Climate Change Commission

Dr Carr has extensive experience in both public and private sector governance and leadership. He served as Chair and non-executive director of the Reserve Bank of New Zealand and served as Deputy Governor and for a time Acting Governor of the Bank. Dr Carr was the founding Chair of the National Infrastructure Advisory Board and for over a decade was a non-executive director of the Canterbury Employers’ Chamber of Commerce.

Nicola Swan

Senior Associate (Litigation and Dispute Resolution)
Chapman Tripp

Nicola has particular expertise in international and New Zealand-based commercial arbitration and litigation, public international law, public law and climate risk.

Recognised by clients as having excellent rapport in developing effective case and advocacy strategy, she has broad experience before international arbitral tribunals and in domestic courts.

Prior to returning to Wellington in 2019, Nicola practised in London for seven years with a major US law firm, Debevoise & Plimpton LLP.

Alex McDonald

Head of Sustainable Business & Communications for Australia and New Zealand

Andrew Tan

President & CEO
Chiyoda Oceania

Andrew is an established senior executive with more than twenty years of experience ranging from various leadership  capacities spanning project engineering, operations and business development across Oil & Gas, Mining, Pharmaceutical and Semiconductor industries.

Dan Kahn

Chief Technology Officer and Co-founder
Hiringa Energy

Dan is an experienced mechanical engineer with a background in hydrogen product development and industrial water treatment.

As an expert in controls, systems and automation, Dan has designed, installed and commissioned 700 bar H2 filling stations, and automated fuel-cell manufacturing equipment.

Tom Kelly

Environmental Initiatives Manager
The Warehouse Group

Tom is the Environmental Initiatives Manager for The Warehouse Group. In his role Tom is responsible for delivering the business’ ambitious 2030 emission reduction targets, establishing a robust and transparent emissions reporting framework, engaging with internal and external stakeholders on environmental policy and driving The Group’s ongoing carboNZero certification. Tom has developed The Group’s first Active Emissions Reduction Programme – a multi-year environmental performance improvement programme – responsible for integrated and portfolio-wide action on emissions reduction.

Stefan Rüegg

Executive Director

Stefan is a change agent whose work focuses on catalysing positive social and environmental impact in business. He started his career in a Corporate Sustainability role with an international bank before he moved into sustainability consulting with long stints at PwC and AccountAbility.

Toby Stevenson

Consulting Director
Sapere Research Group

Toby is a Consulting Director with international economics consulting firm Sapere Research Group. His expert area is electricity trading and risk management and he established himself as an independent energy consultant in 2004. Toby was the General Manager Electricity Trading at Contact Energy from its inception in 1996 to 2003 and has held a number of industry governance positions.

Anna Shaw

Manager Business Portfolio, Investment and Engagement

EECA via Anna partners with large energy user clients to deliver continuous improvements in their energy and emissions productivity.  Anna also manages the Government Investment in Decarbonising Industry (or “GIDI”) Fund, within the Business Portfolio at EECA.