Who we are

Senior leadership

Olivia Winn

Olivia Winn Energy Analyst

Olivia brings to our clients an impressive array of educational experience with Coursework in Energy Engineering: Introduction to Sustainable Energy Systems, International Energy Systems, Process Modelling, Process Simulation, Process Optimization, Sustainable Energy Systems - Advanced Studies, and Sustainable Energy Systems - Project. Mathematics and Computer Science: Numerical Methods with MATLAB, Applied Matrix Analysis, and Programming, Mathematical Modelling and Computation and Multivariate Calculus and Differential Equations.

With degrees in; Master of Science, Energy Engineering (Sustainable Energy Systems) – Mälardalen University, Bachelor of Engineering (Hons), Mechanical Engineering, 2nd Class, 1st Division Honours – University of Canterbury.

Olivia is able to convert this knowledge into real world solutions for our clients through converting the hundreds of millions of data points ESP collects into information and finally knowledge that our clients are then able to action. This action results in real savings. Olivia’s work has helped ESP’s NZ clients achieve energy savings in excess of $23 million dollars, 171 Giga Watt Hours of energy or 22,154,591 kg CO2-e avoided.

Jeremy Allen

Sales Engineer and Founder

Whilst at one of NZ's largest energy retailers Jeremy recognised large users of energy wanted to better manage their utility costs. More >

Tim Mayson

Operations Manager

Tim has a Mechanical Engineering Degree from AUT and worked at Compac Industries for 10 years rising from Engineer to Operations Manager and a More >

Martin Gummer

Business Development Manager

Martin comes to ESP with over 38 years of private and public sector experience. More >

Leigh Featherstone

Business Development Manager

Senior manager with extensive skills in building and managing sound relationships with people that deliver targets and goals. More >

Trevor Nash

Consulting Services Manager EMANZ accredited EnergyMasters Auditor

Trevor has over 25 years of energy sector experience, initially with renewable energy and later in energy management. More >

Hong Lee

Building Optimisation Manager

Hong brings to ESP 14 years of engineering experience, with 8 years specific experience in the configuring, commissioning, servicing, maintenance and More >

Olivia Winn

Energy Analyst

Olivia brings to our clients an impressive array of educational experience with Coursework in Energy Engineering: Introduction to Sustainable Energy More >

Mannat Choksi

Energy Engineer

Mannat specialises in identifying and implementing energy saving measures for commercial buildings, SMEs, and large industrial sites. More >

Michael (Jun) Xing

Data Scientist

Data scientists are a new breed of analytical data expert who have the technical skills to solve complex problems – and the curiosity to explore what More >

Nan Li

Electrical Engineer

Nan leads ESP’s system integration, ensuring that our monitoring systems work seamlessly for every client, every time. More >

Beryl Wang

Data Analyst

Beryl is in charge of our monthly reporting, tariff negotiations and assists in the day to day data analysis of our client’s data. More >

Board of Directors

Jeremy Allen is the majority shareholder of ESP which he founded in 2001. He has extensive experience in the energy industry with particular understanding of the value of data in business decisions and uses this knowledge to create value for clients.

D'Arcy Quinn is a shareholder and Chairman of ESP. He is also Chair of Biophive Ltd and Lowe Products Ltd, a director of Superior Farm Pet Provisions (USA), Cuthbert Stewart Ltd, Rothford International Ltd and a past director of Interlock Group.

Jim Sherwin is a shareholder of ESP. He Chaired the National Property Trust Board from 2010 until it was corporatised in 2011 and is currently a Trustee of Expressions Art and Entertainment Trust, Chairman of Nees Hardware (Mitre 10 Mega) and Building Supplies Ltd and Preston Corp Ltd, a Director of Cuthbert Stewart Ltd and past Chair of Te Omanga Hospice.

Ross Darrah My simple mantra in business which has always proven to be true: "Deliver believable results in 90 days".

In my career, I have pioneered the development of the procurement discipline in New Zealand and continue to lead major procurement efforts with key organisations.

I rely on my ability to identify opportunities and areas that can be simplified in every aspect of a business.