Who we are

Senior leadership

Nan Li

Nan Li Electrical Engineer

Nan leads ESP’s system integration, ensuring that our monitoring systems work seamlessly for every client, every time. Nan is also responsible for the extensive data validation and verification process that each system undergoes. This means our clients can be absolutely certain that the data they are looking at is accurate and any action that is taken as a result, savings can be validated and proved to the International standards our clients require and expect.

Nan’s skills are invaluable, he is able to analyse and prioritise issues, applies a procedural fault finding practice to problems and simply makes things work.

With Degrees in Bachelor of Engineering (Honours), NZ Diploma in Business, English for Tertiary Studies – MIT, Auckland

Awards include Microchip®’s Australia/New Zealand University Prize - 2006

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.