Chris co-founded OnGen in 2014.

Chris is a chartered accountant who trained at KPMG Peat Marwick before moving to Deloitte (Bermuda), then BDO Stoy Hayward, and then into senior finance roles at a range of technology companies (mobile telephony and interactive TV) from 2000.

Chris’ experience in the energy sector started in 2006 when he became a founding director and shareholder at Spark Energy Ltd (Sunday Times Fast Track 2014 – 23rd).

After leaving Spark Energy, Chris started his own consultancy, Clearer Energy Ltd, advising a wide range of organisations on entering the UK energy supply market, including listed organisations, international energy supply companies, local authorities, renewable generators, and housing associations.

Clearer Energy emphasised helping community energy schemes use local energy generation capacity from a range of technologies, from wind to solar PV, to reduce fuel poverty.

Andrew is a co-founder and Director of OnGen.

Andrew is an experienced practitioner with over 25 years working in the environment and energy consulting sector.

He has held several senior roles at large corporate consultancy practices including ERM Partners, WSP, ITPEnergised and SLR Consulting.

Andrew specialises in advising blue-chip companies on implementing sustainable strategies into their business, understanding the impacts of climate change, and highlighting the economic opportunities delivered through resource and energy efficiency.

His experience includes significant work in Russia, Africa, Asia, and mainland Europe, across a wide range of sectors, including oil and gas, food and drink, transport, construction and infrastructure, energy generation, manufacturing, and finance.

Over the past 5 years, Andrew has worked closely with the renewable energy industry, providing feasibility assessments, development support and technical due diligence on a range of technologies and developments. Through this work, it became clear that tools like OnEfficiency and OnGen Expert could help organisations looking to transition to net zero and reduce energy costs but lacking the technical know-how.

Mark is an independent strategy advisor to multiple organisations focused on combining consumers, technology and business models to deliver an accelerated energy transition that everyone benefits from.

Following a thirty-year career in the energy sector working across twenty countries, Mark is passionate about turning distributed renewable energy technologies adopted by consumers of all sizes into their enduring cost savings, enhanced sustainability and reward for contributing to our energy system.

Mark’s experience spans global grid and market development, scaling technology start-ups, buy and sell-side investment processes and consumer energy proposition strategies.  To inform his work with practical insights he adopts the technologies he advocates for.  His home is a live case study evolving over time across technologies installed including Airsource Heatpump, solar PV, battery storage, smart thermostat, smart plugs, EV and also Vehicle-To-Home (V2H) plus dozens of software apps.  He advises companies creating new platforms for energy consumers bringing the experiences and interfaces at home to inform their propositions.

Mark’s experience includes National Grid, Logica, Utiligroup, Silver Spring Networks, ESG and most recently PA Consulting before going independent as Coylenergy Ltd to work intimately across a small portfolio of companies making a tangible contribution to the energy transition from 2024.  He has worked in UK, across Europe, USA, Australia, Japan, China, South Africa, Brazil and many others in contributing to both a UK and global energy transition.