Helping clients make smarter sustainable investment decisions
Helping clients make smarter sustainable investment decisions

Guy Turner.  Founder, CEO. Guy has 30 years’ experience in research and strategy in sustainability and the energy transition.  He spent his first 15 years in consulting advising companies and governments on a wide range of sustainability issues.  In 2006 he joined New Energy Finance (NEF) to create the carbon market research business (New Carbon Finance) which was integrated into NEF.  After the sale to Bloomberg Guy continued as Head of Commodities and Chief Economist of BNEF, building out power and gas market analysis and renewables economics.  


In 2017 Guy joined BP Economics where he was responsible for global oil supply analysis and worked on BP's Energy Outlook.  From 2018 to 2020  Guy was the Strategy and Analysis Manager at EDF Renewables, overseeing market and financial analysis to support investments in offshore and onshore wind, solar, battery storage and hydrogen.  


Guy has undergraduate degrees in Mechnical Engineering and Economics, a Masters in Environnmental Technology and am a graduate of London Business School Corporate Finance Evening Programme.

Elyas Helmke. Consultant.  Elyas completed his MSc in Climate Change, Management and Finance at Imperial College Business School in August 2020. Prior to this, he completed a BSc in Geography and Economics at the LSE, graduating in summer 2019, with a focus on environmental and trade economics, microeconomics and econometrics. His academic research, including efficiency of carbon pricing mechanisms, private sector responses and investigation of negative emission technologies’ abatement potential, has been predominantly quantitative in nature, making extensive use of statistical methods, programming and data science.

Alongside his studies, Elyas has practically pursued his passion for sustainable finance and climate change solutions at a Berlin-based, sustainable investment family-office, analysing cleantech growth equity investments, and more recently as an external consultant for ERM, assessing the financial risks and opportunities from climate change to the mining and extractives industry.

Teki Anna Tetteh-Wright. Consultant.  Teki completed her MSc in Climate Change, Management and Finance (distinction) from Imperial College Business School in summer 2020 and has since specialised in carbon offset markets. Teki recently completed a four-month internship with the University of Cambridge Digital Innovation Centre researching the demand for carbon offsets in a broad range of organisations and sectors. Following this, Teki worked as an external consultant for the geospatial data analysis company Rezatec, providing voluntary carbon market consultancy services.  


Prior to completing her MSc at Imperial College Teki graduated with a first-class degree in BSc Geography from UCL. During her degree Teki studied abroad for a year at Simon Fraser University, Canada, where she studied a combination of earth sciences and geography modules.

Harry GrocottAssociate.  Harry recently completed his MSc Climate Change, Management & Finance at Imperial College Business School.  Prior to completing his MSc Harry worked in wealth management as a Senior Paraplanner within the St. James’s Place partnership. The role covered development and execution of the private client proposition, including overseas investment transfers and trust & estate planning. Harry has a Diploma in Regulated Financial Planning from CII.


Harry is also founder of Treeconomy, a climate change impact business which uses drone-based LiDAR technology to bring trust and rigour to the voluntary carbon offset market. More recently Harry worked as an external consultant for ERM with a focus on climate change (TCFD) risk, specifically in the mining sector.

Dr Alexander Koch. Associate. Alex leads Trove Research's work on modelling nature based solutions in the voluntary carbon market.  Alex is currently a postdoctoral fellow at the University of Hong Kong where he studies the influence of human-induced changes of the land surface on the Earth System.  His main area of work is the effects of large-scale forest regrowth on past, present, and future climate and carbon cycle.


Alexander gained a PhD at University College London at the Department of Geography. Prior to UCL Alex worked at the UK Centre of Fisheries and Aquaculture Science after obtaining an MSc from King’s College London and a BSc in Physical Geography from the Philipps-University, Marburg, Germany.  Alexander regularly presents at major conferences and formed collaborations with the industry sector, such as WillisRe and AIR Worldwide. He gained familiarity with carbon trading and offsetting schemes through various work placements early in his career.  Dr Koch’s previous research has been covered by several international news outlets, including the BBC, Guardian, die Süddeutsche Zeitung, and CNN.

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