Jeffrey Beyer
Founder (emeritus)
Mark Pepper

Mark is an accomplished management professional with significant project and commercial experience. He has considerable knowledge of offshore wind and marine renewable technologies, and engineering. 

This has been founded on a strong background within the construction industry, often managing multi-disciplined teams and stakeholders through all phases of a project.


Originally working in Industrial Design, Mark has developed wide-ranging experience in a number of industry sectors utilising strong team management and leadership skills to effectively motivate and communicate at all levels. He is regularly engaged as the lead consultant, taking a project through from feasibility to handover including coordinating specialist consultants and contractors and negotiating statutory approvals and consents. 


He has the experience and the ability to establish and implement client requirements, develop effective proposals, identify specialist requirements and grasp technical issues to progress a proposal through to successful implementation.

He has substantial experience in UK renewable energy markets, especially onshore and offshore wind, including setting up government incubators and innovation centres. He also has considerable international experience, in the US and Canada, South America, Africa and Asia, in areas including energy efficiency, renewables, waste-to-energy, and energy systems.


His diverse experience allows him to integrate a disparate set of approaches to generate creative solutions. He grounds his engaging communications on a bedrock of evidence and structured problem solving, working comprehensively whilst getting the details right. 


Jeffrey holds an MSc Environmental Change and Management from Oxford University and a combined Honours in Economics and Psychology from Carleton University, in Canada.

Jeffrey is a clean growth expert who provides strategic advice to top companies and governments around the world. He has extensive experience in policy and programme design and implementation, public private partnerships, technology pathways and strategies for cementing behavioural change.

The Team

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Yuyun Ismawati
Special Projects

Yuyun a specialist in urban environmental management issues, climate change, environmental health and sanitation, and toxics issues. She uses participatory approaches to develop policy strategy for sustainable development and systemic change.

Yuyun is a co-founder and Senior Advisor of BaliFokus Foundation, a Bali-based environmental NGO and the co-founder of the Indonesia Toxics-Free Network. At the global level, she is affiliated with the International Persistent Organic Pollutants Elimination Network and serves as the lead for Artisanal and Small-scale Gold Mining. She also works with the Toxics-Free Future Network. 

She holds an Environmental Engineering Bachelor degree from ITB Indonesia, MSc in Environmental Change and Management from the University of Oxford (2010-2011) and is a PhD candidate in Medical Research - International Health at the Medical Centre of the Ludwig-Maximilians-Universität München 2015.

Charles Yates
Finance and Regulation

Charles has 28 years’ experience advising companies, investors and the public sector in relation to regulation of the energy, water and transport sectors. He is a specialist in regulated utilities with a passion for policy and transactions which make sense and deliver value. 

As an idependent consultant, he has advised banks, Ofwat, and BAE, as well as Ofgem, DECC, E.ON, the Green Investment Bank, Triodos and The Crown Estate.


Charles previously worked for Grant Thornton and before that spent thirteen years at Nomura investment bank, including six years as a member of the Principal Finance Group, which acquired businesses with a total value of $21 billion. 


Charles was a member of DECC’s Contracts for Difference Expert Group and is now a member of the Offshore Wind Programme Board.  He has a track record of working with the boards of regulators and utilities, and senior management at central government departments.   


Charles has a B.Sc. in Economics & Accountancy from the University of Bristol and an M.Phil. in Economics from Oxford University.  He is a Fellow of the Royal Society for the Encouragement of Arts, Manufactures and Commerce.

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