Helping you make sense of the energy and water sectors

Who we are

Gareth Miller


Gareth Miller is Cornwall Insight’s Chief Executive Officer. He has worked in the energy sector in a variety of Director level client, transaction, investment, project and leadership roles, first as head of energy project finance for a global bank, then as a senior policy advisor to the UK government focusing on making policy investable, as a consultant to a variety of energy sector actors, and finally as the leader for a rapidly expanding energy analysis, research and consulting business.

At Cornwall Insight Gareth:

  • led the evolution and expansion of the Cornwall Insight business in GB, and into Ireland and Australia
  • has also advised numerous clients across the energy sector, including international players in the market, investors, and governments and is thought of as one of the leading voices in the industry on key market developments.

Gareth has extensive knowledge and experience in the commercial landscape and investment aspects of the energy industry. His skills include strategy formation and operationalisation, commercial due diligence, lead negotiation, investment appraisal, energy policy development and evaluation. As well as extensive work in the UK, he has international experience in the Irish, Italian and South African energy markets.


Who we work for