Dolf Gielen

The World Bank
Hydrogen Lead and Senior Energy Economist


Dolf Gielen is Hydrogen Lead and Senior Energy Economist working in the World Bank Energy Sector Management Assistance Program (ESMAP). He manages the Hydrogen for Development Program (H4D), leads the green hydrogen window, and contributes to hydrogen project financing in a rage of countries including India and Namibia. Prior to joining the World Bank, Dolf worked for IEA, IRENA and UNIDO. He has 30 years of experience in energy and climate policy, with emphasis on innovation, technology, and economics. Dolf has advised many senior public and private sector players in various settings including G7, G20, UNFCCC and WEF. He was part of the management team that established IRENA as a new intergovernmental agency.

Dolf has a PhD from Delft University of Technology in the Netherlands in energy and materials systems modeling. He studied chemical engineering and environmental sciences. Dolf has written more than 200 peer reviewed scientific papers, books, and reports.