Since 2010 he has been a Research Associate at the Institute for Integrated Economic Research (IIER), where he works on spatial supply and demand modelling of resource flows in city-regions within disciplines called urban metabolism and energy economics. In addition he analyses the impacts of resource cost changes on developed and developing economies.
He is working towards a PhD degree at Imperial College London's Centre for Environmental Policy, for which since 2012 he has worked on improving the accuracy of electricity system simulations. Rembrandt holds an MSc in Development Economics and Management, and a BSc in Economics, both from Wageningen University, the Netherlands.
He was previously a writer and editor for www.theoildrum.com which until its closure in 2013 was one of the best read energy blogs in existence with more than a million monthly visitors. From 2005 to 2010 he was President of the Association for the Study of Peak Oil & Gas Netherlands, a non-profit focused on research and political outreach related to fossil fuel depletion and alternative energy sources.