David Hart is a Partner at ERM: Environmental Resources Management. He possess expertise in renewable energy, energy, energy policy, sustainable energy, fuel cells and 30 more skills. He is proficient in German, Japanese and French. Colleagues describe him as "David has unique in-depth technical and commercial expertise in hydrogen and fuel cells with the result that he is the 'go to' person for everything from technical due diligence to delivering insightful technoloy and market reviews." and "David and his colleagues in E4tech have over many years provided deep expert insights in the area of alternative energy and renewables in particular to aid my work on strategy and technology developments. This has always been done in a highly collaborative fashion."