Martin Bloemendal is a specialist in soil energy and works at KWR on various researches on soil energy and other types of water-generated thermal energy. Martin always sees the system as a whole, which means not only the source of heat or cooling capacity, but also consumers and the necessary equipment. That is why he has such extensive knowledge of related and complementary techniques. He is not an out and out engineer; he also works on organisational and policy-based issues concerning sustainable heat and cold and stands his ground. Martin has a clear vision for the use of subsoil with soil energy. He tries to spread and structure this vision in various ways. For example, he also works Delft University of Technology on his research into optimal and sustainable use of the soil with soil energy systems. He is also on the board of the sector association BodemenergieNL. In that position, Martin is involved in the legal interests and the knowledge agenda surrounding soil energy.