On July1, 2015 Tijmen Keesmaat joined the team as a Green Trust shareholder. He forms, together with current owners Klaas Guldie and Jeroen Boerenkamps, Green Trust management. Tijmen has been active in wind energy since 2000; the first seven years at WEOM, where he was responsible for the development of the French wind portfolio, then two years at Electrawinds. Since 2009 Tijmen has worked on a standalone basis under the name LEAF renewable energy for various clients. Since May 2013 he has been director of Windpark Krammer BV, a project of the cooperatives Zeeuwind and Delta Wind. He is also a board member of the Solar World Cinema Foundation. Tijmen is responsible for the advisory activities related to project development within Green Trust.