International Solar (Kieszon), founded in 2008 by Frank Heijckmann and Gideon Overwater, is the largest solar power developer in the Netherlands. The company develops, invests in and operates mainly large commercial solar projects on roofs and offers total customer care, both financially and technically. Greenchoice, founded in 2001 in Rotterdam, is an energy supplier that offers 100% green energy to more than 400.000 residential and commercial customers. All energy is generated from wind-, water-, biomass- and solar power. – Greenchoice has acquired International Solar (Kieszon), the largest solar power developer in the Netherlands, from its founders. For Greenchoice, the acquisition is an important step forwards in its ambitions around solar power. Kieszon, of which Greenchoice was a co-shareholder already, has built a large solar power portfolio over the last years.