Koolen Industries Solar (previously Energy Experience Group) consists of a group of companies within the solar energy sector. Koolen Industries Solar installs about 75.000 solar panels per year on consumer homes and company buildings. At the moment, Koolen Industries Solar consists of six companies: BonGo Solar, NovaVolt, BeSolar, BonGo Solar Projects, Duurzaam Besparen and Koolen Installation Services. bongosolar.nl »