Calpak A.E. is the first Greek company since 1976 that deals in solar water heaters and solar panels. Calpak had an unrivalled commercial success in the late 70s, at a time when the potential for solar thermal application was not fully appreciated. By 1985 Calpak had already installed more than 200,000 solar thermal systems in the Greek market and held a domestic market share of 55%. With over 35 years of experience, Calpak is in the forefront for the production of innovative solar thermal equipment at an unparalleled price to quality ratio.