25 years SOLID: the company anniversary for a quarter of a century


Geschaeftsfuehrung SOLID

25 years ago, on the 22nd of May 1992, 5 founder, Christian Holter and Franz Radovic among them,   founded the company S.O.L.I.D. – Gesellschaft für Solarinstallation und Design mbH. Today – 25 years later – the team reviews a large number of milestone projects and business achievements.

Beginning with adventurous hands-on-home-constructors, plants´ sizes enlarged over the years to become ten thousands of square meters of area. At first, projects were located close to the company, but soon SOLID initiated projects around the world. As of today, SOLID´s solar thermal large scale plants harvest sunny energy in countries such as China, Singapore, USA, Portugal, or the latest plant in Nicaragua.

Within the last 25 years, SOLID increased its number of employees from a 5-men-show to a company with more than 30 employees. Additionally, subsidiaries were founded in regions such as California, Singapore, or Germany. Corporate activities today are also based on numerous networks and partnerships globally, which are key to innovative projects.
Highlights over the years were moonshot projects such as the first plant for solar cooling, many more “largest solar plant in …” as well as increasing project options for district heating networks. SOLID is now home to a number of experts in the field of solar thermal systems. These experts have been sharing their know-how at well-established scientific and industry events around the world over the past 25 years. Projects of SOLID prove that the solar thermal large scale industry provides a promising market, with SOLID being an essential part of it for decades.



We are happy to announce the 25th anniversary of SOLID. Festivities are currently set up for autumn 2017. Company partners will share their 25 years of experience and sum up on the last quarter of a century. Details will be provided soon…