Before Gehrlicher Solar, there was Enersys Energiesysteme Gehrlicher (founded by Klaus Gehrlicher in 1994) which focused on photovoltaics, solar thermal energy, and energy consulting.
Enersys Energiesysteme Gehrlicher was founded in 1994 by Gehrlicher's CEO, Klaus Gerhlicher. At the time, the company's fields of activities focused on photovoltaics, solar thermal energy and energy consulting. 
