Because of their expertise in the renewable energy field, agricultural engineers and company founders Heiner Gärtner and Ove Petersen have reinterpreted the meaning of farming: using the inexhaustible forces of natural energy sources is their objective, simply energy their motto.
GP Joule supports its customers throughout all phases of a project, from the original idea to its realisation, and also looks after completed plants by providing professional operational management once they are up and running.
Besides the business fields of solar, wind and biomass, with our future strategies division we have established a knowledge pool that brings together the know-how from all our specialist departments and allows us to create comprehensive energy solutions. Investors see GP JOULE as a competent partner that offers them attractive, bespoke investment opportunities.
16.05.2012 - Stability through solar energy
05.04.2012 - Green to go
29.10.2011 - Solarpark Ammerland



From individual wind turbines to large wind farms – we ensure that tomorrow’s electricity supply doesn’t run out of breath.

Biogas plants generate environmentally friendly, economical electricity and heat from renewable sources.
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