The Edison trademark, which was adopted in 2003, was born from a suggestion that is as simple as it is rich: the roundness of the Earth, the sun and, ideally, the sky. These elements, which are interpreted as energy's original elements, are represented in a composition of arcs of circles.

The visual impact of the trademark is of a dynamic environment which in the green finds its integration with the primary colours of blue and yellow. The proposition reminds one of nature, tranquility and balance; but also of rebirth and fertility.