The solar cell consists of a positive and a negative silicon-layer. By solar irradiation the current of electrons is started to run.

Summer 2005: working on a 40 kWp-installation in Vazerol, Switzerland

Apprentices of Swisscom in front of their 8.5 kWp-plant on the roof of Swisscom-building in Zürich, Switzerland (April 2005)

Recycling bins at the X Games.

Jason Ellis, top skateboarder, sports a Greenpeace t-shirt and suitable peace sign at the X Games.

Jen O’Brien, professional skateboarder and along with husband Bob Burnquist, founding members of the Action Sports Environmental Coalition (ASEC), the group that is responsible for greening the X Games.

Andy Macdonald, is a champion skateboarder and X Games bronze medallist - "If I can set a good example by getting the word out about being environmentally conscious, I'm going to do it."

View of the main arena and wooden ramps. All wood at the X Games is Forest Stewardship Council™ (FSC®) certified wood. This means it comes from environmentally and socially responsible managed forests.

Bob Burnquist, one of the top skateboarders in the world and also an organic farmer and grass roots environmentalist.