Plastics and rubber stand for endless new applications with the power to inspire and fascinate. Most recently, the fact that plastics are exceptionally energy-efficient has been assuming an ever-more prominent role. Plastics are the key to resource-conserving technologies characterised by low materials consumption. The use of plastics brings major benefits in, for example, heat insulation of buildings, as well as mobility through lightweight design in cars, buses, trains and aircraft. Plastics are indispensable for the expansion of renewable energies. The range of applications for plastics in modern energy technology is vast, stretching from wind turbine rotor blades, which can only be produced using fibre-composites, to membranes in fuel cells, and to photovoltaic cells, which will be printed on a grand scale on membranes with the help of plastics technology. Numerous examples of energy-saving applications and resource-conserving production processes will be on show at K 2010, the world’s largest trade fair for plastics and rubber, in Düsseldorf from 27 October to 3 November 2010.