The oversized use of fossil fuels has been given much attention in recent years. It hasbeen known for a long time already that compared to their renewal, fossil energyresources are consumed at too high of a rate. The Earth Overshoot Day, i.e. the daywhen the renewable energy resources of the world have been used up for that particularyear, was reached in 2010 on the 21st August. (Ministry of the Environment, 2010). Theoversized energy consumption has caused discussion about the climate change and thisdiscussion brings about stress for the biggest consumer of fossil fuels, the industry.