The Industrial Revolution, which took place from the 18th to 19th centuries, was a period that fundamentally changes the way we are living. The development of the steam engine played a central role to make it possible to increase the volume of manufactured goods. As we learned to use energy from for example coal, the need for new energy materials have increased. Today it is not just a question of how to convert heat energy from fossil fuels to for example electricity, it is also how to take advantages of the waste energy or how to produce energy in a more sustainable way.
... that the energy that is lost primarily as waste heat accounts for more than 50% of the energy production? 
... that the goal is that 30% of the energy used in Denmark in 2020 will be produced from renewable energy sources?