Traditional greenhouse production is to a great extent based on the use of fossil fuels, a use which can be regarded as unsustainable in the long run and an environmental threat. There is therefore a need to consider, develop and try out alternative sources of energy for greenhouse use. Likewise modern greenhouse production is based on systems which are not in accordance with a sustainable development. A great effort has been done, though, in the area of plant protection to implement biological methods. But there still a need to consider and develop organic production systems.