Minderung der CO2-Emissionen durch effizienten Energieeinsatz im Unterglasgartenbau

Abstract

Depending on the technology used, the operational system and the crop being grown, around 500000 kWh heating energy per year is required for a 1000 m2 ground area greenhouse. Reducing heat losses from such buildings is very important for increasing energy efficiency through less energy costs and carbon dioxide emissions. The installation of an energy shield is very efficient in this respect, offering energy savings of approx. 25 %. Further energy savings can be achieved with two-layer greenhouse walls and roof. Combining technical and management measures heating energy requirement for a 1000 m2 greenhouse can be reduced by up to 60 %. This could mean an around 124 t reduction in annual carbon dioxide emissions from a Venlo greenhouse with oil-fired heating. In that some of these energy saving actions also save operating costs, negative carbon dioxide reduction costs are achieved in most variants.