Stockholm-Arlanda Airport’s energy consumption includes space heating, electricity and cooling. Most buildings at the airport are warmed up today by a district heating network based on combustion of biofuel. Swedavia, which owns, operates and develops the airport, also purchases “green electricity certificates” equivalent to its entire electricity consumption. These certificates guarantee electricity production from exclusively renewable sources, that is, wind, solar, hydropower and/or biofuels. Swedavia’s net carbon dioxide emissions from space heating of its own buildings and from the production of the electricity that it purchases are thus regarded as being zero.
Cooling of Swedavia’s buildings at Stockholm-Arlanda takes place largely using water from Lake Halmsjön. This has enabled the airport to reduce the number of cooling units containing environmentally hazardous CFCs (freons).
By 2010, all space heating shall be biofuel-based
Swedavia also wants other companies’ buildings at Stockholm-Arlanda to use renewable energy. Net carbon dioxide emissions from space heating of other buildings at the airport are already low − carbon dioxide emissions from space heating in the entire airport are 95 per cent lower today than in 1990. The target for 2010 is that all space heating of buildings at the airport shall be biofuel-based. This is why the removal of the last oil-burning energy systems at Stockholm-Arlanda is being accelerated.
Energy consumption shall be reduced
Energy consumption is not only associated with environmental impact, but also large costs. Since Stockholm-Arlanda Airport is always endeavouring to reduce both its environmental impact and its costs, Arlanda Energi was established. It is a separate department at Swedavia in charge of supplying the airport with energy. Between 2005 and 2007, Swedavia reduced its energy consumption at the airport by 18 per cent. This is equivalent to a full year’s consumption at Göteborg-Landvetter Airport, Swedens second largest airport. The target for 2010 is that Swedavia’s energy consumption at Stockholm-Arlanda shall be 30 per cent lower.
Large energy savings by using an aquifer
An aquifer is placed in service − it is the world’s largest energy storage unit. The aquifer will both heat and cool the buildings at Stockholm-Arlanda.
The aquifer - read more