IN LINKÖPING, SWEDEN
BIOGAS IN BUSES, CARS AND TRAINS
BIOGAS IN THE SOCIETY
Information from IEA BIOENERGY
TASK 37 Energy from biogas and landfill gas
SUMMARY
The Linköping Biogas plant in Sweden was started in
1997 in order to treat organic waste from the agricultural sector in southeastern Sweden. Another main purpose was to produce biogas for the urban city buses in order to reduce the local, regional and global emissions from the urban transport system.
The plant has an annual treatment capacity of 100,000 tonnes and produces 4.7 million m3 of upgraded biogas
(97% CH4) that is used in 64 buses and a number of heavy and light duty vehicles. Since 2002 there are only biogas buses in the urban transport fleet and the CO2- emissions have been reduced by more than 9,000 tonnes per year.
The Linköping biogas plant
Photo: Svensk Biogas
FACTS
– Treatment of slaughter house waste and industrial organic waste
– Start of operation: 1996
– Total biogas production: 7.7 million m3/year
– Digester volume: 2 * 3700 m3
– Upgraded biogas delivered to vehicles
(97% methane): 4.7 million Nm3/year (2005)
– Total investment : 14 million EUR
– 64 biogas buses
– 12 public biogas filling stations (2005)
BACKGROUND
Linköping is a city on the east coast of Sweden with
140,000 inhabitants. The city both has a university and a number of important industries e.g. SAAB Aero airplane assembly. The city is located in the middle of an agricultural district on the plains of eastern Sweden. The prerequisites for building a biogas plants were thus obvious. The manure from cattle and pigs in the area could be co-digested with abattoir waste and organic waste from other food industries in the area.
In the early 90’s the city of Linköping was in the process of converting the bus fleet to an alternative fuel in order to reduce the local pollution from diesel buses. The most interesting alternative was natural gas. The