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Sivu: 1Sivu: 2Sivu: 3Sivu: 4Sivu: 5Sivu: 6Sivu: 7Sivu: 8Corporate responsibility Key FiGUres seCUrity oF sUpply ENSURING ACCESS TO AND SUPPLY SECURITY OF NATURAL AND BIOGAS Gasum’s main duties with regard to access and supply security are having an up-to-date natural gas supply contract, ensuring the technical functioning of natural gas transmission and distribution networks, and investments in biogas production and product development. Access to natural and biogas sufficient access to natural gas in Finland has been ensured under an agreement between Gasum and Gazprom export that is valid until 2026. the supply agreement covers the current Finnish consumption of natural gas and it is also possible to increase the procurement of gas under the contract in the event of an increase in Finnish natural gas consumption. natural gas deliveries to Finland have taken place smoothly throughout the history of natural gas consumption in our country, and both parties have complied with the current agreement regarding supply amounts and grounds for price determination. Gasum is developing the utilisation of biogas in Finland in cooperation with its associated company biovakka suomi oy (20% shareholding), which has biogas facilities in Vehmaa and turku. Gasum and biovakka are planning the construction of a biogas facility in nastola. the facility will have annual capacity to process 120,000 tonnes of biomass and generate around 25 GWh of energy from biogas. Gasum signed the first agreement on the supply of biogas in september 2010, under which biogas will be produced by Kymen bioenergia oy, a company owned jointly by energy, waste and water utilities. the plant where biogas will be purified and its relative methane content increased will be constructed by Kss energia oy. Gasum will construct a pressurisation, measurement and analysis system in conjunction with the plant, enabling the injection of up- graded biogas into the natural gas transmission network and the measurement of gas quality and quantity. biogas production will commence in early 2011, with biogas injection into Gasum’s network due to begin in the autumn. the annual objective is to produce around 7 GWh of biogas for the gas network. according to an expert estimate by Mtt agrifood research Finland, Finnish potential for the production of biogas for use as a transport fuel amounts to 2–3 tWh from waste and manure-based materials and 6 tWh from field energy without compromising food and feed production. there are also major opportunities available in synthetic biogas Gasum Oy production. natural gas pressure and that way increase flow in pipelines. Valve stations are needed to shut off pipeline sections from the network for reasons including maintenance work. the functioning of the network is monitored using a specific monitoring system that employs electronic data transmission. preventative maintenance helps ensure the transmission network remains safe and reliable. Maintenance is carried out in keeping with the written instructions of Gasum’s preventative maintenance programme. some 2,500 maintenance measures are carried out each year. the easternmost point of the network is located in imatra, which is where the volume has system and quality of natural gas entering Finland is responsibility for the Finnish measured. the westernmost and also the Ensuring security of supply northernmost point is in ikaalinen. natural gas transmission Gasum oy has system responsibility for natural gas supply reliability was excellent network, supply of natural gas the Finnish natural gas transmission netin 2010. the amount of energy not delivered and network maintenance and work, supply of natural gas and network accounted for 0.005% of the total energy volmaintenance and development. the transume transmitted via the network. there were development. mission network is Gasum’s largest asset two planned network service interruptions but and a major part of Gasum Group personnel, no interruptions caused by disturbances. around 100 employees, work in transmission netCustomer needs and supply security are taken work maintenance duties. into consideration in natural gas transmission network Gasum transmits natural gas imported from russia along a development. by year-end 2010, Gasum had a total of 1,190 km of Gasum-owned high-pressure (max. 54 bar) transmission pipeline to transmission pipeline. the construction of the new Mäntsälä-siuntio customers and delivers it to them at a lower pressure via pressure natural gas pipeline began in 2010. totalling 90 km in length, the reduction stations. the transmission network is monitored around pipeline will serve large natural gas users in the Helsinki Metrothe clock at Gasum’s central control room in Kouvola. Forecasts of politan area in particular. Gasum began the construction of a new natural gas consumption are produced on the basis of issues such pipeline between lempäälä and Kangasala in late 2010. the section as weather forecasts and industrial utilisation rates. will increase capacity to transmit natural gas to Kangasala and help the steel pipelines along which gas is transmitted are laid at a supply natural gas to users including saarioinen food production depth of 1−2 metres and marked with signposts along the way. facilities in sahalahti. the transmission system also includes valve stations, compressor stations and communication masts. Compressors are used to raise Corporate responsibility report 2010 8 eU6
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