Sivu suurenee, kun klikkaat sitä.
Voit selata julkaisua ylävalikon tai aukeaman reunoissa olevien nuolipainikkeiden avulla. Voit vaihtaa aukeamaa myös sivun alalaidassa olevan aukeamanauhan avulla.
Voit siirtyä suoraan haluamasi luvun tai artikkelin alkuun sivun vasemmassa reunassa olevan sisällysluettelon avulla. Voit halutessasi peittää sisällysluettelon vasemmassa yläreunassa olevan kuvakkeen avulla.
Voit lukea julkaisua koko näytön tilassa klikkaamalla yläpalkissa olevaa kuvaketta.
Ylävalikon hakutoiminnolla voit etsiä julkaisussa esiintyviä sanoja. Hakutulos näyttää haetun sanan ensimmäiseltä sivulta, josta kyseinen sana löytyy.
Jos haluat katsoa, esiintyykö haettu sana useamman kerran samalla aukeamalla tai julkaisun seuraavilla sivuilla, klikkaa hakulaatikon oikealle osoittavaa sinistä nuolta.
Sivu: 1Sivu: 2Sivu: 3Sivu: 4Sivu: 5Sivu: 6Sivu: 7Sivu: 8Sivu: 9Sivu: 10Sivu: 11Sivu: 12Sivu: 13Sivu: 14Sivu: 15Sivu: 16Sivu: 17Sivu: 18Transmission unit prices increased by 6% on the year before as from 1 January 2010, while the increase at the beginning of 2011 was 9%. Gasum anticipates the rate of return on transmission charges to remain at the level defined as reasonable by the Energy Market Authority during the 2010−2013 regulatory period and enable necessary network development and maintenance activity. The transmission network is monitored around the clock at the central control room in Kouvola. Forecasts of natural gas consumption are produced on the basis of weather forecasts and industrial utilisation rates. Control room staff participate in Gasum’s short-term trading market activity by reporting the available transmission capacity within which volumes of gas can be offered for sale. In situations where gas transmission capacity or access to gas is low, gas consumption can be restricted by increasing the price of extra gas and additional transmission exceeding customers’ annual orders. In late 2010 Gasum published a regularly updated situation report in its online customer service system on the utilisation rate of the natural gas network transmission capacity and on the volume of gas stored in the natural gas network.The prices of extra gas and additional transmission are also given on the site. NETWORK MAINTENANCE, FUNCTIONING AND DEVELOPMENT Customer needs and supply security are taken into consideration in natural gas transmission network development.The construction of the new Mäntsälä-Siuntio pipeline began in 2010. Totalling 90 km in length, the pipeline will serve large natural gas users in the Helsinki Metropolitan Area in particular, while also providing access to the network for new municipalities in western Uusimaa, including Nurmijärvi and Vihti.The section is due to be operational in autumn 2011. Gasum began the construction of a new pipeline between Lempäälä and Kangasala in late 2010. The section will increase capacity to transmit natural gas to Kangasala and help supply natural gas to users including Ruoka-Saarioinen Oy food production facilities in Sahalahti. 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 life expectancy of natural gas pipelines is usually 30–50 years depending on the conditions of use. Gasum’s network maintenance programme includes overhaul of the oldest pipeline sections, with network automation also being developed. Planning work aiming at the replacement of compressor station automation in use since 1997 began in 2010.The estimated lifecycle of the new automation system is 15 years. There were no disturbances in the technical functioning of the natural gas transmission network in 2010.The amount of undelivered energy amounted to 0.005% of the energy transmitted via the network. There were two planned network service interruptions but no interruptions caused by disturbances. The EU’s new Gas Security Regulation entered into force in December 2010 and established provisions that aim to secure supply of gas.The Regulation specifies action to be taken in response to potential disruptions to gas supplies as well as the responsibilities of the EU, Member States and enterprises in this respect. The risks affecting the security of gas supply are assessed by the competent authority, which in Finland is the National Emergency Supply Agency. The Regulation provides a definition of ’protected customers’ to whom gas supply must be ensured in cases specified by the Regulation. Natural gas network in Finland IKAALINEN 3 NOKIA TAMPERE KANGASALA VALKEAKOSKI IMATRA LAPPEENRANTA HÄMEENLINNA LAHTI KOUVOLA RIIHIMÄKI ORIMATTILA NAANTALI TURKU KERAVA PORVOO ESPOO HELSINKI KIRKKONUMMI KOTKA HYVINKÄÄ MÄNTSÄLÄ HAMINA ANJALANKOSKI LOHJA INKOO Natural gas network Under construction Planned Gasum facilities Compressor units TALLINN PALDISKI NARVA 17
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