wood -based fuel conveyed directly from UPM-Kymmene's debarking facility, and also coal. Also on the east side is the crusher station for the logging residue bundles/bales. Advanced information management The broad ownership base of the Alholmens plant and the use of demanding technology played a key role in Alholmens Kraft's decision to invest in a highly comprehensive information management system with which plant operation and performance could be followed closely. Accurate monitoring and reporting of the plant's various products {electricity, process steam and district heating) are of utmost importance to ensure proper invoicing. Due to the boiler's large size and wide range of fuels, accurate monitoring, for example, of fuel consumption and efficiency would be next to impossible without advanced calculation applications. Automation and information management is being provided by Metso Automation's dynamic network of applications, metsoDNA, which is based on the free networking of knowledge and information, control automation and embedded field control. The metso DNA system covers the whole automation process from fuel processing to the distribution of district heating. Thirteen redundant process stations manage the plant's measuring and control activities, comprising about 10000 1/0 circuits. The interfacing stations also link the boiler's safety system, the steam turbine controls and safety system and the electricity distribution system to the applications network. Three operator workstations are used to control and monitor the process. The plant's shift supervisor has his own workstation. A courageous step The owners of Alholmens Kraft have taken a courageous and far-reaching step in investing in the world's largest bio-fired power station. But they are dependent on long-term national policies regarding energy. At the same time they are helping to fulfil the targets set by the EU to increase the consumption of bio fuels and reduce the levels of carbon dioxide emissions. Electricity generated by the power station will be competing on the open Nordic market. The more competitive the electricity prices of Alholmens Kraft, the more the power station will be able to exploit the local bio energy market. Over the next few years, many other tree-based bio fuels will be used in tests with a view to increase the amount of bio fuels harnessed in generating power. The competitive position of Alholmens Kraft will undoubtedly be followed with great interest in energy circles ali over the world. 214 MWe Prıctıs sltım IOOMW . Dlılıicl hut 61JMW e MAKALE / ARTICLE The more competitive the electricity prices of Alholmens Kraft, the more the power station will be able to exploit the local bio energy market sımııııneıı ıcııemıııc ol Uıı Alıolmenı P1ıı1 Un stıım s.tsı : 165 bu 1!M kg/s Refıufıf SW'C 37 bır m kgls .silıs Ammtnlılô),HfDtınk Limısilt , n Ashı�ı ! Bıier 1 '-t Over the next few years, many other tree-based bio fuels will be used in tests with a view to increase the amount of bio fuels harnessed in generating power. The competitive position of Alholmens Kraft will undoubtedly be followed with great interest in energy circles all over the world. bollıtr, Thefumace lı 8,5X24 X40, $ m. Thorıt are 3000 ı of presıure pırtı, wlth270kmofpi po ECOGENERATION WORLD 59
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