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Report-evaluation of a small scale district heating system in Ullared, Sweden
Halmstad University, School of Business and Engineering (SET), Biological and Environmental Systems (BLESS), Energiteknik.
2010 (English)Report (Other (popular science, discussion, etc.))
Abstract [en]

This evaluation and final report is a part of an EU-project, “Energy in Minds” (EiM). The project is a part of the EU-programme Concerto within the Sixth Framework Programme. EiM has been running from 2005 and is now finalized in May 2010. Within the EiM project, the local energy company, Falkenberg Energi AB (FEAB), has received EU-funding of totally 98 200 Euro for the two local heating systems consist of a completely new small scale district heating system in Ullared and one partly new in Vessigebro, in the north-east part of the municipality of Falkenberg. The system in Ullared, which this report is focusing on, a prefabricated transportable heating plant with a boiler of 1500 kW has been installed. The fuel used is pellets. The pipe network consists now of about 2,5 km of double pipeline. 22 customers have been con-nected so far, representing a heat demand of about 2400 MWh annually. The main customers are the school building, health care centre, elderly housing and the parish. The main pipe network is made up of traditional double district heating pipes of steel with polyurethane insulation and a polythene casing.

The financial results have improved during 2009, mostly due to greatly reduced depreciations. For 2009 the result was +304 000 SEK. (2008: -146 000 SEK) The heat density of the system in Ullared is, being a small scale district heating system, quite normal with a linear heat density of about 0,8 MWh/m. But the key problem of the district heating system in Ullared is the very low connection rate which is roughly estimated to 22%. This is for the system in Ullared at the same time a well needed future potential for expansion. The Environmental impact is important for many customers when they chose their heating system and it is usually a good argument for the district heating industry as a whole. However, the environmental impact from low density district heating systems is higher than for traditional systems since both heat losses and resource depletion from pipes and components increase with lower heat density. Still research report referred to in this report states that the choice of district heating is a good choice for the environmental impact for those property owners who today uses fossil fuel for heating. One estimation says roughly a reduction of 40 tons of CO2-equivalents per year compared with oil furnace heating. Finally, the small scale district heating system in Ullared has definitely the potential of attracting more customers in the future with a well spread out distribution net with many buildings close situated offering an alternative for change of heating system for potential customers for a future connection when energy prices for oil and electricity increases even more. Anyway it will have a positive impact on the environment both globally and locally.

Place, publisher, year, edition, pages
Halmstad: Högskolan i Halmstad , 2010. , 14 p.
Keyword [en]
District heating, Ullared
Keyword [sv]
Fjärrvärme, närvärme, Ullared
National Category
Engineering and Technology
URN: urn:nbn:se:hh:diva-13997OAI: diva2:376494
Energy in Minds

Energy in Minds is a project of the Concerto initiative co-funded by the European Commission within the sixth Framework Program.

Available from: 2011-04-21 Created: 2010-12-10 Last updated: 2012-10-15Bibliographically approved

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