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Reduction of electricity use in Swedish industry and its impact on national power supply and European CO2 emissions
Optensys Energianalys, Linköping, Sweden.
Linköping University, Department of Management and Engineering, Energy Systems. Linköping University, The Institute of Technology.
2008 (English)In: Energy Policy, ISSN 0301-4215, Vol. 36, no 7, 2330-2350 p.Article in journal (Refereed) Published
Abstract [en]

Decreased energy use is crucial for achieving sustainable energy solutions. This paper presents current and possible future electricity use in Swedish industry. Non-heavy lines of business (e.g. food, vehicles) that use one-third of the electricity in Swedish industry are analysed in detail. Most electricity is used in the support processes pumping and ventilation, and manufacturing by decomposition. Energy conservation can take place through e.g. more efficient light fittings and switching off ventilation during night and weekends. By energy-carrier switching, electricity used for heat production is replaced by e.g. fuel. Taking technically possible demand-side measures in the whole lines of business, according to energy audits in a set of factories, means a 35% demand reduction. A systems analysis of power production, trade, demand and conservation was made using the MODEST energy system optimisation model, which uses linear programming and considers the time-dependent impact on demand for days, weeks and seasons. Electricity that is replaced by district heating from a combined heat and power (CHP) plant has a dual impact on the electricity system through reduced demand and increased electricity generation. Reduced electricity consumption and enhanced cogeneration in Sweden enables increased electricity export, which displaces coal-fired condensing plants in the European electricity market and helps to reduce European CO2 emissions. Within the European emission trading system, those electricity conservation measures should be taken that are more cost-efficient than other ways of reducing CO2 emissions. The demand-side measures turn net electricity imports into net export and reduce annual operation costs and net CO2 emissions due to covering Swedish electricity demand by 200 million euros and 6 Mtonne, respectively. With estimated electricity conservation in the whole of Swedish industry, net electricity exports would be larger and net CO2 emissions would be even smaller.

Place, publisher, year, edition, pages
2008. Vol. 36, no 7, 2330-2350 p.
Keyword [en]
Electricity consumption, Energy conservation, Power generation
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-14162DOI: 10.1016/j.enpol.2007.08.033OAI: diva2:22766
Available from: 2006-11-27 Created: 2006-11-27 Last updated: 2009-04-29
In thesis
1. Swedish industrial and energy supply measures in a European system perspective
Open this publication in new window or tab >>Swedish industrial and energy supply measures in a European system perspective
2006 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

A common electricity market in Europe will in all probability lead to a levelling out of the electricity price, which implies that Swedish consumers will face higher electricity prices with a European structure. This new market situation will force industry and energy suppliers to take new essential measures as actors in a deregulated European electricity market.

In this thesis it is shown how over 30 Swedish small and medium-sized industries can reduce their use of electricity by about 50%. When scaling up the result to include all Swedish industry, the measures will lead to a significant reduction in global CO2 emissions, and a situation where Sweden will have a net export of electricity.

Changing industrial energy use towards increased use of district heating will consequently affect the local energy suppliers. As a local energy supplier invests in CHP and co-operates on heat with an industry that has altered its energy use, the system cost will be halved. Considering higher European electricity prices, the benefits will be even higher with possibilities to reduce global emission with over 350%.

In Sweden where district heating is very well established, heat driven absorption technology is especially favourable since it will lead to cost effective electricity production and increased utilization time for a CHP plant. Vapour compression chillers have been compared with heat driven absorption cooling for a local energy utility with a district cooling network and for industries in a Swedish municipality with CHP. The results show that the higher the share of absorption technology is, in comparison to compression chillers, the lower the production cost will be for producing cooling.

This thesis illustrates measures for Swedish industry and energy suppliers in a fully deregulated European electricity market that will shift the energy systems in the direction of cost-effectiveness and resource effectiveness. The thesis also shows that the benefits of the measures will increase even more when accounting with electricity prices with a higher European structures. To methodically change the use of electricity would be an economical way to increase the competitiveness of Swedish plant in relation to other European plants.

Taking advantage of these particularly Swedish conditions will contribute to the creation of lean resource systems, and as a result help the whole EU region to meet its commitment under the Kyoto Protocol. Altering industrial energy use towards less electricity and energy dependence will be a competitive alternative to new electricity production and help secure energy supply in the European Union.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2006. 125 p.
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1049
Deregulated European Electricity market, Industries, Energy suppliers, CO2 emissions, Electricity reduction, European electricity prices
National Category
Engineering and Technology
urn:nbn:se:liu:diva-7832 (URN)91-85643-70-X (ISRN)91-8564-370-X (ISBN)
Public defence
2006-10-24, C3, Hus C, Campus Valla, Linköpings universitet, Linköping, 10:15 (English)
Available from: 2006-11-27 Created: 2006-11-27 Last updated: 2012-01-30Bibliographically approved

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