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Energy and cost analysis of household electricity efficiency improvements in a rental apartment building
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In this thesis potential for (final and primary) energy and CO2 emission reductions and cost effectiveness of replacing existing household electric appliances and light bulbs with most popular or most energy efficient appliances in a multifamily apartment building in Växjö city is studied. The results showed that there is significant potential to reduce electricity demand and thereby to reduce primary energy use and CO2 emissions. The greatest potential lies with replacing existing incandescent bulbs with LED bulbs, while the lowest savings seem to be with replacement of microwave ovens. Assuming that reduced electricity demand reduces electricity generation in coal-based steam turbine (CST) technology, annually about 63 MWh of primary energy and 25 ton CO2 emissions could be reduced from the investigated building if the existing refrigerator/freezer, stove/oven, microwave oven, televisions and light bulbs are replaced with the most energy efficient alternatives available in the market today. Also, the results from ‚discounted payback period‛ and ‚cost of conserved energy‛ analyses also showed that it is cost-effective to install the most energy efficient appliances.

This study for a single building is based on limited number of interviews, selected appliance types, and number of assumptions about marginal electricity production systems. To generalize the results more such studies in different conditions with measurement of actual energy use of all the household appliances should be conducted, which would help to fully understand the potential of primary energy savings and CO2 emission reductions in Swedish apartment buildings.

Place, publisher, year, edition, pages
2012. , 60 p.
Keyword [en]
household electricity, energy efficiency, cost analysis, CO2 emissions
National Category
Environmental Engineering
Identifiers
URN: urn:nbn:se:miun:diva-17151OAI: oai:DiVA.org:miun-17151DiVA: diva2:558359
Subject / course
Ecotechnology and Environmental Science
Educational program
Internationellt masterprogram i ekoteknik och hållbar utveckling NEKAA 120 hp
Uppsok
Technology
Supervisors
Available from: 2012-10-09 Created: 2012-10-03 Last updated: 2012-10-09Bibliographically approved

Open Access in DiVA

Manaswita D-thesis(1385 kB)364 downloads
File information
File name FULLTEXT02.pdfFile size 1385 kBChecksum SHA-512
97dac4c9ef8b8849cf5079f18963959662ab7a65ed20188c7112199d1a54a8b9f5f71ffc2713a9805be3ba267a0516ec87dafb112d6778acb3f4c4ff5ae2e429
Type fulltextMimetype application/pdf

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Panigrahi, Manaswita
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Total: 364 downloads
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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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