Measuring energy efficiency - structural and index decomposition analysis
DOI:
https://doi.org/10.29015/cerem.584Słowa kluczowe:
energy efficiency, index decomposition analysis, structural decomposition analysis, indicators, energyAbstrakt
Aim: The aim is to recognize the main determinants of the energy efficiency improvement in transport in Poland in the years 2000-2014 using structural and index decomposition analysis, and to identify areas where there is still potential for further reduction of energy consumption.
Design / Research methods: Techniques used to analyse changes in energy use are: structural decomposition analysis and index decomposition analysis. Each of these two methods is characterized by distinctive, unique techniques and approaches, as they have developed quite independently. Index decomposition analysis measures the impact of energy efficiency gains on the level of energy consumption, at the most detailed sector disaggregation level allowed by the available data. Whereas structural decomposition analysis allows to analyse the impact of the external factors, such as technological, demand, and demographic effects, on the fluctuations of the total energy consumption. The similarities and differences between the two approaches are summarized and illustrated with a numerical example of Polish transport.
Conclusions / findings: The article recognizes the main determinants of the energy efficiency improvement in transport sector in Poland in the years 2000-2014. In case of Poland ODEX shows an overall progress of energy efficiency in transport by 24.3%. Results obtained with decomposition analysis indicate large divergences in energy efficiency improvements between modes of transport and vehicle types and identify areas where there is still potential for further reduction of energy consumption. Results from decomposing structure of energy use, show activity effect to be main reason for energy use growth. The distribution of each mode in total traffic of passengers and goods changes toward less energy efficient modes. The only factor driving down the energy use is energy savings.
Originality / value of the article: Using two methods of decomposition analysis and comparing obtained outcomes allows to get a broader view on energy use trends. Results presented in this article are a good starting point for further detailed analysis of changes in energy use of transport.Bibliografia
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Autor przenosi nieodpłatnie na Wyższą Szkołę Bankową we Wrocławiu , bez ograniczeń terytorialnych, majątkowe prawa autorskie do tego utworu w rozumieniu ustawy z dnia 4 lutego 1994 roku o prawie autorskim i prawach pokrewnych ( Dz.U. 1994, Nr 24, poz. 83 ze zm. )na zasadzie wyłączności, tj. prawo do:
a) wyłącznego używania i wykorzystania utworu w dowolnej działalności przez Wyższą Szkołę Bankową we Wrocławiu, w szczególności w działalność Biblioteki Cyfrowej uruchomionej przez Wyższą Szkołę Bankową we Wrocławiu
b) wytwarzania, utrwalania i zwielokrotniania egzemplarzy utworów wszelkimi technikami, w tym techniką drukarską, reprograficzną, zapisu magnetycznego oraz techniką cyfrową, w szczególności ich zwielokrotniania poprzez dokonywanie zapisów na płytach typu CD,
c) zamieszczenia wybranych fragmentów utworu w celach promocyjnych w publikacjach, materiałach promocyjnych, w sieci Internet oraz sieciach wewnętrznych typu Intranet Wyższej Szkoły Bankowej we Wrocławiu,
d) wprowadzania utworu do pamięci komputera Wyższej Szkoły Bankowej we Wrocławiu,
e) kopiowania i powielania utworu w technologiach fotomechanicznych lub innych znanych w dniu zawarcia umowy (fotokopie, kserokopie itp.),
f) przetworzenia dzieła na formę elektroniczną i nieograniczonego rozpowszechniania w sieci Internet.
