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On the Physics and Economics of Renewable Electric Energy Sources - part I Utilization
Uppsala Univ, Swedish Ctr Renewable Elect Energy Convers, Div Elect, S-75121 Uppsala, Sweden..
KTH, School of Industrial Engineering and Management (ITM), Industrial Economics and Management (Dept.).
Uppsala Univ, Swedish Ctr Renewable Elect Energy Convers, Div Elect, S-75121 Uppsala, Sweden..
Abo Akad Univ, Dept Business Adm, SF-20500 Turku, Finland..
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2008 (English)In: PROCEEDINGS OF THE 8TH WSEAS INTERNATIONAL CONFERENCE ON ELECTRIC POWER SYSTEMS, HIGH VOLTAGES, ELECTRIC MACHINES / [ed] Misra, SC Revetria, R Sztandera, LM Iliescu, M Zaharim, A Parsiani, H, WORLD SCIENTIFIC AND ENGINEERING ACAD AND SOC , 2008, p. 263-268Conference paper, Published paper (Refereed)
Abstract [en]

Increasingly, environmental concerns have led to the installation of Renewable Energy Technologies (RETs) despite the fact that they are recognized as expensive. Innovative efforts within the area are beset by difficulties [1] Grubb 1994, where improvements in cost effectiveness of total energy conversion systems are often insignificant and misdirected. We have investigated how RETs can be evaluated, in terms of economy and engineering solutions, by studying the fundamental physics of renewable energy sources and how it matches with the RETs. This match is described by the "Degree of Utilization". The findings indicate that new innovations should focus on possible full loading hours, since RETs that are correctly matched to their energy source generate a higher amount of electric energy and become more competitive. In cases where this aspect has been ignored, leading to relatively small degrees of utilization, it can be understood as an engineering mismatch between installed power, converted energy, and the fundamental physics of the renewable energy sources. Since there is a strong and possibly biased support for so-called mature RETs and already existing solutions, a clarification of how fundamental physical laws affect the cost of investment and payback of investment is needed. The present paper is part I out of II and if focuses on the difference between power and energy and the physics of different energy sources and their utilization.

Place, publisher, year, edition, pages
WORLD SCIENTIFIC AND ENGINEERING ACAD AND SOC , 2008. p. 263-268
Series
Recent Advances in Electrical Engineering, ISSN 1790-5117
Keywords [en]
Degree of utilization, Engineering, Economy, Electric Power and Energy, Renewable Electric Energy, RET
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-242926ISI: 000262949300043ISBN: 978-960-474-026-0 (print)OAI: oai:DiVA.org:kth-242926DiVA, id: diva2:1287637
Conference
8th WSEAS International Conference on Electric Power Systems, High Voltages and Electric Machines, NOV 21-23, 2008, Venice, ITALY
Note

QC 20190211

Available from: 2019-02-11 Created: 2019-02-11 Last updated: 2019-02-11Bibliographically approved

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