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Accommodating Variability in Generation Planning
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File | Description | Size | Format | |
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Shortt Accommodating Variability in Gen Plan_2012.pdf | 1.67 MB |
Author(s)
Date Issued
February 2013
Date Available
11T16:11:21Z October 2013
Abstract
Many of the most commonly used generation planning models have been formulated in a way that neglects the chronological sequence of demand and the mixed-integer nature of generating units. The generator schedules assumed by these models are inaccurate and become increasingly divorced from real schedules with increasing variability. This paper seeks to characterize and quantify the limitations of these models over a broad set of input parameters. For an illustrative set of test systems, wind capacities and generator types, annual system costs are determined for all combinations of generating units using a unit-commitment model, which captures the chronological behavior of units and a dispatch model which does not. It is seen that the relative performance of the dispatch model is highly system specific but generally degrades with increasing variability. The difference in cost estimates between the models is decomposed into start costs, starts avoidance and average cost estimation error. The impact on least-cost portfolios is shown and finally sensitivities are performed with the addition of hydro and nuclear power to assess their impact.
Sponsorship
Science Foundation Ireland
Type of Material
Journal Article
Publisher
Institute of Electrical and Electronics Engineers
Journal
IEEE Transactions on Power Systems
Volume
28
Issue
1
Start Page
158
End Page
169
Copyright (Published Version)
2013 Institute of Electrical and Electronics Engineers
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
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70
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