Analysis of the California WEPEX applications to FERC

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The major theme of this report is that the Western Power Exchange (WEPEX) Applications prevent the Independent System Operator (ISO) from clearing the market, and that this is the root of the most important problems. The proposed rules at fault (1) prevent the Power Exchange (PX) and other Scheduling Coordinators from passing on all of their bids to the ISO, and (2) prevent the ISO from dispatching beyond the point at which congestion is eliminated. Although it is generally accepted that these restrictions prevent the ISO from achieving the least-cost dispatch, many other consequences of this market-clearing failure have not ... continued below

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62 p.

Creation Information

Stoft, S. October 1, 1996.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 11 times . More information about this report can be viewed below.

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  • Stoft, S. Lawrence Berkeley National Lab., CA (United States). Environmental Energy Technologies Div.

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Description

The major theme of this report is that the Western Power Exchange (WEPEX) Applications prevent the Independent System Operator (ISO) from clearing the market, and that this is the root of the most important problems. The proposed rules at fault (1) prevent the Power Exchange (PX) and other Scheduling Coordinators from passing on all of their bids to the ISO, and (2) prevent the ISO from dispatching beyond the point at which congestion is eliminated. Although it is generally accepted that these restrictions prevent the ISO from achieving the least-cost dispatch, many other consequences of this market-clearing failure have not been widely recognized. These include sub-optimal dispatches by the PX when the system is uncongested, congestion charges that reward power flow in the congested direction, and incentives for Scheduling Coordinators to ignore known intra-zone congestion. But the most pernicious effect of failing to clear the market may be decreased system reliability. Four minor themes will also be considered but in less detail. Most importantly the author describes several examples of unequal treatment for the PX. Second, he discusses the ambiguities introduced by zonal pricing. WEPEX`s zonal system is based on a view of congestion that largely ignores loop flow and consequently has not been well defined. Third, WEPEX appears to have invented a new definition of the transmission congestion contract (TCC) that is based on actual instead of pre-specified flows. The author shows that this ruins the incentive properties of TCCs, but that this problem is partially rectified by the market in TCCs. Lastly, he discusses losses. The WEPEX proposal intentionally avoids marginal-cost pricing of losses. What has not been recognized is that it significantly increases use of the power grid. Because this effect is greatest during peak usage, it will necessitate costly grid expansion.

Physical Description

62 p.

Notes

INIS; OSTI as DE97007663

Source

  • Other Information: PBD: Oct 1996

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  • Other: DE97007663
  • Report No.: LBNL--39445
  • DOI: 10.2172/486123 | External Link
  • Office of Scientific & Technical Information Report Number: 486123
  • Archival Resource Key: ark:/67531/metadc676630

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • October 1, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

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  • April 5, 2016, 1:10 p.m.

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Stoft, S. Analysis of the California WEPEX applications to FERC, report, October 1, 1996; California. (digital.library.unt.edu/ark:/67531/metadc676630/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.