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Title: Optimal Electric Utility Expansion

Abstract

SAGE-WASP is designed to find the optimal generation expansion policy for an electrical utility system. New units can be automatically selected from a user-supplied list of expansion candidates which can include hydroelectric and pumped storage projects. The existing system is modeled. The calculational procedure takes into account user restrictions to limit generation configurations to an area of economic interest. The optimization program reports whether the restrictions acted as a constraint on the solution. All expansion configurations considered are required to pass a user supplied reliability criterion. The discount rate and escalation rate are treated separately for each expansion candidate and for each fuel type. All expenditures are separated into local and foreign accounts, and a weighting factor can be applied to foreign expenditures.

Publication Date:
Research Org.:
Lakeland Electric and Water
Sponsoring Org.:
DOE/NE
OSTI Identifier:
1230158
Report Number(s):
SAGEWASP; 000323IPCAT00
DOE Contract Number:
P
Resource Type:
Software
Software Revision:
00
Software Package Number:
000323
Software Package Contents:
ESTSC Note; Software Abstract; ORNL-4945;\1 CD-ROM
Software CPU:
IPCAT
Open Source:
No
Source Code Available:
Yes
Other Software Info:
Eleven disk files are created by the program and up to six of these are used by an individual program.
Related Software:
The WASP program evolved from the Tennessee Valley Authority''s Systems Analysis Generation Expansion (SAGE) program. This release includes the modifications and enhancements defined by the IAEA Newsletters (references 3, 4,and 5) and includes any changes up to but not including those described at the Columbus, Ohio, August 1977 WASP User''s Meeting.
Country of Publication:
United States

Citation Formats

. Optimal Electric Utility Expansion. Computer software. Vers. 00. DOE/NE. 10 Oct. 1989. Web.
. (1989, October 10). Optimal Electric Utility Expansion (Version 00) [Computer software].
. Optimal Electric Utility Expansion. Computer software. Version 00. October 10, 1989.
@misc{osti_1230158,
title = {Optimal Electric Utility Expansion, Version 00},
author = {},
abstractNote = {SAGE-WASP is designed to find the optimal generation expansion policy for an electrical utility system. New units can be automatically selected from a user-supplied list of expansion candidates which can include hydroelectric and pumped storage projects. The existing system is modeled. The calculational procedure takes into account user restrictions to limit generation configurations to an area of economic interest. The optimization program reports whether the restrictions acted as a constraint on the solution. All expansion configurations considered are required to pass a user supplied reliability criterion. The discount rate and escalation rate are treated separately for each expansion candidate and for each fuel type. All expenditures are separated into local and foreign accounts, and a weighting factor can be applied to foreign expenditures.},
doi = {},
year = 1989,
month = ,
note =
}

Software:
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  • SAGE-WASP is designed to find the optimal generation expansion policy for an electrical utility system. New units can be automatically selected from a user-supplied list of expansion candidates which can include hydroelectric and pumped storage projects. The existing system is modeled. The calculational procedure takes into account user restrictions to limit generation configurations to an area of economic interest. The optimization program reports whether the restrictions acted as a constraint on the solution. All expansion configurations considered are required to pass a user supplied reliability criterion. The discount rate and escalation rate are treated separately for each expansion candidate andmore » for each fuel type. All expenditures are separated into local and foreign accounts, and a weighting factor can be applied to foreign expenditures.« less
  • This thesis presents a new approach to electric utility generation expansion planning under uncertainty. A comprehensive probabilistic model of the problem is formulated that focuses on the important strategic issues, including demand, technological and regulatory uncertainties, long-term generation expansion dynamics, and technological and regulatory constraints. Then, a four-part algorithm is described for finding the minimum feasible discounted expected cost generation expansion plan. The first and fundamental component of the algorithm is a dynamic programming procedure which addresses an elementary generation expansion subproblem that is unconstrained, static, and deterministic. Second, a primal-dual procedure is used to address a static, deterministic subproblemmore » with capacity, energy, and capacity factor constraints. Third, a recursive technique is introduced to address a static, unconstrained subproblem that includes the effects of unscheduled outages. Finally, a decomposition technique is introduced to bridge the gap between the static subproblems and the dynamic, probabilistic generation expansion problem.« less
  • SAGE-WASP is designed to find the optimal generation expansion policy for an electrical utility system. New units can be automatically selected from a user-supplied list of expansion candidates which can include hydroelectric and pumped-storage projects. The existing system is modeled. The calculational procedure takes into account user restrictions to limit generation configurations to an area of economic interest. The optimization program reports whether the restrictions acted as a constraint on the solution. All expansion configurations considered are required to pass a user-supplied reliability criterion. The discount rate and escalation rate are treated separately for each expansion candidate and for eachmore » fuel type. All expenditures are separated into local and foreign accounts, and a weighting factor can be applied to foreign expenditures.« less
  • A lack of consensus on how to determine the optimal reserve fraction of electric utilities has resulted in disagreement about whether utility reserve capacity is adequate. Recent literature on the subject is cited and certain shortcomings are noted. A system for estimating the effects of shortages is proposed that involves customer participation. The method allows a utility manager to use appropriate reserve capacity and to allocate the costs among those customers who have subscribed for it. If each customer has remote-control equipment to take advantage of time-of-use rates, customers can subscribe for priority in reserve use and cover the costsmore » during the subscription period. Customers can decide on the importance of uninterrupted power and may choose to provide their own reserve power. Remote-control equipment allows load shedding to be selective. Small users could benefit from lower rates, which would justify their costs in remote-control equipment. A program is suggested for testing this method with at least partial funding by the Federal government. 7 references.« less

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