National Electric Transmission Congestion Study - W2agz.com
National Electric Transmission Congestion Study - W2agz.com National Electric Transmission Congestion Study - W2agz.com
Contents Executive Summary ................................................................. Acronyms Used in This Report ........................................................ 1. Introduction...................................................................... 1 1.1. Organization of This Study ...................................................... 2 1.2. Definitions of Key Terms and Concepts ............................................ 3 1.3. Consultation with States and Regional Entities. ...................................... 6 2. Study Approach and Methods ....................................................... 9 2.1. Review of Historical Transmission Studies. ......................................... 9 2.2. Simulations .................................................................. 9 2.3. Scenario Analyses and Economic Assumptions ...................................... 10 2.4. Estimating and Evaluating Congestion ............................................. 13 2.5. The Eastern Interconnection ..................................................... 14 2.6. The Western Interconnection..................................................... 17 3. Congestion and Constraints in the Eastern Interconnection ............................... 21 3.1. Historical Transmission Constraints and Congestion Areas ............................. 21 3.2. Results from Simulations of the Eastern Interconnection ............................... 25 4. Congestion and Constraints in the Western Interconnection .............................. 31 4.1. Historical Transmission Constraints in the Western Interconnection ...................... 31 4.2. Congestion Findings From Modeling for the Western Interconnection .................... 34 5. Critical Congestion Areas, Congestion Areas of Concern, and Conditional Congestion Areas . . . 39 5.1. Overview .................................................................... 39 5.2. Congestion Areas in the Eastern Interconnection ..................................... 41 5.3. Congestion Areas in the Western Interconnection .................................... 44 5.4. Enabling New Resource Development: Conditional Constraint Areas. .................... 49 5.5. Conclusion................................................................... 57 6. Request for Comments on Designation of National Corridors and on This Study .............. 59 6.1. Request for Comments Concerning Designation of National Corridors. ................... 59 6.2. General Request for Comments on the Congestion Study .............................. 62 7. Next Steps Regarding Congestion Areas and Considerations for Future Congestion Studies..... 63 7.1. Next Steps Regarding Congestion Areas. ........................................... 63 7.2. Considerations for Future Congestion Studies ....................................... 64 vii xi U.S. Department of Energy / National Electric Transmission Congestion Study / 2006 iii
- Page 1: NATIONAL ELECTRIC TRANSMISSION CONG
- Page 6 and 7: Contents (continued) Glossary .....
- Page 9 and 10: Executive Summary Section 1221(a) o
- Page 11 and 12: Figure ES-3. One Critical Congestio
- Page 13 and 14: Acronyms Used in This Report AC AEP
- Page 15 and 16: FEDERAL POWER ACT 1. Introduction *
- Page 17 and 18: need to be made in the next few yea
- Page 19 and 20: Transmission Constraints, Paths, an
- Page 21: • On February 2, 2006, the Depart
- Page 24 and 25: 2.3. Scenario Analyses and Economic
- Page 26 and 27: not explicitly identified by WECC.
- Page 28 and 29: most limiting element is considered
- Page 30 and 31: 3. Development of analytical proced
- Page 32 and 33: Simulation modeling to estimate fut
- Page 35 and 36: 3. Congestion and Constraints in th
- Page 37 and 38: 6. American Electric Power and Firs
- Page 39 and 40: As shown in Figure 3-6, major const
- Page 41 and 42: model assumed dispatch on the basis
- Page 43: efficient gas-fired generation, and
- Page 46 and 47: Figure 4-1. Congestion on Western T
- Page 48 and 49: on a line designed specifically for
- Page 50 and 51: Figure 4-5. Projected Congestion on
- Page 52 and 53: when path loading is at or above 75
Contents<br />
Executive Summary .................................................................<br />
Acronyms Used in This Report ........................................................<br />
1. Introduction...................................................................... 1<br />
1.1. Organization of This <strong>Study</strong> ...................................................... 2<br />
1.2. Definitions of Key Terms and Concepts ............................................ 3<br />
1.3. Consultation with States and Regional Entities. ...................................... 6<br />
2. <strong>Study</strong> Approach and Methods ....................................................... 9<br />
2.1. Review of Historical <strong>Transmission</strong> Studies. ......................................... 9<br />
2.2. Simulations .................................................................. 9<br />
2.3. Scenario Analyses and Economic Assumptions ...................................... 10<br />
2.4. Estimating and Evaluating <strong>Congestion</strong> ............................................. 13<br />
2.5. The Eastern Interconnection ..................................................... 14<br />
2.6. The Western Interconnection..................................................... 17<br />
3. <strong>Congestion</strong> and Constraints in the Eastern Interconnection ............................... 21<br />
3.1. Historical <strong>Transmission</strong> Constraints and <strong>Congestion</strong> Areas ............................. 21<br />
3.2. Results from Simulations of the Eastern Interconnection ............................... 25<br />
4. <strong>Congestion</strong> and Constraints in the Western Interconnection .............................. 31<br />
4.1. Historical <strong>Transmission</strong> Constraints in the Western Interconnection ...................... 31<br />
4.2. <strong>Congestion</strong> Findings From Modeling for the Western Interconnection .................... 34<br />
5. Critical <strong>Congestion</strong> Areas, <strong>Congestion</strong> Areas of Concern, and Conditional <strong>Congestion</strong> Areas . . . 39<br />
5.1. Overview .................................................................... 39<br />
5.2. <strong>Congestion</strong> Areas in the Eastern Interconnection ..................................... 41<br />
5.3. <strong>Congestion</strong> Areas in the Western Interconnection .................................... 44<br />
5.4. Enabling New Resource Development: Conditional Constraint Areas. .................... 49<br />
5.5. Conclusion................................................................... 57<br />
6. Request for Comments on Designation of <strong>National</strong> Corridors and on This <strong>Study</strong> .............. 59<br />
6.1. Request for Comments Concerning Designation of <strong>National</strong> Corridors. ................... 59<br />
6.2. General Request for Comments on the <strong>Congestion</strong> <strong>Study</strong> .............................. 62<br />
7. Next Steps Regarding <strong>Congestion</strong> Areas and Considerations for Future <strong>Congestion</strong> Studies..... 63<br />
7.1. Next Steps Regarding <strong>Congestion</strong> Areas. ........................................... 63<br />
7.2. Considerations for Future <strong>Congestion</strong> Studies ....................................... 64<br />
vii<br />
xi<br />
U.S. Department of Energy / <strong>National</strong> <strong>Electric</strong> <strong>Transmission</strong> <strong>Congestion</strong> <strong>Study</strong> / 2006<br />
iii
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