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TEAC4

TEAC4. AUGUST 9, 2001 Radisson Hotel Marlborough, Massachusetts. Agenda. Welcoming Remarks RTEP01 Process Additional Comments by 8/17 Public Meeting Notice RTEP01 Overview and Comments RRAA IREMM SCED Findings/Recommendations. NB. HQ. BHE. ME. RTEP Geographic Scope. VT. SME.

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TEAC4

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  1. TEAC4 AUGUST 9, 2001 Radisson Hotel Marlborough, Massachusetts

  2. Agenda • Welcoming Remarks • RTEP01 Process • Additional Comments by 8/17 • Public Meeting Notice • RTEP01 Overview and Comments • RRAA • IREMM • SCED • Findings/Recommendations

  3. NB HQ BHE ME RTEP Geographic Scope VT SME NH BOST SEMA / RITransmission Constraint NY CMA/ NEMA WMA SEMA CT RI SWCT NOR

  4. FINDINGS • The One Bus Model Analysis (ABB/Westinghouse Model) indicates compliance with the Loss of Load Expectation (LOLE) criteria of one day in ten years (0.1 Days/Year) for the study period 2002 - 2006. The maximum LOLE was 0.014 in 2006.

  5. FINDINGS • The same one bus model indicates gross noncompliance with the LOLE criteria during the study period if the 14 so-called “high environmental impact” units were to become unavailable

  6. FINDINGS • .The new generation coming on line, coupled with the recent NEMA transmission upgrades, will forestall reliability problems in Boston for the next several years.

  7. FINDINGS • .From a planning perspective, the SEMA-RI sub-areas will have significant amounts of locked in generation beginning in 2002 due to the lack of adequate transmission capability.

  8. FINDINGS • The analysis indicates reliability problems in the SWCT and NOR sub-areas beginning in 2002 and growing in significance whenever the largest unit in the SWCT sub-area is unavailable. This problem could be mitigated with additional generation or targeted demand-side management programs in the SWCT and NOR sub-areas.

  9. FINDINGS • .The ME/NH transmission interface will become constrained in the intermediate term. (In large part, the current congestion is forecasted to be relieved by the new generation coming on line before the 2002 summer period.

  10. FINDINGS • .Ongoing and planned local area studies are addressing both major bulk power transmission and local reliability issues.

  11. FINDINGS • Significant transmission congestion will exist from an economic viewpoint, primarily between ME/NH and Boston, SEMA-Rl and both Boston and SWCT. Estimates of New England congestion range between approximately $200‑600 million per year during the study period depending on the assumptions utilized.

  12. FINDINGS • .The PCCA highlights that bidding variations by generators in constrained areas will impact congestion costs.

  13. FINDINGS • .CMS will increase the value of transmission upgrades as well as generation additions and demand-side management programs in constrained sub-areas.

  14. FINDINGS • Cross Sound Cable construction would provide reliability benefits

  15. FINDINGS • .Existing operating limitations on HQ Phase II below the design limit are very costly. Analysis shows that moving from the current limit of 1500 MW to the 2000 MW design limit reduces total supply cost by more than $200 million over the five year study period.

  16. RECOMMENDATIONS • .Pursue, on a priority basis, short-term transmission system upgrades to address the SWCT reliability concerns. • .Perform an economic analysis of the benefits of upgrading the transmission interface limits between SEMA-RI and both Boston and SWCT and between ME/NH and Boston. Use the IREMM model to examine the economic benefits for transfer improvements.

  17. RECOMMENDATIONS • .Perform feasibility studies including examination of alternatives and cost estimates for major transmission interface upgrades related to transmission limits between SEMA-RI and both Boston and SWCT and between ME/NH and Boston. • .Develop a list of short-term fixes to the SEMA-RI locked in generation condition.

  18. RECOMMENDATIONS • .Increase interregional efforts to resolve the Northeast problem relating to required transmission system improvements in order to better utilize the HQ Phase II facility. • .Complete other major local-area and sub-regional transmission system assessments and design studies in accordance with the schedule outlined in Section 6.

  19. RECOMMENDATIONS • Enhance capabilities of the MARS Model or develop an improved alternative to conduct probabilistic analysis of sub-area reliability. • Continue close coordination of planning efforts with the TEAC and the information exchange with the Transmission Owners, NEPOOL Participants, and Neighboring Systems.

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