Long-Range Regional Transmission Expansion Evaluation

Location: Little Rock, Ark.

Client: Southwest Power Pool

Completion Date: 2011

Burns & McDonnell was retained by Southwest Power Pool (SPP) to provide staff augmentation and professional consulting in a long-range regional transmission expansion study. The purpose of the study was to assist SPP with the evaluation of new transmission projects as part of a regular study series performed for SPP member utility stakeholders.

The study utilized a security constrained economic dispatch model to evaluate system congestion. Transmission projects were evaluated based on reliability, economic and other factors. Cost and benefits were measured at the regional level.

  • Security constrained economic dispatch
  • Transmission congestion evaluation
  • Economic transmission evaluation

Southwest Power Pool is one of eight regional transmission organizations designated by the North American Electric Reliability Corp. (NERC). SPP is responsible for reliable transmission coordination across nine states in the south and central United States. SPP is mandated by its member utilities to provide a long-range transmission expansion plan through a process called Integrated Transmission Planning (ITP). The ITP looks at long-range transmission expansion to maintain grid reliability.

  • 10-year-out assessment
  • Deterministic transmission expansion plan developed under five future scenarios