Review of the Pacific NW Resource Adequacy Assessment Methodology

1
Review of the Pacific NW Resource Adequacy
Assessment Methodology

• Proposed Contract with
• Power Systems Research, Incorporated
• Resource Adequacy Technical Committee
• October 16, 2009

2
Topics for the PSRI Contract

• Probabilistic Resource Adequacy Metrics
• Adequacy Assessment and Long-term Resource
  Planning
• Pacific NW Hydro System Simulation

3
Probabilistic Resource Adequacy Metrics

• Inventory of probabilistic metrics
• Appropriate metrics for the Northwest
• Value of including magnitude
• PSRI recommended metric for the Northwest
• Annual or seasonal assessments?
• Review of BPAs approach
• Aid in assessing appropriate sustained-peak
  period duration

4
Adequacy and Resource Planning

• How other utilities use adequacy standards to
  develop long-term resource plans
• Use of deterministic metrics in planning models
• Recommendation on the best way to incorporate
  adequacy standards into long-term planning

5
Review of Hydro Simulation

• Monthly hydro dispatch (using hydro blocks)
• Using Energy vs. Capacity curves for hourly
  dispatch
• Using the Trapezoidal Model to create Energy vs.
  Capacity curves
• Recommendation for other methods