The Council is developing the next Northwest Power Plan to ensure an adequate, efficient, economical, and reliable power supply for the region.

The Council is developing its next power plan. Throughout the process, we’ll keep you informed on important milestones, the methods and analysis, and other work as it becomes available.

Scenario analysis

Scenario analysis is one way to account for uncertainty in the power planning landscape by evaluating the potential impacts of changing key assumptions. The Ninth Plan will have two priority scenarios with a range of sensitivities to be explored:

  1. New Resource and Transmission Risk (and video, Feb 2025)
    Broad scenario to explore uncertainty around resource availability, resource costs, and transmission availability
  2. Hydro Operations Flexibility
    Exploring the implication for resource needs with varying hydro operations impacting the flexibility of the hydro system (under development, expected later in 2025)

Methodology primers

These primers summarize planned methodologies for developing the Ninth Plan.

Ninth Plan elements and inputs

More resources

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