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How can I find forecasted capacity additions for a specific ISO (e.g., MISO)?

Steps to extract capacity additions data from Wood Mackenzie’s North America Power Service

Krishna Sharma avatar
Written by Krishna Sharma
Updated over 3 months ago

You can locate forecasted capacity additions by using the Supply dashboard in the North America Power Tool.
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Steps:

  1. In the Supply dashboard, filter by your ISO of interest (e.g., Midcontinent ISO).

  2. Review the cumulative installation view.

  3. To calculate annual capacity additions, apply the following:

    • Year X capacity – Year (X-1) capacity + Retirements = Capacity additions for Year X.

  4. Retirements data can be found in Supply > Retirements.

Alternative resource:

All relevant data, including capacity additions and retirements, is also available in the Supply-Demand Excel Workbook: Wood Mackenzie | North America power markets: Strategic Planning Outlook Base Case 2025

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