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Optimizing Switchable Generation Resource Treatment in Grid Planning Studies

Understand the importance of reporting switchable generation resources to ERCOT, implications of faulty assumptions, and solutions to avoid reliability and economic issues in planning studies.

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Optimizing Switchable Generation Resource Treatment in Grid Planning Studies

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  1. Switchable Generation Resource Treatment in Planning Studies Jeff Billo RPG

  2. Issue • Resource Entities must report to ERCOT by April 1 if Switchable Generation Resources have commitment in adjacent grid for months of July and August of that year (Protocol 16.5.4) • Per Protocol 1.3.1.1 (w) this information is confidential • SSWG base cases and ERCOT Planning studies typically assume Switchable Generation Resources are always supplying their power to ERCOT • If this assumption is faulty it could lead to the following issues: • Reliability – There may be transmission reliability constraints that the resource resolves that were not planned for with the resource (underbuild) • Economic – There may be transmission projects planned to resolve system congestion that are not necessary without the resource (overbuild) • Must also consider resources that are not switchable today but could become switchable in the future RPG

  3. Possible Solutions RPG

  4. Questions? March 12, 2010 RPG

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