Draft Wind Techno-economic Exclusions for 2026-2027 IRP

<p>The wind techno-economic exclusion layer has been updated for proposed use in the current 2026-2027 IRP cycle. The<a target='_blank' href='https://caenergy.maps.arcgis.com/home/item.html?id=b99eaaf368c54953844b578a92b0cd63' rel='nofollow ugc noopener noreferrer'> previous version</a> was developed in 2023. Two changes are reflected in this current draft update:<span>&nbsp;</span></p><ol><li>Low wind resource quality is defined by wind speeds less than 6.5 m/s according to Global Wind Atlas 100-meter hub height data. This screen replaces the previous wind quality screen of capacity factor greater than 20% based on work by Lopez et al. (2012).¹&nbsp;</li><li><p>Existing project footprints are no longer reflected in this layer, but are instead incorporated into the base exclusions.&nbsp;</p><p>&nbsp;</p></li></ol><p>More information is found in the <a target='_blank' href='https://www.cpuc.ca.gov/-/media/cpuc-website/divisions/energy-division/documents/integrated-resource-plan-and-long-term-procurement-plan-irp-ltpp/2024-2026-irp-cycle-events-and-materials/assumptions-for-the-2026-2027-tpp/final_2025_busbar_mappingmag_presentation_cec.pdf' rel='nofollow ugc noopener noreferrer'>CEC </a>and <a target='_blank' href='https://www.cpuc.ca.gov/-/media/cpuc-website/divisions/energy-division/documents/integrated-resource-plan-and-long-term-procurement-plan-irp-ltpp/2024-2026-irp-cycle-events-and-materials/assumptions-for-the-2026-2027-tpp/webinar_slides_proposedupdates_busbarmapping_20250819.pdf' rel='nofollow ugc noopener noreferrer'>CPUC </a>presentations from the August 19 webinar, as well as the <a target='_blank' href='https://www.energy.ca.gov/data-reports/california-energy-planning-library/land-use-screens' rel='nofollow ugc noopener noreferrer'>2023 Land Use Screens Staff Report in the CEC Energy Planning Library</a>.<span style='font-family:&quot;Arial&quot;,sans-serif;'> </span></p><p>&nbsp;</p><p><span style='font-family:&quot;Arial&quot;,sans-serif; font-size:12px;'>1. Lopez, A. et. al. “U.S. Renewable Energy Technical Potentials: A GIS-Based Analysis,” 2012. </span><a target='_blank' href='https://www.nrel.gov/docs/fy12osti/51946.pdf' rel='nofollow ugc noopener noreferrer'><span style='font-family:&quot;Arial&quot;,sans-serif; font-size:12px;'>https://www.nrel.gov/docs/fy12osti/51946.pdf</span></a></p>