This Gallery provides access to key data sets that were utilized in the Northern California and Southern Oregon Offshore Wind Transmission Study published in October 2023 by the Schatz Energy Research Center at Cal Poly Humboldt. The full report is available at: http://schatzcenter.org/pubs/2023-OSW-R2.pdf . Additional appendices are available at: http://schatzcenter.org/pubs/2023-OSW-R3.pdf .

This study examined the development of floating offshore wind energy resources located off the coasts of northern California and southern Oregon ranging from 7.2 GW to 25.8 GW of cumulative capacity. The study examined numerous transmission alternatives that could accommodate the stated range of OSW development and assessed the estimated costs and benefits associated with each alternative. The economic costs and benefits were determined and compared via power flow analysis and production cost modeling. Considerations for transmission technologies and configurations included: onshore and offshore transmission routes, high-voltage AC and high-voltage DC technologies, radial connections, long-distance undersea HVDC cables, offshore meshed networks with shared HVAC or shared HVDC buses, and phase-shifting transformers to serve small coastal communities with OSW power. A high level assessment of permitting and environmental challenges was also conducted.