Decision on Palermo-Rio Oso 115 kV Line Re-construction Project Gary DeShazo, Director of Regional Transmission - North Board of Governors Meeting General Session May 21-23, 2008
Management is requesting approval of the Management is requesting approval of the Palermo- -Rio Rio Oso Oso 115kV line re 115kV line re- -construction project construction project Palermo This project is needed to meet federal reliability standards � Standards are mandatory under the Federal Energy Regulatory Commission (“FERC”) Estimated cost of $55M Will required a Permit to Construct from the California Public Utilities Commission All components need to be in-service by June 2010 2
The project is located in PG&E’ ’s Yuba s Yuba- -Sutter Sutter The project is located in PG&E service territory service territory 3
This one- -line diagram shows how the project is line diagram shows how the project is This one integrated into the system integrated into the system R econstruct approxim ately 40 m iles of the Palerm o-East N icolaus 115 kV line and 30 m iles of the Palerm o Palerm o-Bogue 115 kV line w ith 1113 A A C 115 kV conductor N O Pease H oncut 60 kV < 397 A l < 3/0 Cu 3/0 Cu N O 84 M V A East M arysville N O O livehurst B ogue 3/0 Cu East N icolaus G reenleaf I 336 A C SR < 3/0 Cu < 84 M V A Rio O so 4
The project area is impacted by load growth and The project area is impacted by load growth and “interconnected interconnected” ” system needs system needs “ Long-term planning investigation initiated by the ISO in 2003 Load growth area of 2.8% annually “Interconnected” system needs � Parallel flow from California-Oregon Intertie (“COI”) flow � Northern California hydro Six other alternatives were assessed The preferred alternative selected by the CAISO: � Produces the required level of reliability � Provides the highest load-serving capability for the least cost � Least environmental impact � Best overall benefits (cost-technical-environmental) 5
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