SAN FRANCISCO (Standard&Poor's) Aug. 2, 2012--Standard&Poor's Ratings Services assigned its 'AA-' long-term rating to the Southern California Public Power Authority's $79.7 million series 2012A and $16.4 million series 2012B Mead-Adelanto Project revenue bonds and $23.8 million series 2012A and $5.1 million series 2012B Mead-Phoenix Project revenue bonds. The outlook is stable. "The rating reflects our view of the credit quality of the nine California municipal electric systems, the unlimited step-up nature of the take-or-pay transmission service contracts, and the projects' importance to the participant cities," said Standard&Poor's credit analyst Paul Dyson. The bond proceeds will: Refund the authority's series 2008A Mead-Adelanto Project revenue bonds, series 2008B (taxable) Mead-Adelanto Project revenue bonds, series 2008A Mead-Phoenix