NEW YORK (Standard&Poor's) Jan. 5, 2011--Standard&Poor's Ratings Services has assigned its 'AA-' rating to Seattle, Wash.'s municipal light and power improvement and refunding revenue bonds, series 2011A; and improvement revenue bonds, series 2011B. At the same time, Standard&Poor's affirmed its 'AA-' rating on the system's (doing business as Seattle City Light [SCL]) parity lien debt and its 'AA-' underlying rating on the debt. The outlook is stable. The 2011B bonds will be sold as New Clean Renewable Energy Bonds (CREBs). "The rating reflects our opinion of a low-cost hydro-based generation portfolio that can meet demand under most water conditions, including the current low ones, a strong and diverse customer base, good financial management, and
