ESB Credit Ratings The credit ratings allocated to ESB by the Rating Agencies are as follows; Ratings Reports Standard & Poor's W: www.standardandpoors.com S&P ESB Credit Opinion June 2020 (PDF | 414.1 KB) Moody's W: www.moodys.com Moody's Credit Opinion ESB May 2021 (PDF | 1.46 MB) Moody's ESB Price Review 5 determination (PDF | 1.35 MB)
