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National Grid Electricity System Operator Ltd -- Moody's assigns Baa1 rating to National Grid Electricity System Operator

Moody's Investors Service ("Moody's") has today assigned a Baa1 issuer rating to National Grid Electricity System Operator Ltd (NG ESO), which will operate the electricity transmission system in Great Britain from 1 April 2019. NG ESO, a wholly-owned subsidiary of National Grid Plc (National Grid, Baa1 stable) will take over the system operation responsibilities of National Grid Electricity Transmission plc (NGET, A3 stable) on that date.