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Find out how we're working to keep the lights on in Great Britain throughout COVID-19.

Credit ratings

Senior unsecured / short term rating

National Grid's Treasury team maintain frequent contact with Moody's Investor Services (Moody's)Standard and Poor's Rating Services (S&P) and Fitch Ratings and ensure that the agencies are kept aware of significant developments in the Group.

Senior members of National Grid's management team also meet with these agencies formally, usually at least once in each fiscal year, to discuss the anticipated performance of the Group.

  Moody’s S&P Fitch
Lead Analysts Philip Cope
+44 20 7772 5229

Matan Benjamin
+44 20 7176 0106

Beatrice de Taisne
+44 20 7176 3938

Ana Gaspar 
+44 20 3530 1601

Hugh Shim
+44 20 3530 1724

National Grid plc Baa1* / P2 BBB+* / A2 BBB+* / F2
National Grid Holdings One plc1 NR A-* / A2 NR
National Grid Electricity Transmission plc1 A3* / P2 A-* / A2 A* / F2
National Grid Electricity System Operator Ltd A3*2 / --- NR NR
National Grid Gas Holdings Limited1 NR A-* / --- A* / ---
National Grid Gas plc1 A3* / P2 A-* / A2 A* / F2
National Grid North America Inc. (formerly NGHI) Baa1* / P2 BBB+* / A2 NR
National Grid USA Baa1* / P2 BBB+* / A2 NR
Massachusetts Electric Co.1 A3* / P2 A-* / A2 NR
The Narragansett Electric Co.1 A3* / --- A-* / --- NR
New England Power Co.1 A3 / P2 A-* / A2 NR
Niagara Mohawk Power Corporation A3* / --- A-* / A2 NR
The Brooklyn Union Gas Company (KEDNY) Baa1 / --- A-* / --- A- / ---
KeySpan Gas East Corporation (KEDLI) A3* / --- A-* / --- A- / ---
Boston Gas Company1 A3* / --- A-* / --- NR
National Grid Generation LLC1 Baa1*2 / --- A-* / --- NR

1Company given Corporate Credit Rating by S&P

2Issuer Rating

* Negative outlook

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