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Violation Tracker Current Parent Company Summary

Current Parent Company Name: National Grid
Ownership Structure: publicly traded (ticker symbol LSE: NG)
Headquartered in: United Kingdom
Major Industry: utilities and power generation
Specific Industry: utilities
Penalty total since 2000: $148,111,957
Number of records: 72
Top 5 Offense Groups (Groups Defined)Penalty TotalNumber of Records
consumer-protection-related offenses$77,875,0009
safety-related offenses$30,794,14346
environment-related offenses$14,130,31410
competition-related offenses$12,000,0001
employment-related offenses$7,312,5005
Top 5 Primary Offense TypesPenalty TotalNumber of Records
privacy violation$38,500,0001
utility safety violation$30,486,00023
utility service violation$20,675,0003
consumer protection violation$18,700,0005
environmental violation$13,969,7147
Notes: Parent-subsidiary linkages are based on relationships current as of the latest revision listed in the Update Log, which may vary from what was the case when a violation occurred. The penalty totals are adjusted to account for the fact that the individual entries below may include both agency records and settlement announcements for the same case; or else a penalty covering multiple locations may be listed in the individual records for each of the facilities. The totals are also adjusted to reflect cases in which federal and state or local agencies cooperated and issued separate announcements of the outcome. Duplicate or overlapping penalty amounts are marked with an asterisk in the list below.

Links: For a summary of this company's regulatory penalties in more than 50 other countries, see its Violation Tracker Global summary page here.

Subsidy Tracker data on financial assistance to this company by federal, state and local government agencies can be found here.

Individual Penalty Records:

Click on the company or penalty amount for more information on each case.

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CompanyPrimary Offense TypeYearAgencyPenalty Amount sort icon
National Grid USAprivacy violation2022private lawsuit-federal$38,500,000
National Gridutility safety violation2021NY-PSC$21,000,000
National Gridutility service violation2012MA-DPU$18,725,000
KeySpan Corporationprice-fixing or anti-competitive practices2010DOJ_ANTITRUST$12,000,000
Niagara Mohawk Power Corp.environmental violation2005NY-AG$8,500,000
National Gridconsumer protection violation2009MA-AG$8,000,000
National Gridconsumer protection violation2018MA-AG$7,000,000
National Grid USAFalse Claims Act and related2021NY-AG$6,000,000
National Gridenvironmental violation2023EPA$5,380,000
National Gridwage and hour violation2013NY-AG$4,800,000
National Gridwage and hour violation2013MA-AG$2,000,000
National Gridutility safety violation2018NY-PSC$1,980,000
National Gridutility safety violation2024NY-PSC$1,700,000
National Gridconsumer protection violation2016MA-AG$1,500,000
National Gridutility safety violation2016MA-DPU$1,250,000
National Gridconsumer protection violation2011MA-AG$1,200,000
Niagara Mohawk Power Corp dba National Gridutility service violation2024NY-PSC$1,200,000
National Gridconsumer protection violation2011MA-AG$1,000,000
Boston Gas Company and Colonial Gas Company d/b/a National Gridutility safety violation2020MA-DPU$1,000,000
Boston Gas Company and Colonial Gas Company d/b/a National Gridutility safety violation2020MA-DPU$1,000,000
National Gridutility service violation2019MA-DPU$750,000
Boston Gas Company d/b/a National Gridutility safety violation2020MA-DPU$700,000
National Gridutility safety violation2016NY-PSC$500,000
National Gridutility safety violation2023NY-PSC$500,000
National Gridwage and hour violation2013MA-AG$270,000
National Gridlabor relations violation2009NLRB$220,000
Boston Gas Company d/b/a National Gridutility safety violation2020MA-DPU$200,000
NATIONAL GRID LNG L.P.pipeline safety violation2007PHMSA$108,000
Boston Gas Company d/b/a National Gridutility safety violation2020MA-DPU$75,000
Boston Gas Company d/b/a National Gridutility safety violation2020MA-DPU$75,000
Boston Gas Company d/b/a National Gridutility safety violation2020MA-DPU$75,000
Boston Gas Company and Colonial Gas Company d/b/a National Gridutility safety violation2020MA-DPU$75,000
Boston Gas Company d/b/a National Gridutility safety violation2019MA-DPU$75,000
Boston Gas Company d/b/a National Gridutility safety violation2020MA-DPU$50,000
Boston Gas Company d/b/a National Gridutility safety violation2020MA-DPU$50,000
Boston Gas Company d/b/a National Gridutility safety violation2020MA-DPU$50,000
Keyspan Gas East Corporation dba National Gridenvironmental violation2020USAO$49,577
Keyspan Energyutility safety violation2006NH-PUC$45,000
MASSACHUSETTS ELECTRIC COMPANYworkplace safety or health violation2022OSHA$43,506
NATIONAL GRID LNG L.P.pipeline safety violation2009PHMSA$41,000
New England Gas Companyutility safety violation2003RI-PUC$35,000
NIAGARA MOHAWK POWER CORPORATIONworkplace safety or health violation2024OSHA$32,839
New England Gas Companyutility safety violation2006RI-PUC$31,000
NATIONAL GRID ELECTRIC SERVICES LLCworkplace safety or health violation2018OSHA$24,020
National Grid, formerly New England Gas Companylabor relations violation2006NLRB$22,500
NATIONAL GRIDworkplace safety or health violation2010OSHA$21,750
NATIONAL GRID TRANSMISSION SERVICESworkplace safety or health violation2012OSHA$18,000
KEYSPAN ENERGY DELIVERY NEW ENGLANDenvironmental violation2005MA-ENV$15,000
NATIONAL GRID GENERATION LLCworkplace safety or health violation2008OSHA$15,000
National Gridutility safety violation2008NH-PUC$14,000
NATIONAL GRID USAworkplace safety or health violation2018OSHA$13,260
NATIONAL GRIDworkplace safety or health violation2019OSHA$13,127
MASSACHUSETTS ELECTRIC COMPANYworkplace safety or health violation2017OSHA$12,675
KEYSPAN ENERGY DELIVERY NEW ENGLANDenvironmental violation2006MA-ENV$12,560
NATIONAL GRID PLCworkplace safety or health violation2017OSHA$12,500
NATIONAL GRID ELECTRIC SERVICES LLCworkplace safety or health violation2019OSHA$12,313
NATIONAL GRID LNG L.P.pipeline safety violation2006PHMSA$11,600
NATIONAL GRIDworkplace safety or health violation2001OSHA$10,000
MASSACHUSETTS ELECTRICworkplace safety or health violation2001OSHA$10,000
NIAGARA MOHAWK POWER CORPORATIONworkplace safety or health violation2023OSHA$9,375
NATIONAL GRID USA SERVICE COMPANY, INC.workplace safety or health violation2001OSHA$9,000
NATIONAL GRIDworkplace safety or health violation2017OSHA$9,000
BOSTON GAS COMPANYworkplace safety or health violation2022OSHA$7,251
MASSACHUSETTS ELECTRIC COMPANYworkplace safety or health violation2021OSHA$6,827
Niagara Mohawk Power Corp d/b/a National Gridenvironmental violation2023EPA$6,542
MASSACHUSETTS ELECTRICworkplace safety or health violation2001OSHA$6,300
Niagara Mohawk Power Corporationenvironmental violation2011EPA$6,035
Keyspan Energyutility safety violation2006NH-PUC$6,000
KEYSPAN ENERGY DELIVERYworkplace safety or health violation2006OSHA$6,000
KEYSPAN ENERGY CORP.workplace safety or health violation2006OSHA$5,400
KEYSPAN ENERGY CORP.workplace safety or health violation2003OSHA$5,000
MASSACHUSETTS ELECTRIC COMPANYworkplace safety or health violation2003OSHA$5,000
(*): Penalty amounts marked by an asterisk are ones announced by more than one agency. Parent penalty totals are adjusted to avoid double-counting.