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John Pettigrew

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John Pettigrew
BornOctober 1968
NationalityBritish
EducationCardiff University
OccupationBusiness executive, engineer
CompanyNational Grid plc
TitleChief Executive (2016 to 2025)

John Mark Pettigrew CBE (born October 1968) is a British business executive who was chief executive of National Grid plc, the electricity and gas network company that operates in the United Kingdom and the north-eastern United States, from April 1, 2016, to November 16, 2025.[1][2] He joined National Grid as a graduate trainee in 1991 and spent his entire executive career with the company, holding engineering and operating roles in Britain and the United States before joining the board in 2014 and succeeding Steve Holliday as chief executive.[3]

Pettigrew's nine and a half years as chief executive were marked by a series of portfolio changes that moved the company away from gas and towards electricity networks. These included the sale of the British gas distribution business that became Cadent, the £7.8 billion acquisition of Western Power Distribution in 2021, the sale of the Rhode Island utility Narragansett Electric, the sale of the British gas transmission business, the transfer of the Electricity System Operator to public ownership, and the disposal of National Grid Renewables and the Grain LNG terminal.[4][5] In May 2024 he announced a £60 billion five-year investment plan, funded in part by a £7 billion rights issue.[6]

His final year in office included the fire at the company's North Hyde substation in March 2025, which led to the closure of Heathrow Airport for a day and a subsequent investigation by the energy regulator Ofgem.[7] National Grid announced on May 1, 2025, that Pettigrew would retire and be succeeded by Zoë Yujnovich, formerly of Shell plc.[8]

Since retiring as chief executive, Pettigrew has served as a non-executive director of BAE Systems and, as of July 2026, remained senior independent director of Rentokil Initial, a board he joined in January 2018. As of November 2026 he is due to join the board of SSE plc as a non-executive director on December 1, 2026.[9][10] He was appointed a Commander of the Order of the British Empire in the 2026 New Year Honours for services to energy.[11]

Early life and education

Companies House records give Pettigrew's date of birth as October 1968 and his nationality as British.[1] He grew up in Pontypridd, near Cardiff; the Telegraph described his childhood home as a village at the edge of the Welsh valleys. In a 2023 interview with The Daily Telegraph he recalled being told by his parents to switch off the lights whenever he left a room.[12] The Evening Standard described him in 2015 as a "rugby-loving Welshman".[13]

Pettigrew studied economics at Cardiff University and joined the company after graduating.[13] He later said that his choice of degree was his biggest career mistake: "My degree was in economics. It took me a while to realise I'm an engineer at heart. I should have done engineering."[12] The Telegraph profile also listed the London School of Economics and Harvard among his places of education, without giving details of the programmes.[12] Rentokil Initial's board biography refers to his "strong economic background" and his "engineering leadership experience".[9]

Career

Early career (1991 to 2007)

Pettigrew joined the company in 1991 as a graduate trainee, shortly after the company was privatised. He later recalled a starting salary of £14,000 a year and a single shared computer in the office.[12] National Grid's 2023 annual report described him as having joined "as a graduate engineer".[14] He held a variety of management roles before becoming Director of Engineering for the UK business in 2003.[3][8]

United States and UK operations (2007 to 2014)

From 2007 to 2010 Pettigrew was chief operating officer and executive vice president of the group's US electricity distribution and generation business.[3] When he was appointed chief executive in 2015, National Grid's chairman, Sir Peter Gershon, said Pettigrew had "played a pivotal role in introducing improvements and demonstrating strong leadership within both the US Electricity Transmission and Distribution businesses".[3] Pettigrew later told the Telegraph that he still spent much of his time in the United States as chief executive.[12]

Pettigrew returned to Britain as chief operating officer of UK Gas Distribution from 2010 to 2012, and was UK chief operating officer from 2012 to 2014.[3] Gershon credited Pettigrew as "the architect of National Grid's strategy for ensuring the delivery and out performance under the UK regulatory regime, RIIO".[3] John Musk, an analyst at RBC Capital Markets, used similar language when Pettigrew's promotion was announced, telling the Telegraph that he had been "the architect" of the company's approach to RIIO.[15]

Executive Director, UK (2014 to 2016)

Pettigrew joined the plc board as Executive Director, UK on April 1, 2014.[16] The company's 2013/14 annual report said his appointment "had been envisaged for some time" and that "his executive career with the Company has been guided to make sure that he has experience of multiple parts of the business". An external consultant assessed his readiness for the board, and he was interviewed individually by Gershon and the non-executive directors Mark Williamson, Jonathan Dawson and Ruth Kelly before the appointment was approved.[16] He also sat on the company's executive committee as Executive Director, UK.[16]

Chief executive (2016 to 2025)

Appointment

On November 3, 2015, the company announced that Steve Holliday, chief executive since 2006, would retire and that Pettigrew would succeed him.[3] Gershon said the board's nominations committee had been "unanimous in its support for John given his experience covering our UK and US operations".[3] Both Pettigrew and Holliday were excluded from the ad hoc board meeting in November 2015 that considered the succession, because they were conflicted.[17]

Press coverage emphasised his long service. The Evening Standard called him a "lifer" and noted that he joined Sir Andrew Witty as one of the few FTSE 100 chief executives to have risen through a company's graduate training programme.[13] Peter Atherton, an analyst at Jefferies, told the Telegraph that the appointment was "clearly intended to signal continuity", but raised concerns about the "relative lack of experience of Mr Pettigrew", who had been on the board for about a year.[15] Atherton said the main challenges facing the new chief executive would be "the long-term underperformance of the US regulated businesses", "the difficult and highly politicised UK energy market" and the need to "resist all temptations to revert to the expansionary capital-destroying strategies of the mid-2000s".[15] The Guardian reported that one of his main tasks would be to prepare the British power network to connect a new generation of nuclear power stations, including Hinkley Point C.[18]

Pettigrew's starting salary as chief executive was £825,000, set below Holliday's with the stated intention of moving it "towards market level by way of future phased increases". Because the chief executive's role was based in London rather than at the company's Warwick offices, he was required to relocate.[3][18] Pettigrew became chief executive on April 1, 2016, and joined the board's finance committee on the same date.[19]

First phase: gas distribution sale and capital return (2016 to 2019)

Before Pettigrew took over, the board had begun a process to sell a majority stake in the UK gas distribution business.[17] On December 8, 2016, he announced the sale of a 61 percent stake to a consortium led by Macquarie Infrastructure and Real Assets, in a deal that valued the business at an enterprise value of about £13.8 billion. National Grid received £3.6 billion in cash plus £1.8 billion from additional debt financing, and said it would return £4 billion to shareholders through a special dividend and share buy-backs. It also made a voluntary distribution of £150 million for the benefit of energy consumers.[4] Pettigrew said that on completion "National Grid's portfolio will be rebalanced towards higher growth assets, whilst maintaining a strong balance sheet and supporting our sustainable dividend policy."[4] The business became Cadent Gas. In November 2018 National Grid exercised its options to sell its remaining 39 percent stake, a sale expected to bring in about £2 billion and complete in June 2019.[20]

In the same period the Electricity System Operator was legally separated from the rest of the group's British business with effect from April 1, 2019.[20] By 2019 the company's corporate venture capital unit, National Grid Partners, was investing in emerging technology start-ups; by 2025 it had invested more than $500 million and committed a further $100 million to start-ups in artificial intelligence.[20][21]

Second phase: the pivot to electricity (2020 to 2023)

On March 18, 2021, Pettigrew announced that the group would buy Western Power Distribution, Britain's largest electricity distribution business, from PPL Corporation for an equity value of £7.8 billion. At the same time it agreed to sell the Narragansett Electric Company in Rhode Island to PPL for US$3.8 billion (£2.7 billion), and said it would start a process to sell a majority stake in National Grid Gas, owner of Britain's gas transmission system.[5] The company said the deals would raise the share of its assets in electricity from about 60 percent to about 70 percent.[5] Pettigrew called the transactions "transformational for our UK portfolio" and described the purchase of Western Power Distribution as "a one-off opportunity to acquire a significant scale position in UK electricity distribution".[5] The business was renamed National Grid Electricity Distribution.

The 2023 annual report credited Pettigrew with progressing this "strategic pivot", listing the acquisition of National Grid Electricity Distribution, the sale of a majority stake in the UK Gas Transmission and Metering business and the sale of the Rhode Island business.[14] The company sold its remaining 20 percent interest in National Gas Transmission on September 26, 2024, for £686 million.[21]

Third phase: the £60 billion plan (2024 to 2025)

On May 23, 2024, alongside its annual results, Pettigrew announced a five-year plan to invest about £60 billion in the period to March 2029, which it said was nearly double the level of the previous five years, together with a fully underwritten £7 billion rights issue.[6] Pettigrew called it "a defining moment for National Grid" and said governments and regulators were "moving with increased urgency to attract the levels of investment required to meet their net zero ambitions".[6] The company also said it would sell Grain LNG, its liquefied natural gas import terminal in Kent, and National Grid Renewables, its US onshore renewables business, in order to concentrate on networks.[6]

The group sold the Electricity System Operator to the UK government during 2024/25 for total consideration of £673 million, after which the function passed to the new National Energy System Operator.[21] National Grid Renewables was sold to Brookfield for $1.7 billion, a sale completed in May 2025.[21][22] On August 14, 2025, National Grid agreed to sell Grain LNG to a consortium of Centrica and Energy Capital Partners for total proceeds of about £1.66 billion. Pettigrew described it as "another successful step in delivering National Grid's previously communicated strategy to streamline our business and focus on networks".[22] The sale was completed in November 2025.[2]

In his last annual report as chief executive, Pettigrew pointed to the 17 transmission projects under the government's Accelerated Strategic Transmission Investment framework, a £35 billion plan for the transmission network in England and Wales submitted to Ofgem, a £9 billion Great Grid Partnership with delivery partners and a £59 billion supply framework for high-voltage direct current equipment. In the United States he cited the $4 billion Upstate Upgrade in New York and a $2 billion electric grid modernisation plan in Massachusetts.[21]

Succession and retirement

On May 1, 2025, the company announced that Pettigrew had "decided to retire" after almost 10 years as chief executive, and that Zoë Yujnovich would join the board on September 1, 2025, and take over on November 17, 2025.[8] Pettigrew said: "It has been an immense honour for me to lead the company I joined as a graduate. All that I have achieved has only been possible because of the many talented people I have had the privilege to work with and learn from."[8] The chair, Paula Rosput Reynolds, said his leadership had driven "the Group's strategic transformation".[8]

Pettigrew left the board on November 16, 2025.[2] His individual objectives for his final part-year included contributing to the outcome of the RIIO-T3 price control, progressing the sale of non-core assets and managing the handover, which included introducing his successor to key stakeholders and transferring industry leadership responsibilities. The remuneration committee assessed his performance against those objectives at 80 percent.[2] In October 2025, shortly before he stepped down, he discussed the investment plan, rising electricity demand from data centres and the lessons of the Heathrow and Spanish power outages in an interview with Michael Liebreich on the Cleaning Up podcast.[23]

Leadership and management style

Pettigrew was widely described as a company insider. The company's board said in 2014 that it had planned his development across several parts of the business before putting him on the board.[16] When he was appointed chief executive, RBC's John Musk said he had been "quite clearly groomed for the role over the past couple of years".[15] In 2023 the Telegraph called him "the ultimate National Grid lifer" and reported that the security pass on his lanyard still carried a faded photograph of his younger self.[12]

Asked to name a phrase he overused, Pettigrew gave "Reasonably unreasonable", explaining: "I'm always thinking what more we can do to get the best outcome for all our stakeholders." He gave his best piece of advice as "Enjoy the journey, not just the destination."[12]

Much of Pettigrew's public work as chief executive went into arguing for faster grid investment. His 2025 board biography said Pettigrew "engages widely with governments, policy makers and other stakeholders, helping to shape energy policy".[21] In 2023 he asked communities to accept new pylons and cables as a form of civic duty: "People are going to be asked to host infrastructure, and in a way they're doing that on behalf of UK plc."[12] Renewable energy developers had complained of waits of up to 13 years for grid connections. Pettigrew answered that connections were handled on a first-come, first-served basis and pressed Ofgem to allow anticipatory investment: "We can't start any work on the network until someone signs a connection agreement; if we were able to do anticipatory investment we could get ahead of the curve."[12]

Pettigrew also kept up a political dialogue across parties. Before the 2024 general election he said he had met Keir Starmer and other party leaders. The Telegraph noted that in 2019 the then Labour leader Jeremy Corbyn had proposed to renationalise National Grid. Pettigrew said of the later Labour plans: "Ownership hasn't really been a debate we've had; it's more what do we need to do as an enabler to the energy transition."[12]

Major deals and strategic decisions

The main transactions during Pettigrew's tenure as chief executive, as reported by the company, were:

  • UK gas distribution (Cadent), 2016 to 2019: sale of a 61 percent stake at an implied enterprise value of about £13.8 billion, with £4 billion returned to shareholders, followed by the sale of the remaining 39 percent for expected proceeds of about £2 billion.[4][20]
  • Western Power Distribution, 2021: acquisition from PPL for an equity value of £7.8 billion.[5]
  • Narragansett Electric, 2021 to 2022: sale of the Rhode Island business to PPL for US$3.8 billion (£2.7 billion).[5]
  • UK gas transmission (National Gas), 2023 to 2024: sale of a majority stake, then of the remaining 20 percent for £686 million in September 2024.[14][21]
  • Rights issue, 2024: a £7 billion equity raise to support the £60 billion five-year investment plan; net proceeds were £6.8 billion.[6][21]
  • Electricity System Operator, 2024: sale to the UK government for total consideration of £673 million.[21]
  • National Grid Renewables, 2025: sale to Brookfield for $1.7 billion.[21]
  • Grain LNG, 2025: sale to Centrica and Energy Capital Partners for about £1.66 billion.[22]

Financial and market performance

In 2024/25, Pettigrew's last full year as chief executive, the group reported underlying operating profit of £5.4 billion, up 12 percent at constant currency, and record capital investment of £9.85 billion, 20 percent more than the previous year. The company then had a workforce of more than 30,000.[21] Capital investment in 2023/24 had been £8.2 billion, with underlying operating profit and underlying earnings per share both up 6 percent at constant currency.[6]

The 2025/26 annual report stated that a notional holding bought on March 31, 2016, the day before Pettigrew took office, had produced a total shareholder return of 145 percent over 10 years, against 143 percent for the FTSE 100 Index over the same period.[2] In 2023 the Telegraph described the company as a £42 billion FTSE 100 company, with about 70 percent of its assets in electricity and 30 percent in gas.[12]

Remuneration

The company reported the following single total figures of remuneration for Pettigrew as chief executive, in thousands of pounds sterling:[2]

Financial year Single total figure (£000)
2016/17 4,623
2017/18 3,648
2018/19 4,651
2019/20 5,205
2020/21 5,071
2021/22 6,614
2022/23 7,262
2023/24 6,113
2024/25 6,488
2025/26 (to November 16, 2025) 1,993

Pettigrew's base salary was £1,175,000 in 2024/25.[2] In 2023 the Telegraph reported that his pay had been called "gargantuan" by campaigners at a time of high household energy bills. Asked whether he had considered giving some of it up, Pettigrew said: "I'm very well paid as the CEO of National Grid. It is a huge company, both here and in the US. Remuneration is a question for the remuneration committee, which they consider on a regular basis."[12] National Grid's ratio of chief executive pay to median UK employee pay was 85 to 1 in 2024/25.[2]

Under his leaving terms, Pettigrew remained available to the company until April 30, 2026, the end of his 12-month notice period. He received salary, benefits and pension allowance until March 31, 2026, and was treated as a good leaver, so his outstanding long-term performance awards were pro-rated and remain subject to the normal performance conditions and holding periods. Pettigrew opted out of the company's defined benefit pension scheme in 2016; at March 31, 2026, his accrued deferred pension was £116,725 a year.[2]

Board memberships and outside roles

  • Rentokil Initial: Pettigrew was appointed a non-executive director on January 1, 2018, and became senior independent director in May 2019.[1][9] He retained fees of £80,481 from the role in 2022/23 while chief executive of National Grid.[14] In March 2026 he led the search for a successor to the company's chair, Richard Solomons, which ended with the appointment of Thérèse Esperdy, a former senior independent director of National Grid, as chair from September 1, 2026.[24][25] He held 55,000 Rentokil Initial shares in 2022.[26]
  • BAE Systems: It was announced in September 2025 that Pettigrew would join the BAE Systems board as a non-executive director and member of its audit and risk committee from February 23, 2026.[27] Rentokil's 2025 annual report lists the BAE role as his only current external commitment.[9]
  • SSE plc: in July 2026 Rentokil disclosed that he had been appointed a non-executive director of SSE with effect from December 1, 2026.[10]
  • Industry bodies: while chief executive he was a member of the board of the Electric Power Research Institute and of the executive committee of the Edison Electric Institute.[14]
  • Pettigrew was also a director of a holding subsidiary, National Grid Holdings One plc, from 2016 to 2025.[1]

Controversies

Massachusetts gas dispute

In June 2018, during Pettigrew's third year as chief executive, the company put a workforce contingency plan into effect in Massachusetts in response to what it described as a union work stoppage involving 1,250 employees, after a collective bargaining agreement with gas unions expired. The company reported that the agreement was renegotiated in January 2019.[20]

North Hyde substation fire

On March 20, 2025, a fire at National Grid Electricity Transmission's North Hyde substation in Hayes, west London, cut power to Heathrow Airport, which closed on March 21.[7] In his first public comments, Pettigrew told the Financial Times that, although an "unprecedented" fire had knocked out North Hyde, two other substations serving the airport had kept working throughout. "There was no lack of capacity from the substations," he said. "Each substation individually can provide enough power to Heathrow."[28] Sharecast News reported him as saying that the decision to close was "a question for Heathrow".[29] Heathrow replied by citing his remark that he had never seen a transformer failure like it in 30 years in the industry, saying this confirmed that "it would not have been possible for Heathrow to operate uninterrupted".[28]

A review by the National Energy System Operator, commissioned by the government and published in July 2025, found that a "catastrophic failure" on one of the transformer's high-voltage bushings had caused the fire. It reported that high moisture levels had been detected in oil samples in 2018 and that scheduled maintenance at the site had been missed in 2021 and then cancelled each year after that.[7] NESO's chief executive, Fintan Slye, said: "The story of our report really is probably one of missed opportunities." Ofgem opened a formal investigation, and Heathrow said that National Grid "could and should" have prevented the fire and that it was considering legal action. Airlines put the cost of the shutdown at £80 million to £100 million.[7][30] National Grid said it had a "comprehensive asset inspection and maintenance programme" and had since reviewed its oil sampling process and re-tested the resilience of substations serving strategic infrastructure.[7] At Ofgem's request, DNV carried out an independent audit of 20 of the company's substations, which concluded that the company adhered to good asset management practices; Ofgem then asked the company to review five areas for improvement.[31] National Grid's 2025/26 annual report, published after Pettigrew's departure, recorded that NESO had published its final report on November 18, 2025, and that Ofgem's investigation was still ongoing; the maximum penalty for a licence breach is 10 percent of turnover.[2]

Personal life

In 2023 Pettigrew had two daughters.[12] At the time of his appointment as chief executive his home was in Warwick, near the company's offices there, and the company paid relocation expenses for his move to London.[18] Pettigrew told the Telegraph that he relaxed "with family and friends, travel and exercise", and that he kept the thermostat turned down at home, calling it "the right thing to do from an environmental [and] an affordability perspective".[12]

Recognition

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 "John Mark PETTIGREW: personal appointments". Companies House. Retrieved November 12, 2026.
  2. ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 "Annual Report and Accounts 2025/26 (Form 20-F)". U.S. Securities and Exchange Commission (EDGAR). June 3, 2026. Retrieved November 12, 2026.
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 "John Pettigrew to succeed Steve Holliday as Chief Executive of National Grid". SEC EDGAR, Form 6-K, Exhibit 99.1. November 3, 2015. Retrieved November 12, 2026.
  4. ↑ 4.0 4.1 4.2 4.3 "Sale of majority interest in UK gas distribution business; proposed one-off £4 billion return of capital to shareholders". SEC EDGAR, Form 6-K, Exhibit 99.1. December 8, 2016. Retrieved November 12, 2026.
  5. ↑ 5.0 5.1 5.2 5.3 5.4 5.5 "Proposed acquisition of Western Power Distribution and strategic portfolio repositioning". SEC EDGAR, Form 6-K, Exhibit 99.1. March 18, 2021. Retrieved November 12, 2026.
  6. ↑ 6.0 6.1 6.2 6.3 6.4 6.5 "2023/24 Full Year Results". SEC EDGAR, Form 6-K. May 23, 2024. Retrieved November 12, 2026.
  7. ↑ 7.0 7.1 7.2 7.3 7.4 "Heathrow: Fault that caused power outage was ignored for seven years". July 2, 2025. Retrieved November 12, 2026.
  8. ↑ 8.0 8.1 8.2 8.3 8.4 "Chief Executive Succession Plan". SEC EDGAR, Form 6-K, Exhibit 99.1. May 1, 2025. Retrieved November 12, 2026.
  9. ↑ 9.0 9.1 9.2 9.3 "Rentokil Initial plc Annual Report 2025". Rentokil Initial plc (Form 6-K, Exhibit 99.1). March 25, 2026. Retrieved November 12, 2026.
  10. ↑ 10.0 10.1 "Director Declaration". Rentokil Initial plc (Form 6-K). July 16, 2026. Retrieved November 12, 2026.
  11. ↑ 11.0 11.1 "Order of the British Empire: John PETTIGREW". The London Gazette, issue 64940. December 29, 2025. Retrieved November 12, 2026.
  12. ↑ 12.00 12.01 12.02 12.03 12.04 12.05 12.06 12.07 12.08 12.09 12.10 12.11 12.12 12.13 Lawson, Alex."John Pettigrew: National Grid chief on why the public must not block the charge to net zero". May 2, 2023. Retrieved November 12, 2026.
  13. ↑ 13.0 13.1 13.2 Bow, Michael."National Grid promotes lifer John Pettigrew to chief executive". November 3, 2015. Retrieved November 12, 2026.
  14. ↑ 14.0 14.1 14.2 14.3 14.4 "Annual Report and Accounts 2022/23 (Form 20-F)". U.S. Securities and Exchange Commission (EDGAR). June 6, 2023. Retrieved November 12, 2026.
  15. ↑ 15.0 15.1 15.2 15.3 "National Grid appoints John Pettigrew to succeed Steve Holliday as chief executive". November 3, 2015. Retrieved November 12, 2026.
  16. ↑ 16.0 16.1 16.2 16.3 "Annual Report and Accounts 2013/14 (Form 20-F)". U.S. Securities and Exchange Commission (EDGAR). June 5, 2014. Retrieved November 12, 2026.
  17. ↑ 17.0 17.1 17.2 "Annual Report and Accounts 2015/16 (Form 20-F)". U.S. Securities and Exchange Commission (EDGAR). June 7, 2016. Retrieved November 12, 2026.
  18. ↑ 18.0 18.1 18.2 "National Grid chief to step down". November 3, 2015. Retrieved November 12, 2026.
  19. ↑ "Director Responsibilities". SEC EDGAR, Form 6-K, Exhibit 99.1. April 1, 2016. Retrieved November 12, 2026.
  20. ↑ 20.0 20.1 20.2 20.3 20.4 "Annual Report and Accounts 2018/19 (Form 20-F)". U.S. Securities and Exchange Commission (EDGAR). June 4, 2019. Retrieved November 12, 2026.
  21. ↑ 21.00 21.01 21.02 21.03 21.04 21.05 21.06 21.07 21.08 21.09 21.10 21.11 "Annual Report and Accounts 2024/25 (Form 20-F)". U.S. Securities and Exchange Commission (EDGAR). May 29, 2025. Retrieved November 12, 2026.
  22. ↑ 22.0 22.1 22.2 "Sale of Grain LNG". SEC EDGAR, Form 6-K, Exhibit 99.1. August 14, 2025. Retrieved November 12, 2026.
  23. ↑ "The £60 Billion Plan To Rewire Britain, Ep227: John Pettigrew". Cleaning Up. October 8, 2025. Retrieved November 12, 2026.
  24. ↑ "Chair Succession Planning Update". Rentokil Initial plc (Form 6-K). March 5, 2026. Retrieved November 12, 2026.
  25. ↑ "Rentokil Initial plc appoints Thérèse Esperdy as Chair". Rentokil Initial plc (Form 6-K). April 15, 2026. Retrieved November 12, 2026.
  26. ↑ "Rentokil Initial plc: Circular to shareholders relating to the proposed acquisition of Terminix Global Holdings, Inc.". Rentokil Initial plc (Form 6-K, Exhibit 99.2). September 7, 2022. Retrieved November 12, 2026.
  27. ↑ "Director Declaration". SEC EDGAR, Form 6-K, Exhibit 99.1. September 24, 2025. Retrieved November 12, 2026.
  28. ↑ 28.0 28.1 "National Grid chief denies lack of substation capacity in Heathrow outage". March 24, 2025. Retrieved November 12, 2026.
  29. ↑ "Heathrow had enough power capacity during outage, National Grid CEO". March 24, 2025. Retrieved November 12, 2026.
  30. ↑ "Heathrow mulls legal action against National Grid for fire shutdown". July 2, 2025. Retrieved November 12, 2026.
  31. ↑ "National Grid Electricity Transmission: audit of substations". Ofgem. Retrieved November 12, 2026.
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