Planet 9 Energy Limited

Active10167383 Private limited company

Incorporated: 6 May 2016 (10 years)
Previously known as: Galena Energy Limited (until 13 January 2017)
Industry: Trade of electricity (35140)
Directors: Jennifer Urell
Arnold Mahon
Lisa Dupuy
all 4 directors
Owned by: Esb Group (UK) Limited
Accounts type: Full
Region: Greater London
Address: Eastcastle House
27/28 Eastcastle Street
London
W1W 8DH

Filing status

Accounts due: 30 September 2027
Last accounts: 31 December 2025
Conf. stmt due: 19 May 2027
Last conf. stmt: 5 May 2026

Officers 5 active

Officer details are public data from the Companies House register.

Urell, Jennifer

Director · Appointed 1 October 2026

Irish

Born November 1982

Mahon, Arnold

Director · Appointed 29 November 2023

Irish

Born May 1978 (48)

Dupuy, Lisa

Director · Appointed 21 November 2023

Irish

Born January 1985 (41)

Harris, Tara, Company Secretary

Secretary · Appointed 1 August 2023

Sheehy, Ronan Padraig

Director · Appointed 11 March 2021

Irish

Born July 1970 (56)

Officer history (14 former)

1 October 2026

Appointed Urell, Jennifer as Director

29 November 2023

Appointed Mahon, Arnold as Director

29 November 2023

Resigned Barr, Gareth as Director

21 November 2023

Resigned Stapleton, Andrea as Director

21 November 2023

Appointed Dupuy, Lisa as Director

1 August 2023

Resigned Corcoran, Brendan as Secretary

1 August 2023

Appointed Harris, Tara, Company Secretary as Secretary

31 March 2023

Resigned Casey, Shane as Director

31 March 2023

Appointed Barr, Gareth as Director

31 March 2023

Resigned Walsh, John as Director

31 March 2023

Resigned Fuller, Paul as Director

31 March 2023

Appointed Stapleton, Andrea as Director

11 March 2021

Appointed Sheehy, Ronan Padraig as Director

11 March 2021

Resigned Mckervey, Ken as Director

31 August 2020

Resigned Mcgirr, Aidan as Director

31 August 2020

Appointed Fuller, Paul as Director

6 May 2020

Appointed Casey, Shane as Director

6 May 2020

Appointed Mckervey, Ken as Director

6 May 2020

Resigned Healy, John as Director

11 February 2020

Appointed Corcoran, Brendan as Secretary

11 February 2020

Resigned Healy, John as Secretary

1 December 2018

Resigned O'Leary, Denis as Director

1 December 2018

Appointed Mcgirr, Aidan as Director

1 December 2018

Appointed Walsh, John as Director

1 December 2018

Resigned Barry, Brendan as Director

31 October 2018

Resigned Walsh, Gavan Patrick as Director

21 February 2017

Appointed Healy, John as Director

13 January 2017

Appointed Walsh, Gavan Patrick as Director

13 January 2017

Appointed O'Leary, Denis as Director

13 January 2017

Appointed Healy, John as Secretary

13 January 2017

Appointed Barry, Brendan as Director

13 January 2017

Resigned Slade, Jonathan Alexander as Director

6 May 2016

Appointed Slade, Jonathan Alexander as Director

Ownership 1 active

People and entities with significant control, from the Companies House PSC register

Esb Group (UK) Limited

Corporate entity · Notified 13 January 2017

Owns 75–100% of shares

Private Company Limited By Shares

Reg. no. 4182868

Group structure 41 shown

Ownership group derived from the Companies House PSC register

Esb Group (UK) Limited

Esb Asset Development UK Limited Owns 75–100% of shares

Blarghour Wind Farm Limited Owns 25–50% of shares

Cambrian Renewable Energy Limited Owns 25–50% of shares

Coolkeeragh Esb Limited Owns 75–100% of shares

Crockagarran Wind Farm Ltd Owns 75–100% of shares

Curryfree Wind Farm Limited Owns 75–100% of shares

Devon Wind Power Limited Owns 75–100% of shares

Esb Solar (Northern Ireland) Limited Owns 75–100% of shares

Facility Management UK Limited Owns 75–100% of shares

Garvary Wind Farm Limited Owns 25–50% of shares

Glendye Wind Farm Limited Owns 25–50% of shares

Hunter's Hill Wind Farm Limited Owns 75–100% of shares

Reg Greenburn Limited Has significant influence or control

Reg Knockodhar Limited Has significant influence or control

Esb Innovation UK Limited Owns 75–100% of shares

Esb Retail GB Limited Owns 75–100% of shares

Esb Energy Limited Owns 75–100% of shares

So Energy Limited Owns 75–100% of shares

Esbii UK Limited Owns 75–100% of shares

Aldeburgh Offshore Wind Holdings Limited Owns 25–50% of shares

Aldeburgh Offshore Wind Investments Limited Owns 75–100% of shares

Carrington Power Limited Owns 75–100% of shares

Chleansaid Wind Farm Limited Owns 75–100% of shares

Craigneil Wind Farm Limited Owns 75–100% of shares

Gwynt Glas (Esb) Holding Company Ltd Owns 75–100% of shares

Gwynt Glas Offshore Wind Farm Limited Owns 25–50% of shares

Highland Wind Farm Limited Owns 25–50% of shares

Inch Cape Offshore Holdings Limited Owns 25–50% of shares

Inch Cape Offshore Holdings 2 Limited Owns 75–100% of shares

Knottingley Power Limited Owns 75–100% of shares

Lewis Wind Power Holdings Limited Owns 25–50% of shares

Stornoway Wind Farm Limited Owns 75–100% of shares

Malin Sea Wind Limited Owns 75–100% of shares

Millmoor Rig Wind Farm Limited Owns 75–100% of shares

NNG Windfarm Holdings Limited Owns 25–50% of shares

Neart NA Gaoithe Offshore Wind Limited Holds 75–100% of voting rights

Onshore Wind Development Holdco (UK) Limited Owns 75–100% of shares

Shetland Offshore Wind Limited Owns 75–100% of shares

West Durham Windfarm Limited Owns 75–100% of shares

And 1 more

Planet 9 Energy Limited This company Owns 75–100% of shares

Filings 65

Date	Description	Made Up To
23 October 2026	Appointment of a director
2 July 2026	Confirmation statement with no updates	5 May 2026
28 June 2026	Full accounts	31 December 2025
26 September 2025	Full accounts	31 December 2024
6 May 2025	Confirmation statement with no updates	5 May 2025