Our story

Eelpower was founded to construct, own and operate a platform of flexible battery assets to provide balancing services and participate in the power market, the largest commodity market in the world. To do this, we built and operated some of the first large batteries in the UK and gathered a team of professionals who each bring unique insight and experience. The UK is one of the leading flexible storage markets in the world, and Eelpower will bring its experience in its home market to work with partners globally.

Timeline

February 15, 2017

Eelpower is born

Eelpower is incorporated in the same week as The Economist magazine publishes an influential article on clean energy.

UK goes coal-free

Eelpower is born

April 17, 2017

UK goes coal-free

The UK marks the first full day when power generation is completely coal-free. For over 24 hours, from about 23:00 on Thursday 20th April until midnight on Friday 21st April there was zero contribution to the UK National Grid by coal.

Eelpower brand adopted

UK goes coal-free

April 25, 2017

Eelpower brand adopted

Electricity Enterprise Limited becomes Eelpower Limited. The new name is chosen because it is sleeker and more rooted in the natural world from which renewable and sustainable energy sources are derived.

New 10MW battery

Eelpower brand adopted

June 23, 2017

New 10MW battery

Eelpower completes the acquisition of a 10MW battery asset in construction at Leverton near Lincoln. This is the teams’ fifth battery asset.

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UK National Grid launches consultation

New 10MW battery

July 1, 2017

UK National Grid launches consultation

The UK National Grid holds a consultation on future system needs and strategy. Online webinars follow on from the publication of a consultation document.

UK Government strategy announced

UK National Grid launches consultation

July 24, 2017

UK Government strategy announced

The UK Government publishes a strategic plan for an open market in the provision of grid balancing services. Eelpower is among the first businesses to respond.

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First National Grid contract

UK Government strategy announced

October 17, 2017

First National Grid contract

Eelpower wins a landmark 24-month Frequency Response contract with National Grid.

Eelpower’s Leverton battery goes live

First National Grid contract

November 16, 2017

Eelpower’s Leverton battery goes live

Eelpower’s Leverton battery storage facility – our first – goes live, ready to provide frequency response balancing services to the National Grid 24/7 for the next two years.

£20m funding from Gravis Capital

Eelpower’s Leverton battery goes live

March 9, 2018

£20m funding from Gravis Capital

Gravis Capital and Eelpower sign an agreement for £20m of funding to construct Eelpower’s pipeline of permissioned sites.

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Eelpower gains electricity generation licenses

Eelpower’s Leverton battery goes live

July 17, 2018

Eelpower acquires Rock Farm battery storage site

Eelpower completes a second 20MW battery storage scheme at Rock Farm in Shropshire.

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Eelpower gains electricity generation licenses

Eelpower’s Leverton battery goes live

August 13, 2018

Rock Farm joins Limejump’s virtual power plant

Eelpower’s new Rock Farm facility enters the UK balancing market as part of Limejump’s aggregated virtual power plant. This is the first time that batteries have been used this way in the UK.

Eelpower gains electricity generation licenses

Eelpower’s Leverton battery goes live

November 12, 2018

Magdalena Markiewicz joins Eelpower

Eelpower expands when ex-Rothschilds banker Magdalena Markiewicz joins as Chief Financial Officer.

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Eelpower gains electricity generation licenses

Magdalena Markiewicz joins Eelpower

March 19, 2019

Eelpower gains electricity generation licenses

Eelpower is granted Electricity Generation licences by the UK regulator Ofgem for Leverton and Rock Farm.

Eelpower and Centrica sign 7-year contract

Magdalena Markiewicz joins Eelpower

July 27, 2019

UK Net Zero laws passed

The UK Government passes legislation to achieve Net Zero carbon emissions by 2050.

Eelpower and Centrica sign 7-year contract

Magdalena Markiewicz joins Eelpower

August 9, 2019

Eelpower’s Rock Farm responds to UK blackout

Eelpower’s battery assets provide 7% of the grid’s instantaneous response to the 9th August evening power cut following the loss of two generators that connect to the GB transmission system.

Eelpower and Centrica sign 7-year contract

Magdalena Markiewicz joins Eelpower

October 24, 2019

EU approves UK capacity market

The European Commission approves the UK’s Capacity Market.

Eelpower and Centrica sign 7-year contract

EU approves UK capacity market

December 3, 2020

Eelpower and Centrica sign 7-year contract

Eelpower signs a 7-year contract with Centrica for the optimisation of Eelpower’s Leverton assets, using Centrica’s FlexPond™ system.

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Eelpower-SUSI joint venture agreed

Eelpower and Centrica sign 7-year contract

January 25, 2021

Eelpower-SUSI joint venture agreed

Eelpower and SUSI Partners AG (“SUSI”) agree a joint venture to build and operate a pipeline of new battery storage assets in the UK.

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Eelpower and Habitat Energy sign 3-year optimisation contract

Eelpower and Centrica sign 7-year contract

February 23, 2021

Eelpower and SUSI sign optimisation contract with EDF

Eelpower and SUSI signs a 7-year optimisation contract with EDF to manage the trading and optimisation of three batteries at Rock Farm, Winchester and Dunsinane.

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Eelpower and Habitat Energy sign 3-year optimisation contract

Eelpower and Centrica sign 7-year contract

July 29, 2021

Matthew Margot joins Eelpower

Matthew Margot joins from Gresham House Asset Management to help Eelpower develop its lifetime asset optimisation and risk management capabilities.

Eelpower and Habitat Energy sign 3-year optimisation contract

Eelpower and Centrica sign 7-year contract

September 17, 2021

£100m joint venture between Eelpower and NextEnergy signed

Eelpower and NextEnergy Solar Fund launch a £100m joint venture with the aim of creating 250MW of storage, starting with a 50MW utility scale battery energy storage project.

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Eelpower and Habitat Energy sign 3-year optimisation contract

Eelpower and Centrica sign 7-year contract

October 12, 2021

Eelpower and SUSI hit 150MW of battery storage capacity

Eelpower’s joint venture with SUSI hits a landmark with 190MW of grid connected battery storage in operation and construction for the UK grid.

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Eelpower and Habitat Energy sign 3-year optimisation contract

Eelpower and Centrica sign 7-year contract

December 9, 2021

Katherine Vinnicombe joins Eelpower

Katherine Vinnicombe joins the Eelpower team from SSE as Head of Business Development.

Eelpower and Habitat Energy sign 3-year optimisation contract

Katherine Vinnicombe joins Eelpower

February 18, 2022

Eelpower and Habitat Energy sign 3-year optimisation contract

Eelpower signs a 3-year optimisation contract with Habitat Energy, covering two 50MW battery storage projects created as part of our joint venture with SUSI.

As wind levels soar, the UK needs more grid-scale batteries

Katherine Vinnicombe joins Eelpower

May 10, 2022

Dynamic frequency response services now active

Batteries managed by Eelpower are now contracted to deliver National Grid ESO’s new frequency response service – Dynamic Moderation. This completes Eelpower’s trifecta of responsibility for delivering a full suite of new frequency response services.

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As wind levels soar, the UK needs more grid-scale batteries

Katherine Vinnicombe joins Eelpower

September 12, 2022

Eelpower agrees a £200m Battery Storage JV with NextEnergy Solar Fund

Eelpower agrees a £200m joint venture partnership with NextEnergy Solar Fund, the specialist solar and energy storage climate impact fund, with a combined installed power capacity of 865MW.

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As wind levels soar, the UK needs more grid-scale batteries

Katherine Vinnicombe joins Eelpower

October 31, 2022

Eelpower and NextEnergy Solar Fund’s JV acquires 250MW Battery Storage project

Eelpower and NextEnergy Solar Fund, the specialist solar and energy storage climate impact fund, announces it has acquired the development rights, permits, and initial grid milestones for a 250MW portfolio of high-quality battery storage projects and grid connections.

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As wind levels soar, the UK needs more grid-scale batteries

Katherine Vinnicombe joins Eelpower

November 23, 2022

Eelpower enters joint venture with Renewable Power Capital

Renewable Power Capital (RPC), the pan-European renewable energy investment platform backed by CPP Investments, has entered the battery storage market in Great Britain. The joint venture with Eelpower targets 1GW of utility-scale storage capacity, with a near-term pipeline of 240MW.

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As wind levels soar, the UK needs more grid-scale batteries

Katherine Vinnicombe joins Eelpower

November 30, 2022

Marcia Poletti joins Eelpower’s board

Marcia Poletti, Head of European System Change at Octopus Energy, joins the Eelpower Board as a Non-Executive Director.

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As wind levels soar, the UK needs more grid-scale batteries

Marcia Poletti joins Eelpower’s board

January 11, 2023

As wind levels soar, the UK needs more grid-scale batteries

The UK produced a record amount of wind power in 2022, with wind farms contributing 26.8% of electricity. However, as wind generation continues to soar, the country needs more grid-scale batteries to make sure this power is harnessed to its full potential.

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Marcia Poletti joins Eelpower’s board

February 22, 2023

Eelpower energises SUSI Partners’ Winchester battery storage site

The 10MW Winchester battery storage project, in partnership with SUSI Partners, becomes operational. A small but important step in the realisation of the company’s multi-GW storage platform vision.

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Marcia Poletti joins Eelpower’s board

April 27, 2023

SUSI-Eelpower and EDF bring North Scotland’s first 50MW battery into commercial operation

SUSI-Eelpower, a joint venture between SUSI Partners and Eelpower dedicated to deploying large-scale battery energy storage assets in the UK, brings online the largest standalone operational battery storage in Scotland.

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Timeline

Since Eelpower was founded in 2017, we have helped develop the most dynamic flexible energy market in the world. Our timeline shows selected company and industry milestones.

See our story

Eelpower is born

2017
2018
2017
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2018

2016

Feb 2017
Eelpower is born
Apr 2017
UK goes coal-free
Apr 2017
Eelpower brand adopted
Jun 2017
New 10MW battery
Jul 2017
UK National Grid launches consultation
Jul 2017
UK Government strategy announced
Oct 2017
First National Grid contract
Nov 2017
Eelpower’s Leverton battery goes live

2018

2018
2019
2018
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2019

2017

Mar 2018
£20m funding from Gravis Capital
Jul 2018
Eelpower acquires Rock Farm battery storage site
Aug 2018
Rock Farm joins Limejump’s virtual power plant
Nov 2018
Magdalena Markiewicz joins Eelpower

2019

2019
2020
2019
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2020

2018

Mar 2019
Eelpower gains electricity generation licenses
Jul 2019
UK Net Zero laws passed
Aug 2019
Eelpower’s Rock Farm responds to UK blackout
Oct 2019
EU approves UK capacity market

2020

2020
2021
2020
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2021

2019

Dec 2020
Eelpower and Centrica sign 7-year contract

2021

2021
2022
2021
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2022

2020

Jan 2021
Eelpower-SUSI joint venture agreed
Feb 2021
Eelpower and SUSI sign optimisation contract with EDF
Jul 2021
Matthew Margot joins Eelpower
Sep 2021
£100m joint venture between Eelpower and NextEnergy signed
Oct 2021
Eelpower and SUSI hit 150MW of battery storage capacity
Dec 2021
Katherine Vinnicombe joins Eelpower

2022

2022
2023
2022
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2023

2021

Feb 2022
Eelpower and Habitat Energy sign 3-year optimisation contract
May 2022
Dynamic frequency response services now active
Sep 2022
Eelpower agrees a £200m Battery Storage JV with NextEnergy Solar Fund
Oct 2022
Eelpower and NextEnergy Solar Fund’s JV acquires 250MW Battery Storage project
Nov 2022
Eelpower enters joint venture with Renewable Power Capital
Nov 2022
Marcia Poletti joins Eelpower’s board

2023

2023
2024
2023
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2024

2022

Jan 2023
As wind levels soar, the UK needs more grid-scale batteries
Feb 2023
Eelpower energises SUSI Partners’ Winchester battery storage site
Apr 2023
SUSI-Eelpower and EDF bring North Scotland’s first 50MW battery into commercial operation

2024

Eelpower milestones

Industry milestones

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