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.
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.
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.

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.

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.

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.

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.

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.

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.

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.

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.
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.
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.

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.
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.

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.

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.

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.

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.
Eelpower is born
2016
2018
2017
2019
2018
2020
2019
2021
2020
2022
2021
2023
2022
2024
Eelpower milestones
Industry milestones
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