Unlocking the potential of second life EV batteries

For over a decade, Connected Energy has specialised in creating energy storage solutions from second life electric vehicle batteries. Collaborating with leading automotive suppliers to maximise the value of their second-life assets by transforming them into reliable, safe and sustainable energy storage systems.

From Road to Grid: Powering the future

With our proven technology, supply agreements and grid-scale energy storage sites under development, we have an established route to revenue generation from used vehicle batteries.

Working with battery owners

We have long-term, collaborative relationships with EV and battery OEMs and battery owners that enable us to optimise the integration of second life batteries and match their availability with our development pipelines. Our objective is to ensure second life batteries flow seamlessly into our energy storage projects by continuing to develop our international battery relationships.

Second life energy storage technology solves a mounting challenge for the automotive and energy industries

EV transition

The electric fleet is growing rapidly but operators need to reduce the Total Cost of Ownership of vehicles and the environmental impact of EV batteries.

Energy transition

As nations commit to clean power, energy storage is required to smooth out the intermittent nature of renewables. Repurposing EV batteries can meet this growing demand.

The benefits: from liability to financial opportunity

Reduce the vehicle TCO

By providing a significant residual value for battery packs, contributing to overall competitiveness.

Gain additional revenue

Gain an additional 5 – 8 years of revenue before batteries reach eventual recycling.

Differentiate from the competition

Gain a competitive edge through strategic repurposing.

Contribute to sustainability

By reducing the environmental impact of batteries and gain circular economy credentials.

Delay recycling

To achieve the maximum value from a battery.

Secured second life route

Through Connected Energy's product and development portfolio.

Opportunities:

Developing white-label products:

Developing energy storage technology on behalf of OEMs and battery suppliers
Providing engineering expertise to develop bespoke products
Products used to support EV charging and other applications
Helping OEMs to embrace circular economy principles

Battery incorporation into grid-scale sites:

Capitalising on our technology to develop large-scale energy storage sites
Finding an opportunity to provide a second life use for batteries at scale
Creating a business model for battery owners to monetise their batteries.

M-STOR developments: a guaranteed market for second life batteries

As the availability of second life batteries increases, Connected Energy is now developing grid-scale energy storage projects throughout the UK and France, repurposing these assets to put back into the grid.

A growing portfolio of 225 MWh FTM sites secured in France.
Bringing enhanced revenues through grid-balancing markets.
Financial returns similar to first-life economics.
Infrastructure partners and project backers secured.

Find out more

Why Connected Energy

World-leading battery innovation

Unrivalled expertise

15 years developing proprietary second life technology.

First-mover advantage

Extensive battery industry knowledge and experience.

Mature technology

With 30 commercial systems in operation in the UK and Europe.

Optimised controls

Systems backed by our AI-based optimisation and data services – built on 12.5m hours of operational data.

Business model

A commercial model favoured by battery suppliers and project funders with projects underpinned by industry-verified financial modelling.

Site deployment

A concrete pipeline from in-house developed sites and projects.

Latest News

News 27/05/2026

Connected Energy accelerates French BESS developments with first two building permits secured and new appointment

Dual announcement signals growing momentum in France as company advances its second life battery energy storage portfolio. Read More…

An artist's impression of Connected Energy's Scottow development

News 14/01/2026

Connected Energy to develop UK’s most advanced second-life EV battery testing facility

As a pioneer in second-life battery energy storage systems (BESS), Connected Energy is developing the UK’s most advanced EV battery testing facility in a major new investment. Read More…

News 02/09/2025

Connected Energy launches French expansion with major second life BESS project

Connected Energy has secured grid connection for one of Europe's largest second-life battery energy storage deployments, marking the UK company's expansion into the French market with a 100MWh project Read More…

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Toffee Factory
Lower Steenbergs Yard
Quayside
Ouseburn
Newcastle upon Tyne
NE1 2DF

Technical Centre

Unit 30-32,
Hethel Engineering Centre,
Chapman Way, Hethel,
Norfolk
NR14 8FB