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Connected Energy grid-scale battery energy storage developments

At Connected Energy, we’re developing grid-scale battery energy storage projects that transform second life EV batteries into grid-scale assets using our latest M-STOR technology.

As the availability of second life batteries increases, Connected Energy is driven by maximising their economic value. We are now developing grid-scale energy storage throughout the UK and France, repurposing these assets to put back into the grid. Our developments accelerate the transition to an electrified future by balancing energy supply and demand while addressing the growing challenge of end-of-life EV batteries.

The power plants of the future, fuelled by second life electric vehicle batteries.

Building on the success of our commercial products, our grid-scale developments will range from 5MWh to 75MWh+. Our developments will bring together a range of strategic partners – from battery suppliers, automotive companies, renewable energy developers, investors and landowners – to deliver second life energy storage at scale.

A cornerstone of our M-STOR developments is the integration of second life EV batteries. With over 100 million EV batteries expected to be retired in the next decade, repurposing them into energy storage delivers substantial financial and sustainability benefits, reinforcing our commitment to the circular economy.

A growing portfolio of 225 MWh sites secured in France

Projects developed, managed and maintained by Connected Energy

Backed by a robust financial business model for our partners and investors

Monetising second-life EV batteries with revenue generated by energy trading

Financial returns similar to first-life economics

First sites: expected by Q4 2026

Our credentials

Our expertise

With a strong track record of delivering commercial battery energy storage systems using second-life batteries, we have demonstrated our ability to bring reliable, innovative solutions to the market.

Technological innovation

Our energy storage systems incorporate dynamic controls and comprehensive monitoring capabilities, guaranteeing seamless integration of a range of batteries with the energy network.

A robust financial model

Our developments are backed by rigorous financial modelling and market-leading revenue forecasts. This allows us to optimise the system size for each site and accurately forecast revenue and returns.

Automotive relationships

Capitalising on our existing supply chain and our network of partners positions us to scale with growing battery availability, ready for a growing portfolio of sites across the UK and Europe.

Uncompromising safety

By using robustly engineered batteries from the automotive industry, our systems benefit from their investment in safety engineering, backed by our own 24/7 monitoring and optimisation platform.

Optimised battery life

Our wealth of data and our extensive experience in optimising battery state of health, enables us to maximise the remaining capacity within second-life batteries for the highest revenue returns.

Flexible to adapt to changing markets

Using modular architecture, our systems can scale power and energy throughout the project lifetime to adapt to changing energy markets with adjustable cycling parameters, flexible duty cycles and battery-agnostic design.

Full turnkey approach

From feasibility studies to operations, optimisation and maintenance, Connected Energy will manage every stage of our developments for the long-term.

Carbon leadership

Using second life batteries, we reduce the carbon footprint of the battery lifecycle by reusing existing materials and contributing to the battery circular economy.

Case study: Scottow Enterprise Park

Connected Energy is developing a second life EV battery testing facility as part of our first wholly owned and operated second life BESS site.

The flagship facility, situated in Norfolk, will test and integrate batteries from multiple EV bus and truck manufacturers, demonstrating the clear business case for repurposing them in grid-scale energy storage.

The facility will generate extensive data to support a scalable commercial model for large-scale deployments as more second-life batteries become available from end-of-life EVs.

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