National Wealth Fund Backs 500MW Battery Project at West Burton C

National Wealth Fund commits £200 million to West Burton battery project

The National Wealth Fund has invested £200 million in a 500MW battery energy storage facility at the former West Burton coal power station in Nottinghamshire. Fidra Energy’s West Burton C project reached financial close in July 2026 and represents one of the largest battery installations planned for the UK grid.

The scheme will convert part of the retired coal plant site into a modern energy storage facility capable of powering up to 300,000 homes during peak demand. Construction is scheduled to begin later in 2026, with full commercial operations expected by 2028.

Total investment in the project amounts to approximately £250 million. In addition to the National Wealth Fund’s equity stake, Fidra Energy secured £231 million in debt financing from international lenders. US-based energy investor EIG also provided equity capital for the development.

The facility will store 1.1GWh of energy, allowing it to absorb surplus renewable generation and release power when demand increases. This type of grid-scale storage has become increasingly important as the UK adds more wind and solar capacity to its electricity mix.

Converting coal infrastructure for grid storage

West Burton C will occupy land adjacent to the site where West Burton A coal power station operated until its full retirement in March 2023. The location sits near Retford in Bassetlaw, next to the still-operating West Burton B gas plant.

Bassetlaw District Council granted planning consent for the battery project in the third quarter of 2024. The approval process considered the site’s existing grid connection infrastructure and its suitability for large-scale energy storage.

Sungrow will supply liquid-cooled Power-Titan 2.0 battery energy storage system units for the installation. These systems use thermal management technology designed to maintain stable operating temperatures across the battery arrays.

The West Burton site has attracted significant energy infrastructure interest. Separately, the UK Atomic Energy Authority selected land near West Burton for the country’s first prototype fusion energy plant. Consequently, the area is transitioning from coal-fired generation to a cluster of next-generation energy technologies.

How the project fits the National Wealth Fund’s clean energy strategy

The National Wealth Fund was established to direct public capital toward infrastructure projects supporting the UK’s climate goals. West Burton C represents the fund’s entry into grid-scale battery storage financing.

This investment is part of a broader National Wealth Fund commitment to battery energy storage systems across multiple sites. The fund has also backed Fidra Energy’s Thorpe Marsh project in South Yorkshire, a 1,400MW facility that will be substantially larger than West Burton C.

Together, these two projects will add nearly 2GW of storage capacity to the UK grid. For context, the entire UK battery storage fleet currently operates at a fraction of this combined capacity, making these developments significant additions to national infrastructure.

The National Wealth Fund’s involvement provides long-term equity capital that can support projects through construction and early operational phases. This type of patient capital helps developers secure additional debt financing from commercial lenders who require strong equity foundations before committing funds.

For West Burton C specifically, the project has secured 15-year capacity market awards worth approximately £350 million. These contracts guarantee fixed payments in exchange for maintaining grid capacity availability, providing revenue certainty that underpins the investment case.

Revenue model relies on capacity markets and energy arbitrage

Battery storage facilities generate revenue through several mechanisms. Capacity market contracts pay storage operators to guarantee power availability during specified periods, regardless of whether the grid calls on that capacity.

Additionally, batteries earn income through energy arbitrage. They charge when wholesale electricity prices are low, typically during periods of high renewable generation, and discharge when prices rise during peak demand. The price differential between charging and discharging creates the arbitrage margin.

Storage facilities also provide ancillary services to the grid operator. These include frequency response services that help maintain grid stability by rapidly adjusting output in response to fluctuations in supply and demand.

The West Burton C project’s £350 million in capacity market revenues will provide a stable income floor. However, the facility’s overall returns will depend heavily on wholesale price volatility and the frequency of high-demand periods requiring rapid discharge.

What large-scale battery storage means for businesses and procurement

Grid-scale battery projects affect commercial electricity costs in several ways. By smoothing out peaks in wholesale prices, storage systems can reduce the severity of price spikes that flow through to business energy contracts.

For manufacturers and energy-intensive operations, storage capacity helps mitigate the risk of supply constraints during high-demand periods. More storage on the grid means fewer instances where limited generation capacity drives prices to extreme levels.

Businesses participating in public sector tenders increasingly face questions about their electricity procurement strategies. Demonstrating awareness of how grid infrastructure supports renewable integration can strengthen responses to environmental and social value criteria.

Supply chain managers should note that expanded storage capacity enables more reliable integration of variable renewable generation. This matters for businesses making long-term power purchase agreements with renewable generators, as storage improves the bankability of these contracts.

For businesses with their own on-site generation or considering behind-the-meter storage, developments like West Burton C provide useful benchmarks. The technology choices, financing structures, and revenue models used in grid-scale projects often inform smaller commercial installations.

Companies in construction, electrical engineering, and equipment supply may find opportunities as the UK battery storage pipeline expands. West Burton C and similar projects require significant UK-based construction labour, grid connection expertise, and ongoing maintenance services.

Financial structure combines public equity with commercial debt

The West Burton C financing demonstrates how large infrastructure projects blend different capital sources. The National Wealth Fund’s £200 million equity investment provides the risk capital needed to attract debt lenders.

Commercial lenders provided £231 million in debt financing. These lenders typically require that equity investors take the first loss position, meaning the National Wealth Fund and EIG bear more risk than the debt providers.

This structure is common in infrastructure finance. Public sector equity reduces the overall cost of capital by accepting lower returns than commercial equity investors would demand. The result is a project that can proceed at a lower total financing cost.

For the battery storage sector, this financing model may become a template. Grid-scale storage projects face technology risk, merchant revenue exposure, and regulatory uncertainty. Public capital willing to accept these risks can help projects reach financial close when purely commercial terms would be prohibitive.

The National Wealth Fund’s involvement also sends a market signal. By backing battery storage as a strategic infrastructure category, the fund indicates government confidence in the technology’s role in energy transition. This can encourage private investors to deploy capital in similar projects.

Construction timeline and grid connection requirements

Construction is expected to begin in the latter part of 2026, following final site preparation and contractor mobilization. The 2028 commercial operations date allows approximately 18 to 24 months for construction and commissioning.

Battery storage facilities require substantial electrical infrastructure. The site will need high-voltage grid connections capable of handling 500MW of power flow in both directions. Existing grid infrastructure from the former coal plant provides some advantage, though significant upgrades will still be necessary.

The installation will use modular battery units arranged in multiple containerized systems. This modular approach allows phased construction and testing of individual battery blocks before full system integration.

Commissioning involves extensive testing of battery performance, grid synchronization, and control systems. The facility must demonstrate it can respond to grid signals within specified timeframes and maintain stable operation under varying load conditions.

Local employment during construction will include civil engineering, electrical installation, and equipment assembly roles. Ongoing operations will require a smaller permanent workforce focused on monitoring, maintenance, and performance optimization.

Key details about the West Burton C battery project

• The facility will provide 500MW of power output with 1.1GWh of total energy storage capacity when operational in 2028.
• Total investment amounts to approximately £250 million, including £200 million from the National Wealth Fund and £231 million in debt financing.
• The project secured 15-year capacity market awards worth roughly £350 million, providing long-term revenue certainty.
• West Burton C will occupy part of the former coal power station site that ceased operations in March 2023.
• Sungrow will supply liquid-cooled Power-Titan 2.0 battery energy storage system units for the installation.
• Financial close was reached in July 2026, enabling construction to proceed later that year.
• The facility can power up to 300,000 homes during periods of peak electricity demand.

Commercial implications for energy-intensive businesses

Energy-intensive sectors should monitor how expanding battery capacity affects wholesale electricity markets. More storage typically compresses price volatility, which can benefit businesses with flexible demand patterns.

Companies with operations near West Burton may see local grid reinforcement as the project connects. Improved local grid infrastructure can support future commercial developments requiring high-power connections.

Businesses making net-zero commitments should understand how grid storage supports renewable integration. While storage itself doesn’t generate clean energy, it enables higher renewable penetration by addressing intermittency challenges.

For businesses considering corporate power purchase agreements, expanded storage capacity improves the reliability of renewable supply. This makes long-term renewable contracts more attractive and potentially more competitively priced.

Companies in manufacturing supply chains may face customer questions about electricity sources and grid infrastructure. Understanding how projects like West Burton C support grid decarbonization helps address these inquiries credibly.

Public sector suppliers should note that government investment in battery storage signals continued focus on grid infrastructure as a climate priority. This context is relevant when responding to social value questions in tender submissions.

Businesses planning their own energy infrastructure should watch how grid-scale projects perform financially. The revenue models and technology choices made at facilities like West Burton C provide data points for evaluating smaller commercial storage investments.

How battery storage supports compliance and reporting

Grid-scale storage doesn’t directly affect most businesses’ Scope 1 or Scope 2 emissions reporting. However, it influences the carbon intensity of grid electricity, which matters for Scope 2 calculations.

As storage enables more renewable generation to connect and operate effectively, the average emissions factor for grid electricity gradually decreases. This trend benefits all businesses purchasing grid power, as their location-based Scope 2 emissions fall accordingly.

For businesses making science-based targets or net-zero commitments, understanding grid infrastructure developments provides useful context. Stakeholders increasingly ask how companies account for grid decarbonization in their emissions projections.

Companies procuring renewable electricity through contracts or guarantees of origin should recognize that storage improves the grid’s ability to accommodate their renewable generation. This creates a more credible connection between renewable procurement and actual grid decarbonization.

Businesses reporting to frameworks like CDP or TCFD may choose to reference grid infrastructure investments when discussing transition risks and opportunities. Projects like West Burton C demonstrate tangible progress in the energy system businesses depend on.

For SMEs responding to PPN 06/21 requirements in public procurement, awareness of how the grid is evolving supports credible carbon reduction plans. While not directly relevant to most suppliers’ plans, it shows informed engagement with the wider energy transition.

Where to find more information on UK energy storage policy

The UK government publishes energy storage policy guidance through the Department for Energy Security and Net Zero. This department oversees capacity market rules and grid infrastructure strategy.

National Grid ESO provides technical information about grid balancing and storage requirements on their website. Their future energy scenarios publications outline expected storage capacity needs as renewable generation increases.

Ofgem regulates energy storage facilities and sets the framework for how storage assets can participate in electricity markets. Their guidance documents explain connection requirements and market participation rules.

The British Business Bank manages the National Wealth Fund and publishes information about its investment strategy and portfolio projects. This includes details on clean energy infrastructure financing priorities.

For businesses considering carbon reduction strategies and compliance support, understanding grid infrastructure developments provides useful context. Similarly, companies exploring sustainable procurement approaches can benefit from awareness of how energy storage supports renewable integration across supply chains.