EDF signs solar CPPAs with BAE Systems and NatWest

EDF secures long term solar power agreements with major UK corporates

EDF Power Solutions UK has confirmed the signing of Corporate Power Purchase Agreements with BAE Systems and NatWest. The power will come from the planned Tye Lane solar farm in Suffolk.

For UK businesses, this announcement highlights how large energy users are securing clean electricity years ahead of delivery. It also shows how solar projects rely on corporate contracts to reach construction. While this deal involves global brands, the mechanics matter just as much for small and mid sized firms.

Corporate Power Purchase Agreements, often shortened to CPPAs, are private electricity supply contracts. A business agrees to buy power from a specific renewable project at an agreed price. The contract usually runs for ten to fifteen years.

As a result, developers gain predictable income. In return, buyers secure long term price certainty and renewable electricity. In today’s volatile energy market, that stability has become commercially attractive.

The Tye Lane deal comes at a time when UK solar development has slowed. Rising build costs, grid delays and uncertain power prices have made projects harder to finance. CPPAs are now one of the main ways developers bridge that gap.

For SMEs, the story is not about copying BAE Systems. Instead, it is about understanding how these contracts shape energy prices, grid capacity and supply chains. Those pressures increasingly affect firms of all sizes.

This article explains what has been agreed, where the project stands, and why it matters to UK businesses. We also set out what SMEs should be thinking about as corporate renewable buying becomes more common.

The Tye Lane solar farm and how it reached agreement stage

The Tye Lane solar farm is a ground mounted photovoltaic project in Suffolk. It sits to the north west of Bramford, near Ipswich.

The scheme has a planned capacity of 49.9 megawatts. This sits just below the fifty megawatt threshold that triggers national planning oversight. As a result, the application was handled by the local planning authority.

EDF Renewables UK first brought forward proposals for the site in 2021. The location was selected for two practical reasons. First, the area receives above average solar irradiation for the UK. Second, it sits close to the National Grid Bramford substation.

The substation lies around five kilometres to the south. That proximity reduces the length and cost of the grid connection. Grid access has become one of the biggest constraints on new renewable generation.

The planning process involved public consultation with local residents and parish councils. Concerns raised during consultation included landscape impact, traffic during construction and land use.

Mid Suffolk District Council granted planning consent in December 2023. Approval covered a thirty five year operating lifespan, after which the land would be restored.

The consent also included environmental conditions. EDF committed to biodiversity measures such as wildflower margins, new hedgerows and areas of woodland planting.

A community benefit fund was also agreed. Under the planning terms, EDF will provide twenty thousand pounds per year for local projects throughout the life of the scheme.

Once consent was granted, EDF shifted focus to securing commercial backing. Like many UK solar projects, Tye Lane required long term power sales agreements before construction could start.

Construction had initially been expected to begin in late 2024. Build time was estimated at between six and nine months. Commercial operation was targeted for 2025.

However, as of early 2026, the project remains in pre construction. The recent confirmation of CPPAs with BAE Systems and NatWest represents a key step towards financial close.

What EDF has agreed with BAE Systems and NatWest

EDF Power Solutions UK has signed separate Corporate Power Purchase Agreements with BAE Systems and NatWest. Both contracts relate specifically to electricity produced by the Tye Lane solar farm.

While EDF has not disclosed contract lengths or pricing, the structure follows a familiar model. EDF will develop, own and operate the asset. The corporate buyers commit to purchasing an agreed volume of electricity.

EDF Business and Wholesale will provide shaping, balancing and sleeving services. In simple terms, this means matching variable solar output to each buyer’s demand profile.

It also means handling the interface with the wholesale market. Few businesses want to manage half hourly settlement risk themselves.

BAE Systems has confirmed that the power from Tye Lane will cover around fifteen percent of its UK electricity demand. The contract supports the firm’s target to source ninety percent renewable electricity by 2030.

NatWest has not disclosed the share of demand covered by the agreement. However, the bank has set public climate targets covering both operational emissions and financed emissions.

EDF confirmed the agreements in February 2026. According to Matthieu Hue, Chief Executive of EDF Power Solutions UK, the contracts provide essential support for delivering the project.

Earlier comments from EDF during the planning process emphasised the company’s continued focus on solar as part of its UK generation mix. Tye Lane forms part of a wider portfolio of sub fifty megawatt solar sites.

Comparable EDF projects include Bloy’s Grove and Sutton Bridge. Like Tye Lane, these schemes sit close to grid infrastructure and rely on long term offtake agreements.

EDF has stated that CPPAs now support a significant share of its UK solar pipeline. Without them, many projects would struggle to reach construction.

Why CPPAs have become central to UK solar delivery

To understand the wider impact, it helps to look at why CPPAs matter. Over the past decade, UK renewables benefitted from government backed price support.

Early solar projects relied on feed in tariffs. Later schemes secured Contracts for Difference, known as CfDs. These mechanisms reduced price risk for generators.

Most new solar projects no longer qualify for these schemes. Developers instead sell power directly into the wholesale market or via private contracts.

Wholesale prices are volatile. They have shifted sharply since 2021 due to gas prices, geopolitics and system constraints.

That volatility makes lenders cautious. Without predictable income, banks are reluctant to fund construction.

CPPAs address that problem. A long term buyer provides revenue certainty. In many cases, the contract underpins the project’s financing.

For corporate buyers, the appeal is also clear. Energy costs remain one of the least predictable inputs for many businesses.

A fixed or floor priced CPPA can reduce exposure to short term price spikes. It also provides clear evidence of renewable electricity sourcing.

Unlike green tariffs, CPPAs tie consumption to a specific asset. That distinction matters for carbon reporting and credibility.

According to the Department for Energy Security and Net Zero, private power contracts are expected to play a growing role in meeting UK net zero targets. You can find background on this approach on the government’s net zero strategy.

The Tye Lane deal fits squarely within that policy direction. It demonstrates how private sector demand supports new generation.

What this means for UK SMEs beyond the headline names

At first glance, this story may seem remote from small and mid sized businesses. BAE Systems and NatWest operate at a very different scale.

However, the effects filter down in several ways. First, corporate buyers influence wholesale market dynamics.

When large firms secure electricity through CPPAs, they reduce their exposure to the open market. That can tighten supply for others at certain times.

Second, CPPAs influence grid access. Projects backed by strong offtake are more likely to proceed, which affects where new capacity comes online.

Grid congestion remains a major constraint for many regions. Areas with new solar and wind can see different pricing signals.

Third, CPPAs increasingly shape supply chain expectations. Large buyers often push carbon requirements down to their suppliers.

If your customer sources renewable electricity through a CPPA, they may expect you to show similar ambition. This often feeds into tender scoring.

We see this regularly in sectors such as manufacturing, construction and professional services. Carbon disclosures are no longer limited to direct emissions.

Electricity consumption sits within Scope 2 emissions. Under common reporting frameworks, these emissions must be reported using agreed methods.

Using power backed by credible renewable sourcing can affect how those emissions are calculated and presented.

While SMEs may not sign CPPAs tomorrow, the benchmarks are shifting. What counts as credible action today often becomes standard expectation within a few years.

This is especially relevant for firms working in regulated sectors or public procurement. Buyers increasingly ask about energy sourcing, not just efficiency.

Understanding how corporate renewable deals work helps SMEs anticipate those questions. It also avoids being caught off guard in future tenders.

The cost and risk considerations behind long term power contracts

Long term power contracts are not risk free. That applies to large corporates and smaller organisations alike.

CPPAs fix or structure prices over many years. If market prices fall significantly, buyers may pay more than spot rates.

Equally, if prices rise sharply, CPPAs can look very attractive. The challenge is that no firm can predict long term price movements.

There is also volume risk. Solar output varies with weather. Shaping and balancing services manage this, but they come at a cost.

Contract complexity is another factor. CPPAs involve legal, commercial and accounting considerations that differ from standard supply contracts.

For these reasons, CPPAs have historically been the preserve of large buyers. However, structures are evolving.

Some SMEs now access aggregated or shorter term renewable contracts. These do not always carry the CPPA label, but they share similar risks and rewards.

Before considering any long term power commitment, businesses should review demand forecasts carefully. Over or under buying power can create additional costs.

Firms should also consider credit requirements. Developers and counterparties may require guarantees or security.

In essence, renewable sourcing decisions now sit alongside other commercial risks. They are no longer purely ethical choices.

Headline points from the Tye Lane solar agreement

• The Tye Lane solar farm in Suffolk has a planned capacity of 49.9 megawatts.
• EDF Power Solutions UK has signed CPPAs with BAE Systems and NatWest.
• The contracts were confirmed in February 2026.
• BAE Systems expects the power to meet around fifteen percent of its UK electricity demand.
• The project received planning consent in December 2023 from Mid Suffolk District Council.
• EDF plans biodiversity enhancements and a twenty thousand pound annual community fund.
• The solar farm is expected to generate around sixty seven thousand megawatt hours per year.

How we see this affecting SME decision making

From our work with SMEs, we see growing confusion around renewable electricity claims. Many firms still rely on standard green tariffs.

These tariffs often use certificates rather than direct links to generation. While legitimate, they are coming under closer scrutiny.

Corporate deals like Tye Lane raise expectations. Buyers and investors increasingly understand the difference between contractual sourcing models.

This does not mean every SME needs a bespoke power agreement. However, it does mean energy strategy deserves more thought.

Firms should first understand their current electricity contracts. Many are on rollover terms with little price protection.

Next, it is worth mapping customer requirements. If your major clients have net zero targets, they may soon ask for evidence of action.

We also advise looking at timing. Contract renewal dates matter. Opportunities to improve terms often align with renewal windows.

For some businesses, onsite generation or private wire arrangements may make sense. For others, improved procurement is the priority.

What matters is avoiding assumptions. Renewable electricity is no longer a simple tick box.

Our work on energy procurement for UK businesses often starts with clarifying these basics.

For firms reporting emissions, SBS support for carbon reporting compliance can help interpret Scope 2 rules.

The sooner businesses engage with these issues, the easier it is to respond as expectations rise.

Sources and official information for further detail

Businesses that want to explore this topic in more depth should refer to primary sources.

The UK government sets overall energy and net zero policy through the Department for Energy Security and Net Zero. Its publications outline how private investment supports new generation.

Planning information for projects like Tye Lane can be found via local authority planning portals. These provide details on consent conditions and community measures.

For context on renewable electricity claims, the Carbon Trust guidance on electricity reporting explains how different sourcing models are treated.

Coverage of the UK corporate power market also appears in outlets such as the Financial Times energy section, which tracks investment trends.

Finally, the government’s wider ambitions for clean power are set out on gov.uk, including updates on grid reform and planning policy.

Together, these sources help explain why agreements like the Tye Lane CPPAs are becoming more common, and why their effects reach far beyond the companies named in the headline.