1. Flexibility is becoming the core value pool in the energy transition

The costs for renewable generation have fallen significantly, and standalone power generation assets are becoming increasingly commoditised. New commercial value is now shifting towards flexibility.

The rapid growth of wind and solar power projects, whilst driving the energy transition, has also brought about new systemic challenges: the timing and location of clean electricity generation often do not fully align with actual electricity demand. The resulting issues, such as curtailment, negative pricing, grid congestion and price volatility affect operational returns and create pressure on financing models, expected returns and long-term capital appetite. 

In this context, market attention is gradually moving from generation capacity alone to system flexibility. Long-duration storage, cross-regional interconnectors, smart charging infrastructure, demand-side response, virtual power plants and flexible load resources such as data centres are becoming key elements in enhancing electricity-system efficiency and value creation.

For Chinese developers and investors, the opportunity is not simply bringing batteries and power generation equipment to the UK but developing projects that meet the grid’s flexibility requirements by combining technical capabilities, data operations and market positioning.

2. Storage bankability depends on revenue structure, location and use case

Driven by both policy guidance and market demand, UK banks and investment institutions remain highly attentive to green development and clean energy projects. Yet, when assessing these projects, investors and bankers focus not merely on technical performance or equipment specifications, but place greater emphasis on whether the project can produce stable, predictable revenue capable of supporting financing.

Bankability of such projects largely depends on whether the revenue model is clear and sufficiently stable. Capacity market revenues, Corporate Power Purchase Agreements (Corporate PPAs), tolling agreements, revenue floor mechanisms, regulatory support policies such as ‘cap-and-floor’ schemes, as well as portfolio financing and co-located generation-and-storage structures all help to reduce exposure to market-price volatility and enhance the project’s appeal to financial institutions and investors.

Project location is also a key factor influencing commercial value. Generally speaking, energy storage projects located closer to grid connection points, major electricity consumption centres or data centres represent greater commercial viability and investment appeal. Particularly in areas affected by grid constraints, data centres, with their stable power demand and potential long-term power procurement, serve as important off-takers and improve revenue predictability and overall project return certainty.

For investors, project due diligence should not start with installed capacity alone. The focus should be on the revenue structure, grid connection, curtailment risk, offtake arrangements, debt capacity and the market value of the project’s location.

At the same time, the development of new energy technologies is placing new demands on the financial system. Traditional project financing models rely primarily on mature technologies, stable cash flows and long-term contracts for support; for innovative sectors such as energy storage, new battery technologies and smart energy management, this model often fails to fully meet their financing needs. Therefore, financial institutions need to innovate their financing models, utilising equity investment, growth capital and industry-finance collaboration to reasonably share risks, thereby providing new energy technology enterprises with more adaptable financial support.

In the future, collaboration among banks, investment funds, industrial capital and other financial institutions will become increasingly important. A more mature framework for sharing risk and value will be critical to supporting innovation and commercialisation in new energy technologies, while also enabling capital providers to achieve stable long-term returns. This, in turn, can help create a virtuous cycle between energy transition and financial innovation.

3. Technology choice can be a legal and commercial risk allocation issue

Batteries are not a single technology category. Different chemistries and storage technologies involve different trade-offs across cost, energy density, power density, safety, lifetime, temperature tolerance, predictability and recyclability.

China’s strength in low-cost LFP lithium-ion manufacturing remains a major advantage and sets a high commercial benchmark for the near-term storage market. At the same time, alternative chemistries such as sodium-ion, solid-state, lithium-sulphur, flow batteries and compressed air will need clear use cases, particularly where lithium-ion is less suitable, such as ultra-long-duration storage, aerospace or hard-to-abate sectors.

For Chinese battery manufacturers and storage solution providers, technology strength must be translated into contractual certainty. Buyers, lenders and co-investors will need evidence of performance, safety, degradation, supply-chain reliability, maintenance and recycling arrangements.

4. ESG, supply chain transparency and governance are becoming market access conditions

In addition to technology and business models, regulatory requirements are also becoming a key factor in the development of energy transition sector. Chinese companies operating cross-border are required to navigate overlapping regulatory regimes in China, the UK and the EU. Especially for ESG compliance, it is no longer merely a matter of disclosure before and after a transaction but becoming a lifecycle management requirement. Companies need to embed ESG principles into corporate governance, decision-making, board oversight, data management, supply chain management, audit mechanisms and investment and financing due diligence. 

In China, mandatory ESG disclosure requirements for major A-share listed companies have officially taken effect. In the UK, the Sustainability Disclosure Requirements (SDR), disclosure obligations under the Task Force on Climate-related Financial Disclosures (TCFD), supply chain transparency requirements under the Modern Slavery Act, and lenders’ ESG reviews are increasingly influencing clean energy transactions.

In the EU, the Carbon Border Adjustment Mechanism (CBAM), the EU Battery Regulation, the Corporate Sustainability Reporting Directive (CSRD) and the Corporate Sustainability Due Diligence Directive (CSDDD) are continuing to raise expectations on carbon, supply-chain and due diligence obligations.

Under the EU Battery Regulation, certain categories of batteries will be subject to battery passport requirements from 2027, using digital traceability mechanisms to record lifecycle information from raw material sourcing through to recycling. This will further enhance industry transparency and supply chain compliance requirements.

For Chinese battery manufacturers and energy storage companies, this means that future competition is not limited to cost efficiency and technology. The focus will shift to areas such as data management capability, supply-chain transparency, sustainability certification and lifecycle responsibility management. Companies that can meet these requirements early and build robust traceability systems will be better positioned to enter European markets and gain recognition from international clients.

5. UK-China collaboration requires early structuring around national security, ownership and data

The UK remains an attractive market for Chinese clean energy companies, with active renewable energy investment, a mature project finance market, a sophisticated professional services ecosystem and strong demand for grid flexibility. However, market entry is not frictionless.

Energy infrastructure, energy storage assets, grid connection projects, data centres and supply-chain arrangements may all raise issues under the UK National Security and Investment Act 2021 (NSIA), as well as supply-chain transparency and data governance considerations. Compared with technology licensing, minority equity investments, joint ventures or commercial partnerships, direct ownership of infrastructure is more likely to attract regulatory scrutiny.

This means that the structure of market entry is itself part of the commercial decision-making process. Know Your Customer (KYC) and Anti-Money Laundering (AML) checks, procurement timelines, data localisation and regulatory approval risks should all be taken into account at an early stage of the transaction, rather than being addressed retrospectively once the commercial terms have been largely finalised.

Recently, CATL partnered with Octopus Energy to launch ‘Swaptopus’, a battery-swapping network for heavy goods vehicles in Europe, providing a new practical example of Chinese companies operating in energy transition projects in the UK and Europe. The opportunity remains significant. However, the focus of future international competition will no longer be limited to the export of battery products or equipment per se. It will heavily depend on effective combination of technological innovation, capital deployment, energy management and business models. Through innovative project design and transaction structuring, companies must demonstrate their capability of mitigating foreign investment scrutiny and geopolitical risks under local regulatory requirements, thereby building a long-term, stable and financeable revenue model.