Britain’s push to secure cheaper, cleaner power is colliding with its most sensitive geopolitical fault lines. The trigger is a newly announced UK–China renewable energy partnership that promises large financial and environmental rewards—while reopening unresolved questions about security, supply chains and political risk.
On January 31, 2026, Octopus Energy, Britain’s largest energy supplier, unveiled a landmark agreement to operate in China’s renewable power market, the world’s largest. The announcement was made during Prime Minister Keir Starmer’s official visit to Beijing, giving the deal immediate diplomatic weight as well as commercial significance.
At its core is a joint venture between Octopus Energy and PCG Power, a state-backed Chinese utility, creating a new company called Bitong Energy. The venture combines Octopus’s energy trading software and algorithms with PCG Power’s domestic market access and trading capabilities, and is being positioned as a long-term commercial platform rather than a pilot project.
The scale is striking. Bitong Energy is targeting up to 140 terawatt hours of renewable power trading per year by 2030, a volume roughly equivalent to the UK’s entire current green electricity output. Financial projections suggest the business could generate around £50 million in annual profit by the end of the decade, with about half of that returning to the UK. The joint venture is also aiming for a valuation exceeding £500 million within five years.
Opportunity Meets Strategic Risk
For Octopus founder and chief executive Greg Jackson, the partnership reflects a pragmatic calculation. China’s heavy investment in renewables has driven down the global cost of solar, wind and battery technology, creating an opening for British firms to build services and software on top of Chinese hardware at scale. Jackson has argued that exporting UK expertise in energy trading and system optimisation could both cut electricity costs and accelerate the transition to cleaner power, while supporting economic growth in both countries.
PCG Power’s chairman and chief executive, Li Wenxuan, has framed the venture as a “defining milestone,” emphasising the integration of Octopus’s algorithmic systems with PCG’s local trading reach to unlock what he described as powerful operational synergies inside China’s commercial and industrial renewables market.
Yet the deal lands amid growing unease in Western capitals about deeper economic entanglement with Beijing. The UK government’s renewed engagement strategy has already drawn criticism over human rights concerns, while the United States has repeatedly warned allies about the security implications of closer ties with China. Donald Trump, during and after his presidency, has been particularly vocal in cautioning against expanded Western dependence on Chinese infrastructure and technology.
Those concerns are amplified by China’s dominance of renewable manufacturing. It is the world’s leading producer of wind turbines, solar panels and batteries, a position that has lowered global costs but also heightened anxiety in Britain over energy security, cyber vulnerabilities and supply-chain resilience, especially as the UK accelerates its net-zero transition.
The technology dimension extends beyond China’s borders. Octopus has indicated it plans to deploy Chinese-made turbines in future UK wind projects, naming Shanghai-listed Ming Yang as a supplier. The company intends to roll out six gigawatts of Ming Yang turbines across onshore wind farms in the UK, a scale large enough to influence national generation capacity.
That plan intersects with an unresolved political decision. The UK government is still weighing whether Ming Yang should be permitted to build a wind turbine factory in Scotland, a proposal under intense scrutiny because Ming Yang already has partnerships with both Octopus and PCG Power. The outcome is widely seen as a test of how Britain balances industrial opportunity against national security concerns.
Inside Octopus, the argument for engagement is openly pragmatic. Zoisa North-Bond, chief executive of Octopus’s power generation arm, has pointed to the speed, innovation and capital investment behind China’s wind sector, warning that ignoring those advances could slow Britain’s own energy transition.
For ministers, the Octopus–PCG deal exemplifies a broader strategy: exporting UK energy software, trading systems and operational know-how while leveraging Chinese scale and manufacturing strength. Supporters see this as a way to anchor Britain in the global clean-energy economy. Critics warn it risks deepening dependence on a strategic competitor.
As Bitong Energy begins operations, the partnership is being watched well beyond the energy sector. Its success—or failure—will shape not only the future of Octopus in Asia, but also how far Britain is willing to go in tying its climate ambitions to Chinese infrastructure. The commercial upside is clear. Whether the strategic costs prove manageable is a question the UK government may soon have to answer more directly.
