Octopus Energy’s partnership with Chinese wind turbine manufacturer Ming Yang Smart Energy has triggered warnings over national security risks, with critics questioning the involvement of Chinese firms in Britain’s critical infrastructure.
Britain’s largest household energy supplier, led by government adviser Greg Jackson, announced the deal to develop up to 6 gigawatts of offshore and onshore wind capacity—potentially the first time Chinese-built turbines are deployed in the UK.
The agreement was hailed by Octopus as a “groundbreaking partnership” that could deliver cheap, clean energy and lower household bills. Yet Conservative MPs, alongside US officials, have raised concerns that integrating Chinese technology into the UK grid could expose the country to strategic vulnerabilities. Nick Timothy, shadow energy minister, described the move as “reckless and an unacceptable risk”, warning it could give Beijing indirect influence over UK power generation.
Ming Yang, the world’s third-largest turbine maker, has previously courted controversy in Britain, having signed a memorandum of understanding in 2021 to build a blade-manufacturing plant in Scotland. Although the company is privately owned, its prominence in sensitive energy projects has attracted scrutiny, echoing earlier government interventions against Huawei in telecoms and CGN in nuclear power.
Octopus said it was committed to addressing security concerns, pledging to pair Ming Yang’s hardware with UK-developed software safeguards to ensure “the highest levels of data protection and cybersecurity”. Ministers retain the power to block the deal under the National Security and Investment Act, with officials insisting all Chinese participation in energy supply chains is subject to rigorous review.
The debate comes as the UK accelerates its drive to decarbonise the electricity grid, balancing the urgency of hitting climate targets with growing geopolitical tensions around Chinese investment. The outcome of ministerial scrutiny will determine whether Octopus can proceed with its plan to diversify turbine supply beyond established Western manufacturers such as Vestas, Siemens Gamesa and GE.