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. 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. 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 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.