The loosely connected plug keeping the United Kingdom’s Wylfa Newydd nuclear new-build project alive has been officially pulled.

Horizon Nuclear Power, the Hitachi subsidiary that remained involved in the project following its parent company’s pullout in September 2020, has formally withdrawn its application for a development consent order (DCO) regarding the proposed nuclear plant. (DCOs are required for large infrastructure projects in the United Kingdom to move forward.) The facility was to be sited adjacent to the decommissioned Wylfa reactors, on the island of Anglesey, off the northwest coast of Wales.

A decision on the DCO application, under review by the U.K. Planning Inspectorate since 2018, was expected by April 30, after a series of successful requests for extensions from Duncan Hawthorne, Horizon’s chief executive officer, who had cited “discussions with third parties that have expressed an interest in progressing with the development” of Wylfa Newydd.

Hitachi Ltd. plans to close Horizon Nuclear Power, its U.K. nuclear development subsidiary, early this spring, according to weekend news reports. Horizon is the firm behind Wylfa Newydd, the proposed nuclear new-build project in Wales.

On January 10, citing a story that appeared earlier that day in The Times, Yahoo reported that Hitachi will close Horizon by March 31—a move, Yahoo said, that “could scupper a sale of the [Wylfa Newydd] site, which has attracted interest from bidders, including a U.S. consortium of Bechtel, Southern Company, and Westinghouse, and dent [the] U.K.’s clean energy goals.”

However, a January 11 item on a Welsh online news service stated, “It is understood that if a sale of the site is not secured before Horizon shuts, the sale process will be continued by Hitachi.”

Artist's concept of the Wylfa Newydd project. Image: Horizon Nuclear Power

The London-based newspaper Financial Times is reporting that a consortium of U.S. firms is holding discussions with the U.K. government to revive Wylfa Newydd, the nuclear new-build project in Wales from which Tokyo-based Hitachi Ltd. withdrew in September. According to the November 10 FT story—which is based on an anonymous source—the consortium is led by Bechtel and includes Southern Company and Westinghouse.

Artist's concept of the Wylfa Newydd project. Image: Horizon Nuclear Power

Hopes for the construction of a two-unit nuclear power station in Wales—dashed some three weeks ago when Hitachi Ltd. officially announced its withdrawal from the proposed Wylfa Newydd plant—rose again slightly last week when the United Kingdom’s Planning Inspectorate agreed to delay its decision regarding issuance of a development consent order (DCO) for the project.

The original deadline for the decision had been September 30, but following the receipt of a pair of letters from Horizon Nuclear Power—the Hitachi subsidiary in charge of the project—the inspectorate consented to a December 31 extension.