NexGen Energy Corp. said its renewable energy subsidiary Airstream Renewables Corp. (ARC) is voluntarily relinquishing its rights to develop two planned wind farms in Cavite and Batangas after further site assessments identified safety, environmental and geotechnical challenges.
The projects are the Asisan Wind Farm under Wind Energy Service Contract (WESC) No. 2023-12-356 and the Sambong Wind Farm under WESC No. 2024-02-373. ARC has notified the Department of Energy (DOE) of the decision and is awaiting the agency’s acceptance and the formal termination of the two contracts.
The Asisan project covers portions of Tagaytay City, Mendez and Alfonso in Cavite. NexGen said further technical evaluations found rapidly expanding residential development in significant parts of the contract area, creating safety-setback constraints, environmental concerns and limited space that could increase navigational hazards.
The Sambong project covers portions of Tagaytay City and Alfonso in Cavite, as well as Laurel and Nasugbu in Batangas. Third-party field investigations found geotechnical challenges associated with the area’s hollow bedrock terrain, making the installation of wind turbine generators technically difficult and, according to the company, financially unviable.
NexGen said both contracts remain at the pre-development stage, meaning the relinquishment is not expected to have an impact on the company’s financial condition or ongoing operations.
The decision reduces part of NexGen’s wind development pipeline, but the company continues to hold other large-scale renewable energy projects. In December 2025, ARC secured three additional onshore wind service contracts from the DOE with a combined projected capacity of 1.7 gigawatts.
Those projects include the 600-megawatt Pangasinan Onshore Wind Power Project, a 600-MW Samar project and a 500-MW Nueva Ecija project. NexGen previously estimated the combined prospective investment for the three developments at about US$2.5 billion.
The company’s current project portfolio also includes other wind developments across the Philippines, including projects in Batangas, Cavite, Quezon, Samar and Nueva Ecija, according to its project listings.
The relinquishment highlights the importance of detailed site assessments before renewable energy projects move into construction. While wind power remains part of NexGen’s expansion strategy, the company’s latest decision shows that technical feasibility, land-use changes, safety requirements and project economics can determine whether individual sites proceed.
For NexGen, the focus now shifts to its remaining renewable energy pipeline, particularly its larger wind projects that are still in development and pre-development stages.
