Solar, wind, and storage projects nationwide are up for bid in the Philippines' largest renewable energy auction to date.

Earlier this week, the much-awaited fourth round of the Philippines Department of Energy's (DOE) Green Energy Auction (GEA-4) was formally opened to registrants.

Qualified suppliers started the auction registration procedure on Monday, June 16th, and it will conclude on Friday, June 20th. According to DOE's official GEA-4 schedule, registrants will begin the pre-bid assessment process on June 23 and conclude on June 27. A pre-bid meeting is scheduled for July 25–28, after which the eligible bidders will be notified by July 2.

On September 2, 2025, the real auction is scheduled to begin. Offers of acceptance will be made between October 1 and October 3, with bid validation starting on September 11. The official GEA-4 chronology is available on the government's website.

Energy-Storage.news reported earlier this year that the DOE began the first part of the GEA-4 auction process on March 13. The government of the Southeast Asian nation will put out a bid for 9,378 MW of renewable energy, which will include onshore wind capacity as well as distributed and large-scale solar PV, including ground-mount, rooftop, and floating PV. Additionally, 1,100 MW of solar projects with an energy storage component—known as Integrated Renewable Energy and Energy Storage Systems, or IRESS, as the DOE has named them—will be out for bid.

Developers who succeed will be awarded 20-year supply contracts with the government for projects in Luzon, Visayas, and Mindanao, with dates of commercial operation in 2026, 2027, 2028, and 2029.

The Green Energy Auction procurements in the Philippines have been considered successful due to the number of projects awarded contracts, many of which have energy storage capabilities. For projects not eligible for feed-in tariff (FiT) subsidies, the previous cycle, which took place at the beginning of the year, targeted a total installation target of 4,650 MW. The primary suitable technologies were geothermal, pumped hydro energy storage (PHES), and hydroelectric power.

GEA-3 ended with 7,500 MW of proposed capacity granted, which included a 550 MW hydropower project, a 30.9 MW geothermal plant, and three PHES projects totaling 6,950 MW.