Alternergy's Tanay Wind Project starts generation as first GEAP II wind facility in the Philippines
The 128MW project's commissioning gives the Philippine auction program its first operational proof point, with 283.5 GWh of annual output projected.
Philippine renewable energy developer Alternergy Holdings Corporation began generating electricity from its 128MW Tanay Wind Project on Monday (2026-08-03), making it the first wind facility to reach commercial operations under the Department of Energy's Green Energy Auction Program II, Asian Power reported.3
The commissioning matters for how the country allocates new renewable capacity. GEAP II was designed to bring competitive discipline to renewable procurement, and Tanay's start of generation is the first demonstration that an awarded project can clear the full development and construction pipeline.3
At full operations, the project is expected to produce around 283.5 GWh of renewable electricity annually, enough to supply approximately 118,125 households, Asian Power reported. The developer projects annual carbon dioxide avoidance of roughly 197,780 metric tonnes once the plant reaches full output.3
Alternergy has not disclosed the contracted tariff under GEAP II, and Asian Power did not report the auction clearing price. That figure carries weight for investors assessing whether the Tanay model can be replicated: a tariff that supported on-schedule construction would strengthen the case for further auction rounds, while evidence of renegotiation or supplementary support would expose the program's terms as insufficient.3
The 128MW nameplate puts Tanay alongside other recently commissioned onshore wind projects across Asia. Tata Power Renewable's 100.8MW Jewali wind project in Maharashtra, India, commissioned in early July (2026-07-09), was designed to generate 299 million units annually — a slightly higher yield per megawatt that reflects site wind resource differences rather than any shift in turbine technology.2
Globally, onshore wind additions have accelerated. Total installed wind capacity hit a record 165 GW in 2025, up 40% year-on-year, led by China, the United States, and India, according to a Japan NRG report published in June (2026-06-22). The Philippines sits well outside that leading group.1
Tanay's 128MW, while domestically significant, does not shift regional supply balances. The country's generation mix remains heavily weighted toward fossil fuels, and renewable penetration has been constrained by grid infrastructure and the limited depth of competitive wholesale markets. Adding 283.5 GWh annually improves supply diversity without resolving the grid-stability questions that larger offshore or utility-scale solar programs would face.3
Still, the GEAP framework is aimed at changing that trajectory. By tying capacity additions to competitive auctions, the DoE is trying to attract larger-scale investment on terms that avoid the opaque bilateral contracts that characterized earlier Philippine power procurement. Tanay gives the program its first operational reference point.3
The more telling signal will come from the next GEAP II commissioning. Tanay is first. How long before a second project follows it to generation will say more about the program's systemic effectiveness than any single project's output figures.3