Philhydro backs Department of Water bill to unlock hydropower potential
With the country’s renewable energy (RE) capacity continuing to grow, developer group Philhydro Association Inc. expects the hydropower sector to follow suit, noting hundreds of gigawatts (GW) worth of untapped potential.
In an ambush interview last week, Philhydro president Gertrude V. Roque said the country could have around 650 GW of potential hydropower capacity still waiting to be developed.
“There are unreachable sites, or there are sites that are part of an ancestral domain or something,” she said, adding that these potential project areas still need to be evaluated by the Department of Environment and Natural Resources (DENR).
With such large potential, how can the country scale up its hydropower capacity? Roque said stronger policies, such as the establishment of the Department of Water, would help drive growth.
“We heard that there’s this Department of Water bill. I don’t know where it is now, but I hope that a bill similar to that will be passed to further see the potential, and also how the hydropower will be able to help the current problems of the country, specifically the flooding and irrigation in terms of [drought]. At the same time, protecting the communities and the watersheds,” she elaborated.
House Bill (HB) No. 9663 proposes to establish the Department of Water Resources (DWR) and Water Regulatory Commission, aiming for a centralized system to manage all water-related concerns in the country.
According to the Department of Energy’s (DOE) latest data gathered in 2024, hydropower capacity increased by 22.8 megawatts (MW), contributing 337.87 MW to total RE capacity installations since 2009.
Meanwhile, the total expected capacity to be added after the first and third green energy auctions (GEA) amounts to 6,722 MW. These technologies include run-of-river (ROR), impounding, and pumped-storage hydro.
Additionally, the DOE anticipates 841.9 MW of committed capacity for these technologies, the majority of which are located in Luzon.
As of October 2025, there are 210 hydropower plants under pre-development stage, 75 in indicative phase, while 38 have already been committed for construction.