Waste-to-energy in the Philippines: what the rules allow

The most common thing said about waste-to-energy in the Philippines is that the Clean Air Act forbids it. The Act, passed in 1999, bans the incineration of municipal, medical and hazardous waste "which process emits poisonous and toxic fumes". The Supreme Court, in a 2002 case about a Metro Manila waste contract, read that clause as a ban on the emissions rather than on the technology. The environment department's guidelines of 2019 then set out what a plant must do to be permitted.

Compiled in September 2026 from the releases of the time, with the revisions the agencies have published since. Nothing here is a forecast.

The 2019 guidelines

Department Administrative Order 2019-21 covers thermal waste-to-energy facilities. It requires an environmental compliance certificate, emission limits for dioxins, furans, heavy metals and acid gases in line with international practice, continuous emission monitoring, and management of the bottom ash and fly ash as separate streams. It also requires the plant to be part of the local government's solid waste management plan under the 2000 law, which means the waste has to be collected and delivered by a system that exists.

What the waste is

Philippine municipal waste is about half organic, wet and low in heating value, with a large fraction of flexible plastic. Burned as received it barely sustains combustion; sorted and dried, the residual fraction is a usable fuel. The design question for a Philippine plant is the front end, not the boiler.

Where it has worked

The plants that run in the region, in Thailand, Vietnam and Indonesia, are on the same waste and the same climate, with the same grate and boiler technology used in Europe and Japan. The plant we delivered in Songkhla, in southern Thailand, burns municipal waste from a provincial city under emission limits comparable to the Philippine guidelines. The rules here are not the obstacle; the contract structure and the tipping fee are.

The demand side

Since 2022 the extended producer responsibility law has obliged large companies to recover their plastic packaging, and a permitted waste-to-energy plant is one of the recognised destinations. That created a paying customer for the residual fraction that did not exist when the earlier proposals were written.

We take a waste-to-energy plant from the feasibility study through delivery and into operation. Tell us about the site and the waste.