Waste-to-energy plants always incinerate the trash. You don't need to put thermal.

"A waste-to-energy plant (WtE) is a modern term for an incinerator that burns wastes in high-efficiency furnace/boilers to produce steam and/or electricity and incorporates modern air pollution control systems and continuous emissions monitors. This type of incinerator is sometimes called an energy-from-waste (EfW).""In waste-to-energy plants, trash is burned to produce steam that can be used either to heat buildings or to generate electricity."