King County fuel cell demonstration project

Looking north at heat recovery equipment.
(This equipment captures hot exhaust gas and uses it to heat water in a boiler. Heat is then piped back to the treatment plant digesters.)

Sulfa-Treat vessels (for digester gas scrubbing).

EBOP (electrical balance of plant) skid converts DC current to AC. Fuel cell stacks are located in the pressure vessel to the right of the photo.

Looking south at the gas/air processing skid in the center of the photo. This is where hydrogen from methane gas (produced at the plant) and oxygen from the atmosphere are mixed and directed to the fuel cell stacks.