Biomass boilers using bubbling fluidized bed technology from Helsinki-based Metso Corp. have been ordered for two facilities, including one in the United States.

Metso will supply a biomass boiler to the Nacogdoches Generating Facility in Sacul, Texas, for an installation that also includes a distributed control system. Metso has not disclosed the order’s value. As its main fuel, the bubbling fluidized bed technology will use waste wood from logging and mill activity as well as urban wood waste from clearing, tree trimming and pallets. The plant will produce approximately 100 MW of renewable electric power. According to Metso, the boiler will be one of the largest and most efficient biomass boilers in the world.

Also, a Metso boiler plant using bubbling fluidized bed technology and wood chips as the main fuel will supply Affärsverken Karlskrona AB with heat and power in Karlskrona, Sweden. The order’s total value is nearly $45 million. The plant will produce approximately 36 MW of district heat for the Karlskrona area and approximately 13 MW of electricity for the national grid to fulfill the growing demand of district heat and increase the use of biomass in heat and power generation.

Both boilers are scheduled for early 2012 startup.