“Biomass-fueled boiler reduced Seattle Steams carbon foot print by over 50 percent.”

Project Description

Seattle Steam Company owns and operates a district heating system serving numerous downtown buildings and institutions with reliable economical thermal energy in the form of low pressure steam. Operating multiple boiler facilities to serve its subscribers, Seattle Steam has previously relied heavily on natural gas, and to a lesser extent, light fuel oils. Seeking to reduce its reliance on fossil-based fuels and provide additional value to its customers, Seattle Steam is upgrading its primary downtown thermal boiler facility to utilize renewable woody biomass fuels. A new 80,000 lbs-steam per hour capacity bubbling fluid bed combustor and boiler fitted with state-of-the-art combustion and emissions controls will be the new base-loaded thermal source, operating year-round on locally-generated clean woody fuels. An all-new indoor fuel receiving, in-processing, and storage facility sited across the street from the boiler will receive truck-delivered fuel overnight and meter fuel back across to the new boiler.


Project Details

Client Seattle Steam Company
Date 2009
Services EPC
Location Seattle, WA

Project Features

Precision Energy Services is engaged in providing the project with a refurbished and upgraded fluid bed combustor and boiler with state-of-the-art combustion management and emissions controls as well as fuel receiving, in-processing/screening, storage, reclaim, and metering design, engineering, and procurement. Additionally, as the project progressed Seattle Steam asked PES to supply overall project services to closely manage other aspects of project design, construction, installation, and coordination. This project is particularly challenging due to its location in the midst of a highly urbanized neighborhood and the limited space available for the equipment within the existing plant. The installation of the biomass-fueled boiler will reduce Seattle Steams carbon foot print by over 50 percent.

Project Highlights

The installation of this biomass boiler will reduce Seattle Steam’s carbon footprint by 50%.

Like What You See?