Pacific BioEnergy continued to search for a cause of Friday evening's explosion and fire and to assess the extent of damage at its Prince George pellet plant.
The incident has been described as a "dust explosion" but exactly what sparked the blast has not yet been determined and company spokesman Kevin Brown said it may be some time before the exact cause is known.
While the extent of damage has not been fully assessed, Brown did say several pieces of equipment including the bag-house and walls covering the pellet plant were damaged in the incident.
The plant was shut down immediately following the explosion and Prince George Fire and Rescue was called in to combat the subsequent blaze. Firefighters were on the site for about four hours making sure no spot fires were left unextinguished.
No one was hurt in the mishap and the plant's 40 employees continue to report to work.
It was the third time in 32 months firefighters have been called to the plant. A March 2008 explosion and fire resulted in major damage to several areas in the mill and in August 2009, firefighters helped staff extinguish multiple fires that broke out at the plant.
Pacific BioEnergy has been in the process of doubling its capacity to 350,000 tonnes a year and make it the the largest wood pellet manufacturing plant in Canada.
"Included in the expansion project is installation of the latest state-of-the-art fire detection and emergency equipment and monitoring systems," Brown said.
