[NEWS] Arizona Coal-Fired Plant Successfully Tests Woody Biomass

– by Paul Davenport, October 28, 2016, News OK


Coronado Generating Station (Photo: AZ Central)

An Arizona water and power utility is conducting an experiment to add forest-thinning debris to coal burned by an electricity-generating plant, hoping to make thinning more economical to help avoid devastating wildfires producing runoff that would contaminate reservoirs.

A test conducted Wednesday at the Salt River Project’s Coronado Generating Station near St. Johns in eastern Arizona showed that the plant’s machinery can handle mixing woody biomass material with coal, SRP officials said.

That sets the stage for stage for two 10-day periods of burning biomass in November, said SRP water strategy analyst Ron Klawitter.

Klawitter said SRP then will study costs and other data collected during the planned biomass burns before deciding whether to using forest debris to augment coal as a fuel source on a regular basis.

“This test is all about a market-driven solution to forest restoration in northern Arizona,” Klawitter said.

The forest debris used in Wednesday’s test burn was chipped from cuttings from an existing thinning project on state land near Flagstaff. Several state agencies, including the Land and Forestry departments, are partnering with SRP in the project, which is partly federally funded.


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