Arizona agency works on air permit change for Novo biomass plant

The Arizona Department of Environmental Quality (ADEQ) is taking comment until April 12 on a proposed Air Quality Control Significant Permit Revision for Novo BioPower LLC for a biomass-fired power plant located at Snowflake in Navajo County, Arizona.

Said a permit document: “This Class I, Title V significant permit revision for Novo BioPower, LLC (the Permittee) removes Conditions I.B.1.a and I.B.c.(1) of Attachment ‘B’ of the operating permit. Condition I.B.1.a limits the facility to a maximum heat input of 2,971,777 MMBtu based on all fuels for any consecutive 12 month period. Condition I.B.1.c.(1) limits the facility to a maximum heat input of 1,033,000 MMBtu when firing wood fiber as fuel. Pollutant emission limits for NOX, CO, SO2, and HCl are all based on a rolling 365 day ton per year limits monitored by (Continuous Emission Monitoring Systems) CEMS to ensure compliance. The PM emission limit is based on a pound per MMBtu basis. The total MMBtu of all fuels fired will still continue to be monitored and recorded. Consequently, removing these conditions does not have any affect on boiler emissions or ensuring compliance with these limits.”

The Novo BioPower facility is fueled by waste wood and bark from nearby forest salvage operations, other sources of unprocessed wood waste, and small portions of paper fiber from the previous Catalyst paper mill. The plant has a nominal capacity of 24 MW, and consists of an approximate 340 Million British thermal unit (MMBtu) boiler, steam turbine unit, a cooling tower, and wood handling equipment.

About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.