co-gen

UNC-Chapel Hill is asking state and federal environmental agencies to allow it to test a new fuel to replace coal at its co-generation station on Cameron Avenue.

Plans for what’s called the Engineered Pelletized Fuel Source Project are part of an application filed late last month with the state’s Division of Air Quality to test fuel pellets with a far lower carbon output than coal.

According to a description of the project, the pellets are produced “from non‐recyclable feedstock materials provided by local manufacturing facilities” by Convergen Energy, at its Green Bay, Wisconsin facility.

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From the presentation uploaded to NCDEQ

Convergen and UNC’s application assert the fuel meets the requirements of non-hazardous materials allowing it to be used safely.
A company document provided as part of the application says the pellets are made from a mix that’s 60% to 80% cellulose fiber and 15% to 40% polymer (plastic). The primary polymer types are listed as polyethylene, polypropylene, polyester and nylon. Although a laboratory analysis of the fuel showed “negligible concentrations”  of per- and polyfluoroalkyl (PFAS), UNC plans to conduct additional testing “to ensure concentrations of PFAS remain negligible.”

If approved, testing would begin in the summer of 2025 and last 12 months, after which, if successful, UNC would seek a permit change to allow regular use of the new fuel. The application states that the fuel could eventually replace all coal combustion.

Co-gen

As part of the permit process, UNC has asked the Town of Chapel Hill’s Building and Development Services to issue a determination that the use of the new pelletized fuel is consistent with local zoning ordinances. A decade ago UNC tested wood pellets as an alternative during its push to eliminate coal use. The plan was abandoned over concerns about cost and the reliability of wood pellet supply chain.
In 2010 UNC promised to divest from coal by 2020. That process has stalled, with the campus now saying it will “be emission-neutral—but not coal-free—by the year 2040.”
Questions we have:
– When is the public going to get a chance to talk about this?
– Is this going to Chapel Hill Town Council for discussion?
– How involved is local government going to be during testing or is this something the university does with its own oversight?
– How was Covengen chosen and are there plans to build any facilities to support this operation? If so, how did that contracting process work?
– With research by Melody Kramer