The Rhode Island Energy Facility Siting Board will conduct a public hearing on May 23 at the Burrillville High School Auditorium in Harrisville on a power project of Invenergy LLC.
In an application filed with the board in October 2015, Invenergy Thermal Development LLC sought approval to site and construct the Clear River Energy Center, a combined-cycle facility of approximately 850 MW to 1,000 MW, and associated facilities and structures, on Wallum Lake Road in Burrillville. The plant is intended to fire natural gas as a primary fuel and ultra-low sulfur diesel fuel as a backup fuel.
Since the October 2015 application, Invenergy has been answering various questions from intervenors about the project, including an April 26 response to questions posed by the Town of Burrillville. Those answers mostly had to do with site grading and truck access to the site.
One answer about diesel fuel storage said that up to 2 million gallons of ultra-low-sulfur diesel fuel would be stored there, which is enough to allow one unit to run at baseload for up to 72 hours during any natural gas supply disruption. If the gas supply problem continues beyond 72 hours, the site can be re-supplied with diesel fuel by truck.
Another question from the town was whether Invenergy would be willing to install any hydroelectric capacity since Burrillville is an old mill town that used to depend on its river for energy production. Invenergy said it has no experience with hydroelectric generation and that building such capacity on the town’s existing dam would produce little electricity and cause water flow problems on the river.
The facility will be configured as a two-unit one-on-one (1×1), combined-cycle station. Each unit will consist of an advanced class combustion turbine operated in a combined-cycle configuration with a heat recovery steam generator, a steam turbine and an air cooled condenser for each train. The combustion turbine, steam turbine, and generator of each unit will be connected via a common shaft (otherwise referred to as a single shaft machine).
The power generated by the facility will be transmitted through a new 345-kV transmission line to be installed from the facility through an existing National Grid right-of-way to the Sherman Road Substation in Burrillville.