The Rhode Island Energy Facility Siting Board will conduct an open meeting on Sept. 15 to discuss and decide whether or not proposed work and associated capacity upgrades at the Tiverton Power Facility constitute an alteration of a major energy facility, thereby requiring the facility owner to apply with the board for a license to alter the facility.
Tiverton Power LLC filed a July 31 application to allow these changes without that full board review. Its controls a 265-MW (nominal), gas-fired, combined-cyce plant in Tiverton, R.I. There is one General Electric Frame 7FA turbine at the plant, a heat recovery steam generator and a steam turbine.
The company said that during routine maintenance time in the spring or fall of 2016, it plans various upgrades, including an Advanced Gas Path project, which will involve installation of certain new components that can stand higher temperatures, allowing higher efficiency, lower air emissions and more generating capacity. Other improvements include a new combustion control system. The changes will allow up to 10% higher power output for the plant. The nominal plant rating is expected to go from 265 MW to 287 MW. Another benefit will be the ability to operate the plant at lower loads, adding to operational flexibility in an increasingly variable power market in New England.
Emera Energy has selected General Electric (NYSE: GE) for this upgrade work at Tiverton, GE said in a July 15 statement.
“The upgrades by GE will include best-in-class technology and will improve Tiverton Power’s efficiency and output. They also will increase its availability by extending the maintenance intervals,” said Dave Pickles, Emera Energy’s vice president of operations. “GE supplied the plant’s original generation equipment and we feel their technology, expertise and project-management experience will help us make Tiverton Power one of the most fuel-efficient and lowest emitting power plants in the U.S.”
This investment marks the first combined-cycle project in North America to incorporate three GE Power FlexEfficiency upgrade offerings, including a new .04 compressor, a Dry Low NOx 2.6+ combustor and GE’s Advanced Gas Path technology solution.
Tiverton Power began commercial operation in 2000. In 2013, Emera Energy acquired Tiverton Power. The Emera Energy parent is Canada-based Emera Inc. Emera common and preferred shares are listed on the Toronto Stock Exchange and trade under the symbols EMA, EMA.PR.A, EMA.PR.C, EMA.PR.E, and EMA.PR.F.