The New York State Department Department of Environmental Conservation is taking comment until Nov. 17 on a draft air permit for Cricket Valley Energy Center LLC, which needs this new permit due to project delays and the lapse of the old one.
The company is proposing to construct the Cricket Valley Energy Center, a nominal net 1,000-MW combined-cycle gas turbine facility, to be located on a site in Dover, Dutchess County, New York. The initial permit was issued in September 2012 and an 18-month extension was granted by the department in March 2014 as construction had not commenced within 18 months from issuance of the initial permit.
“CVEC does not anticipate commencement of construction by the end of the 18-month extension period on September 27, 2015,” the department said in a permitting document. “However, CVEC anticipates that construction will commence in early 2016 and, therefore, this application is being submitted to obtain a new Air Title V permit for the Facility. The Facility, as documented in this permit application, is consistent with the current permit referenced above.”
The facility will consist of three General Electric Model 7FA.05 combustion turbine generators (CTGs) operating in combined-cycle mode with supplemental firing of the heat recovery steam generators (HRSGs). Natural gas will be the sole fuel fired in the CTGs and duct burners. The facility will also include a natural gas-fired auxiliary boiler, four ultra-low sulfur distillate (ULSD) fired black-start generator engines and a ULSD-fired emergency fire pump engine.
Since issuance of the original permit, GE has improved the performance of the 7FA.05 CTG and as a result, the maximum heat input to this model turbine has increased since the original approval. To accommodate this increase in heat input to the CTG, the maximum duct firing rate has been reduced. The auxiliary boiler, black-start generator engines and emergency fire pump engine will have the same rating and emissions as those contained in the original permit.
In addition to the air-emitting equipment, the facility will include three steam turbine generators (STGs), an air cooled condenser (ACC) and associated auxiliary equipment and systems. Each combined cycle generating unit consisting of the CTG, HRSG and STG will be exhausted through its own stack.
The emission control technologies proposed for the CTG and duct burner exhaust gases include dry low NOx (DLN) combustors, selective catalytic reduction (SCR) to control NOx emissions, and oxidation catalysts to control carbon monoxide and volatile organic compounds emissions. DLN combustors are integrated within each CTG, and SCR and oxidation catalysts are located within each HRSG. Emissions of SO2, PM10/PM2.5, and H2SO4 will be minimized through use of natural gas as the sole fuel in the CTGs and duct burners.
In other recent developments for this project:
- The New York State Public Service Commission can make the six statutory findings and determinations under the state Public Service Law (PSL) to certify Cricket Valley Energy Center LLC’s (CVE) proposed transmission line project to serve this power plant, said CVE in an Aug. 24 brief filed at the PSC. The company wants approval to build a new, approximately 14.6-mile, 345-kV transmission line to connect the Cricket Valley Energy Center to Consolidated Edison’s Pleasant Valley Substation.
- Cricket Valley Energy Center on July 31 petitioned the New York PSC for approval of the $1.5 billion in financing needed for it to construct, own and operate this project.