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HomeMy WebLinkAboutAQ_F_0400050_20160831_CMPL_InspRpt NORTH CAROLINA DIVISION OF Fayetteville Regional Office AIR QUALITY NCEMC-Anson Plant NC Facility ID 0400050 Inspection Report County/FIPS:Anson/007 Date: 09/06/2016 Facility Data Permit Data NCEMC-Anson Plant Permit 09492/T08 749 Blewett Falls Road Issued 12/21/2015 Lilesville,NC 28091 Expires 11/30/2020 Lat: 34d 58.0837m Long: 79d 55.3361m Classification Title V SIC: 4911 /Electric Services Permit Status Active NAICS: 221112/Fossil Fuel Electric Power Generation Current Permit Applications)None Contact Data Program Applicability Facility Contact Authorized Contact Technical Contact SIP/Title V Shawn Fowler S.Ragsdale Khalil Porter NSPS: Subpart KKKK Manager,Combustion VP of Asset Management Environmental Scientist Turbine Generation (919) 875-3056 (919) 875-3088 (704) 848-4002 Compliance Data Comments: Inspection Date 08/31/2016 Inspector's Name Heather Carter Inspector's Signature: Operating Status Operating Compliance Code Compliance-inspection Action Code FCE Date of Signature: cj f 6rj6i On-Site Inspection Result Compliance Total Actual emissions in TONS/YEAR: TSP S02 NOX VOC CO PM10 *HAP 2014 3.45 --- 59.73 7.38 52.07 3.45 830.17 2013 16.44 0.3200 53.26 9.71 47.01 16.44 713.55 2012 38.63 0.9300 133.70 26.38 79.99 38.63 2135.99 *Highest HAP Emitted(in pounds) Five Year Violation History: None Performed Stack Tests since last FCE: None I 1) DIRECTIONS TO SITE: From FRO take 401 S. to Wagram. Turn right on Old Wire Road (NC 144)just south of Wagram. Stay on NC 144, (this road will cross over 15/501) until you reach HWY 74. Turn right on HWY 74. Just after crossing the Pee Dee River, turn right onto Power Plant Road. Travel approx a mile and turn left onto Blewett Falls Road. The facility will be on the right. 2) SAFETY CONSIDERATIONS: Required safety equipment includes, safety shoes, eye protection and hardhat. Open no doors and touch no plumbing while the turbine is in operation. I 3) FACILITY DESCRIPTION: This facility has simple-cycle, natural gas-fired (low sulfur No. 2 fuel oil backup) combustion turbines generating electricity in Anson County. The facility can produce 340 MW of electrical power to retail distribution during periods of high demand or during emergencies. This facility uses six Pratt and Whitney Fr-8 Swift-Pac simple cycle gas turbine generator sets. Each of the six units consists of two turbines, each equipped with water injection, and one generator. The two turbines associated with each FT-8 do not have to operate simultaneously. The double-ended configuration allows for greater efficiency during partial load usage. This plant operates as a "peaking" facility to meet peak power demands on a daily or seasonal basis. Pollution control is demineralized water injection to control NOx. "Simple cycle gas turbine" means any stationary gas turbine that does not recover heat from the gas turbine exhaust to either preheat the inlet combustion air or to heat water or generate steam. The Plant Information (PI) System was installed at this facility for plant-wide monitoring and analysis. The system handles the collection, storage, and retrieval of parametric data. It also acts as a data server for Microsoft Windows-based client applications that operators, engineers, managers, and other plant personnel use to view the plant data stored in the PI Data Archive. The facility chooses to use a predictive emission monitor systems (PEMs) to monitor NOx emissions in lieu of CEMs. The predictive emission monitor systems have been proven to be as accurate as the CEMs and are in fact more economical from the cost and maintenance.The facility uses this software program to monitor and determine NOx emissions from the gas turbines in real time. Continuous NOx emission rate is determined based on vendor's data and turbine operating parameters. 4) INSPECTION SUMMARY: On 31 August 2016, I, Heather Carter, met with Mr. Shawn Fowler, Plant Manager, at the Anson facility to conduct an air quality compliance inspection. Mr. Fowler provided all records for review, as required by the permit. The turbines were operating at the time of inspection. All twelve turbines are under contract with Duke/Progress Energy and are all run as close to equal time as possible, mi order to maintain their"peaking" status for federal rule applicability. 5) PERMITTED EMISSION SOURCES: )Emission Etwssi6js SourceDescription+ Control® Control Device ourcg ID No,' 3 Dvtce` DescriptiUri, ;ID No:i ES-lA One Pratt&Whitney Fr8 Swift-Pac simple-cycle gas turbine(300 CD-1 Water injection NSPS million Btu per hour nominal heat input capacity when firing system Operating on natural gas,and 281 million Btu per hour nominal heat input NG 0%o VE capacity when firing No. 2 fuel oil)and one generator per set of turbines ES-lB One Pratt&Whitney Fr8 Swift-Pac simple-cycle gas turbine(300 CD-1 Water injection NSPS million Btu per hour nominal heat input capacity when firing system Operating on natural gas,and 281 million Btu per hour nominal heat input NG 0% VE capacity when firing No. 2 fuel oil)and one generator per set of turbines ES-2A One Pratt&Whitney Fr8 Swift-Pac simple-cycle gas turbine(300 CD-1 Water injection NSPS million Btu per hour nominal heat input capacity when firing system Operating on natural gas,and 281 million Btu per hour nominal heat input NG 0% VE capacity when firing No. 2 fuel oil)and one generator per set of turbines ES-2B One Pratt&Whitney Fr8 Swift-Pac simple-cycle gas turbine(300 CD-1 Water injection NSPS million Btu per hour nominal heat input capacity when firing system Operating natural gas,and 281 million Btu per hour nominal heat input on NO 0% capacity when firing No.2 fuel oil) and one generator per set of VE turbines ES-3A One Pratt&Whitney Fr8 Swift-Pac simple-cycle gas turbine(300 CD-1 Water injection NSPS million Btu per hour nominal heat input capacity when firing system Operating on natural gas,and 281 million Btu per hour nominal heat input NG 0% VE capacity when firing No. 2 fuel oil)and one generator per set of turbines ES-3B One Pratt&Whitney Fr8 Swift-Pac simple-cycle gas turbine(300 CD-1 Water injection NSPS million Btu per hour nominal heat input capacity when firing system Operating on natural gas,and 281 million Btu per hour nominal heat input NG 0% VE capacity when firing No. 2 fuel oil)and one generator per set of turbines ES-4A One Pratt&Whitney Fr8 Swift-Pac simple-cycle gas turbine(300 CD-1 Water injection NSPS million Btu per hour nominal heat input capacity when firing system Operating on natural gas, and 281 million Btu per hour nominal heat input NG 0% VE capacity when firing No. 2 fuel oil)and one generator per set of turbines ES-4B One Pratt&Whitney Fr8 Swift-Pac simple-cycle gas turbine(300 CD-1 Water injection NSPS million Btu per hour nominal heat input capacity when firing system Operating on natural gas,and 281 million Btu per hour nominal heat input NG 0% VE capacity when firing No.2 fuel oil) and one generator per set of turbines ES-5A One Pratt&Whitney Fr8 Swift-Pac simple-cycle gas turbine(300 CD-1 Water injection NSPS million Btu per hour nominal heat input capacity when firing system Operating on natural gas,and 281 million Btu per hour nominal heat input NG 0% VE capacity when firing No.2 fuel oil)and one generator per set of turbines ES-5B One Pratt&Whitney Fr8 Swift-Pac simple-cycle gas turbine(300 CD-1 Water injection NSPS million Btu per hour nominal heat input capacity when firing system Operating natural gas,and 281 million Btu per hour nominal heat input on NG 0% capacity when firing No.2 fuel oil)and one generator per set of VE turbines ES-6A One Pratt&Whitney 17178 Swift-Pac simple-cycle gas turbine(300 CD-1 Water injection NSPS million Btu per hour nominal heat input capacity when firing system Operating on natural gas,and 281 million Btu per hour nominal heat input NG 0% VE capacity when firing No.2 fuel oil)and one generator per set of turbines ES-6B One Pratt&Whitney Fr8 Swift-Pac simple-cycle gas turbine(300 CD-1 Water injection NSPS million Btu per hour nominal heat input capacity when firing system Operating on natural gas,and 281 million Btu per hour nominal heat input NG 0% VE capacity when firing No.2 fuel oil)and one generator per set of turbines i 6) REGULATORY/STIPULATION REVIEW: A. 15A NCAC 2D .0521: CONTROL OF VISIBLE EMISSIONS — Subject sources: twelve turbines (ES-lA&B thru ES-6A&B). VE is limited to 20% opacity for each turbine when averaged over a 6 min period, except during startup, shutdown and malfunction. APPEARED IN COMPLIANCE- Facility combusts primarily natural gas, and No. 2 fuel oil only as backup. Both are clean burning fuels and as such the opacity should always be in compliance with the 20 percent limitation. Zero visible emissions were observed from all twelve turbines during the inspection. B. 15A NCAC 2D .0524: NSPS, 40 CFR PART 60, SUBPART KKKK— Subject sources: twelve turbines(ES-lA&B thru ES-6A&B). a. S02 emissions limit=For fuel oil- max sulfur content will be</=0.05%,for NG- max sulfur content will be </= 20 grains per 100scf; S02 monitoring= demonstrate fuel will not exceed potential of 0.06 lbs SO2/MMl3tu by representative fuel sampling/contract/tariff; S02 reporting= submit semi-annual excess emissions reports for all periods including startup, shutdown, and malfunction. APPEARED IN COMPLAINCE- The facility initially demonstrated compliance with the NSPS limits based on source tests reviewed and approved by the Raleigh Central Office. Fuel oil sulfur content is determined by representative sampling after adding loads to the storage tank, in accordance with 40 CFR Part 75 Appendix D Section 2.2.4.2. The most recent analysis showed 5.6 ppm S in Tank#1 and 4.6 ppm S in Tank#2. NG sulfur content, according to the Transco website, was within a range of 0.08 to 0.15 grains/100 scf from Jan 2016 through August 2016. Most recent semi-annual report received on 7/28/16. b. NOx emission limits= 25 ppm at 15 percent 02 when firing NG or 74 ppm at 15 percent 02 when firing No. 2 fuel oil; NOx monitoring= NOx emission estimation following 40 CFR Part 75 Appendix E, including re-certifying NOx emissions rate versus heat input rate correlation curve every 5 years; Demonstrate "peaking" status = avg capacity factor of no more than 10% during 3 previous calendar years and no more than 20% during each of those individual years. NOx reporting= submit semi-annual excess emissions reports for all periods including startup, shutdown, and malfunction. APPEARED IN COMPLIANCE- Records show that the turbines are maintaining their "peaking" status with a 3yr average capacity factor of 4-5% and a year-to-date capacity factor of 5.2-5.7%, per turbine. The facility chooses to use a Predictive Emissions Monitoring System (PEMS) that uses a water-to-fuel ratio curve, which is established via testing at least every 5 years (last test in Aug 2012, next test due by Aug 2017), to predict hourly NOx emissions. The fuel and water flow meters are calibrated at least every 5 years(depending on capacity used per turbine, quarterly). The PENIS activates an alarm if NOx emissions exceed 25/74 ppm (gas/oil) for more than 60 seconds (once water flow is established) and if at 720 seconds the emissions still exceed then the unit automatically shuts down in order to avoid exceeding the NOx limit for the rolling 240 minute period. There have been no periods of NOx emissions exceeding the established limits since the last inspection. Most recent semi- annual report was received on 7/28/16. C. 15A NCAC 2D .0530 PREVENTION OF SIGNIFICANT DETERIORATION- Subject sources: twelve turbines (ES-lA&B thru ES-6A&B). CO total emissions shall not exceed 405.5 tons/12 mth period. Each unit shall not exceed 1230 hrs run time on natural gas or 710 hrs run time on No. 2 fuel oil (</=0.002%S),not including startup/shutdown time. APPEARED IN COMPLIANCE- The 12-month rolling total CO emissions (Aug 2015 to July 2016) was 95.81 tons. All units were below the hour run time limit for this same period, 414 hrs on NG and 35 hrs on fuel oil being the highest any one unit ran. D. 15A NCAC 2Q .0317 PSD AVOIDANCE- Subject sources: twelve turbines (ES-lA&B thru ES- 6A&B). NOx limit of 245 TPY. Must record # of startup/shutdowns per day. Monitor NOx emissions in accordance with 40 CFR Part 60 Subpart KKKK (item B, above). Calculate NOx emissions from each turbine daily (including SUSD + daily load), combined NOx emissions from all turbines monthly and on a 12-month rolling basis. Semi-annual reporting of monthly and 12- month rolling total NOx emissions. APPEARED IN COMPLIANCE- Daily records of startup/shutdowns and calculated monthly/12- month rolling total NOx emissions per turbine appeared valid and complete. Total NOx emissions from July 2015 to June 2016=74.32 tons. Most recent semi-annual report received on 7/28/16. E. 15A NCAC 2Q .0400: PHASE H ACID RAIN REQUIREMENTS- Subject sources: twelve turbines (ES-lA&B thru ES-6A&B). There are no specified S02 Allowance Allocations under this rule. The DAQ allocates tons of S02 allowances from a general fund for new sources. APPEARED IN COMPLIANCE — EPA's Air Markets Program Data website shows the facility held an allowance of 29 tons S02 at the beginning of 2015 and reported emissions of 0 tons of S02 at the end of 2015. They carried over an allowance of 29 tons for 2016. F. CROSS STATE AIR POLLUTION RULES (CSAPR) PERMIT REQUIREMENTS — Comply with all applicable requirements of 40 CFR 97 Subparts 5A,513, and 5C. a. 40 CFR 97 Subpart 5A—ANNUAL TRADING PROGRAM -NOx APPEARED IN COMPLIANCE—The facility participates in the NOx Trading program. According to EPA's Air Markets Program Data website,they held an allowance of 103 tons NOx at the beginning of 2015 and reported emissions of 84 tons of NOx at the end of 2015. They carried over an allowance of 19 tons NOx into 2016. b. 40 CFR 97 Subpart 5B—OZONE SEASON TRADING PROGRAM- NOx APPEARED IN COMPLIANCE: The facility participates in NOx trading during ozone season. According to EPA's Air Markets Program Data website,they held an allowance of 65 tons NOx for the 2015 ozone season and reported emissions of 47 tons of NOx during the 2015 ozone season. They carried over an allowance of 19 tons NOx into 2016 ozone season. c. 40 CFR 97 Subpart 5C—GROUP 1 TRADING PROGRAM- S02 APPEARED IN COMPLIANCE: The facility participates in the S02 Group 1 Trading program. According to EPA's Air Markets Program Data website, 0 S02 allowances were used in 2015, and the facility had 0 S02 allowances available for trading at the end of 2015. i G. PERMIT GENERAL CONDITION LA and LB — REPORTING REQUIREMENTS FOR EXCESS EMISSIONS AND PERMIT DEVIATIONS: The facility is required to report ! excess emission events and malfunctions that last more than 4 hours per the requirements of 15A I NCAC 2D .0535. APPEARED IN COMPLIANCE—Mr.Fowler indicated that the facility has had no excess emission/malfunction events and therefore no notification has been required. I I H. PERMIT GENERAL CONDITION P- COMPLIANCE CERTIFICATION REQUIREMENT: The facility is required to submit an Annual Compliance Certification (ACC)report postmarked before March 1 of each year, stating compliance with all permit conditions or noting any deviations during the previous calendar year. APPEARED IN COMPLIANCE—The latest ACC report was received on 02/17/16. I. GENERAL CONDITION "X" —ANNUAL EMISSION INVENTORY REQUIREMENTS — Facility shall submit an Annual Emission Inventory postmarked on or before June 301 of each year. APPEARED IN COMPLIANCE—The facility's 2015 AQEI was received on 0 611 5/20 1 6 and appeared to be complete and accurate. J. PERMIT GENERAL CONDITION MM — FUGITIVE DUST CONTROL REQUIREMENT: The Permittee shall not cause of allow fugitive dust emissions to cause or contribute to substantive complaints or excess visible emissions beyond the property boundary. APPEARED IN COMPLIANCE—Mr.Fowler stated that no dust complaints had been received by the facility, and FRO has not received any dust complaints. The facility is completely paved therefore there should not be any issues with fugitive dust from this site. 7) CLEAN AIR ACT SECTION 112r: The facility does not store or process any of the listed chemicals in amounts that exceed the threshold quantities. Therefore,they are not required to maintain a written Risk Management Plan(RMP). 8) CONCLUSIONS/RECOMMENDATIONS: Based on observations made during the 31 August 2016 inspection, NCEMC - Anson Plant appeared to be in compliance with the requirements outlined in their current air permit. PINK SHEET ITEMS: No additional comments, items to address from previous inspection still remain. /hsc i