Paul Coonan Email & Phone Number

Improved unit availability for a cyclone coal fired boiler by conducting a Root Cause Analysis study of a back path boiler fouling event which resulted in new operating parameters to extend mean time between failures thereby reducing downtime. Three of the most recent runs have made the top 10 longest runs since implementation of corrective action in its 40 year history. Led a cross functional team of employees to develop improved maintenance strategies for sootblower equipment (boiler ash removal equipment) using Failure Mode Effects and Criticality Analysis (FMECA) tools to identify the set of all potential failure modes which resulted in development of better preventative maintenance tasks and improved operator rounds. This process is being duplicated to improve the maintenance programs for all plant equipment.

As key member of multi-disciplined team of 12 engineers, led start up of 2 new Hitachi Scrubbers with multiple technologies, including recycle slurry pump system (11 pumps), bleed system (4 pumps and pH monitoring equipment), gypsum transfer system (3 pumps, tank, and agitator), building sump systems (3 sump pits, 3 agitators, and 5 vertical pumps), mist eliminator wash system (2 pumps and 2 tanks), and emergency quench pumps (2 emergency diesel driven pumps). Brought all systems on-line, on-time, and under budget. • Worked closely with manufacturer to identify and resolve root cause of failure of high speed bearing in all 11 recycle pumps within 1st 5 hours of run. Determined that bearing float was improperly set at factory, and initiated adjustments. All pumps were operational and dependable on operational due date. Pumps have operated 3 to 5 months without failure.• Analyzed high bearing temperatures on motor end of bleed pumps, and determined need for break-in period. Dropped oil level in oil reservoir for better bearing cooling. Bearings have maintained below temperature after successful break in period. Corrected size of orifice, eliminating bleed piping vibration at absorber.• Resolved pipe shake in return of sump pipeline through modification of automatic valve sequencing and adjustment of actuator timings. Solved incorrect sump agitator blade placement by reversing agitator rotation.

Directed project engineering efforts for all balance of plant equipment not associated with boilers within Ameren Merchant Generation Fleet. Led team of 3 Mechanical Engineers and provided engineering support to power plant operations.• Managed outside contract engineer responsible for upgrading cyclones used to inject pulverized coal into the boiler and the addition of over fired air equipment on Ameren’s Edward’s Unit 2. • Supervised the repair of broken coal classifiers, broken coal Ball Mill C, and repairs to leaking coal chutes on Unit 1 at Duck Creek. Classifiers were returned to the manufacturer to repair broken shafts. Repaired leaking trunnion bearing seal on Ball Mill C. Sent the Falk Gear box on Ball Mill C back to manufacturer for overhauling. • Troubleshot the air seal system on Unit 1 Duck Creek. Determined that check valves were installed in wrong location which led to high discharge temperatures on Air Seal Fan A shutdown. Recommend moving check valves to new location so that they could hydraulically open.• Determined that 60”+ valves ordered for Coffeen Crib House project were improperly tested with incorrect NEMA valve tags. Negotiated with Weir to retest valves at their expense saving Ameren $165K.

Directed all facility relocations, new service requests, planning, maintenance, and emergency restoration for Lakeside District. Led team of 6 direct reports, and provided engineering support to 2 operational supervisors and 17 linemen. Worked closely with local officials to address all issues of concern to the public.• Systematically performed reliability studies on 44 feeders, installed additional fuse protection and transformer squirrel cages to limit customer outages, and radio controlled 34kv switches to rapidly restore power after line interruption events.• Established and implemented 5-year plan to address system growth including installation of 2nd transformer at Blue Springs substation, planned future addition of new Four Seasons Substation, new 34kv feeder to feed loads on Horseshoe Bend, and additional transformation to provide redundancy in Turkey Bend area.• Achieved best reliability record for Ameren Districts for 3 consecutive years with annual SAIFI scores of 0.75 or less, with performance in top 10% of all utilities nationwide.• Designed plans to relocate facilities for numerous highway projects to accommodate 10-mile new Highway 54 by-pass, and provided construction plans to relocate facilities for 2-mile extension of Highway HH on Horseshoe Bend.• Led team investigating lack of rapid response by estimators to address new service requests. Proposed scheduling of estimators on initial call, negating 48 hour wait period for new customer. Solution was implemented organization-wide.

Led team of 6 consultants performing reliability studies on outage data to determine most effective methods to reduce customer outages. Developed plan to implement team findings, including decrease in tree trimming cycles. Plan was implemented corporate wide, for significant reduction in customer outages.

Directed gas and electric district engineering offices responsible for facility relocations, new service requests, planning, maintenance, and emergency restoration. Ensured that all annual gas checks required by CFR49 Part 192 of Federal Pipeline Safety Code were performed on time.• Recommended purchase of Stoner Load Analysis program to analyze gas flow within Alton District, cutting costs by $250K in year 1.• Spearheaded upgrade and load relief for overloaded 4kv substations.• Planned and implemented a 12 year replacement program to replace cast iron gas main in Alton District, including replacement of 100 miles of badly decayed cast iron main.

Led team of 2 engineers, and 4 technicians charged with providing technical engineering service to the pipeline operating groups.• Evaluated engineering designs from various turbine and compressor manufacturers for 2 new centrifugal compressor installations at the Calvert City compressor station. Evaluations considered operating conditions of the pipeline, fuel consumption, and ease of maintenance. Recommended purchase of the Solar Corp. turbine-compressor package.• Performed various performance tests on a fleet of 162 reciprocating and 13 centrifugal compressor units. Unit load curves for operator use were developed from this test data. Recommendations for improved unit efficiencies were also made with written test reports.

Charged with performance testing of compressors and their prime-movers. Other testing included hydrostatic testing of new pipe, pipeline flow efficiency testing, pulsation problem evaluation, and compressor vibration analysis.• On special assignment, commissioned and started-up an experimental Tar Sand Extraction plant in Homer, Kentucky designed to produce No. 6 fuel oil. The project was successful in that it demonstrated viability of the Dravo Extraction process to the U.S. Government. However, the production plant was not built due to economic concerns.• Performed several pulsation studies with the assistance of Southwest Research to properly design the suction and discharge volume bottles and piping for new compressor units.• Added additional automated compressor pockets on compressors to shift the operating parameters and improve the efficiency of the compressor units.• Supervised the foundation re-grouting of compressors at the Kenton, Tennessee compressor station designed to realign the crank shaft in the prime mover. • Evaluated the proposed designs of new centrifugal wheels for existing centrifugal compressors at the Calvert City and Harding, Kentucky compressor stations. The redesign was necessary in order to adjust the operating range of the compressor to new operating conditions of the pipeline.• Evaluated the efficiency of several suction and discharge compressor check valves made by different manufacturers to determine the most efficient design to be used across the Texas Gas transmission system.