06-27-2022 BPU RPT 05 - Laserfiche WebLink

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RIVERSIDE PUBLIC UTILITIES Board Memorandum BOARD OF PUBLIC UTILITIES DATE: JUNE 27, 2022 SUBJECT: REQUEST FOR BID NO. 7900 - THREE-YEAR SUPPLY OF 19% AQUEOUS AMMONIA FOR RIVERSIDE ENERGY RESOURCE CENTER, CLEARWATER, AND SPRINGS POWER PLANTS WITH AIRGAS SPECIALTY PRODUCTS, INC. OF LAWRENCEVILLE, GEORGIA FOR TERM ENDING ON JULY 1, 2025, FOR $99,300 ISSUE: Consider awarding Request for Bid No. 7900 to Airgas Specialty Products, Inc. of Lawrenceville, Georgia for a three-year supply of 19% aqueous ammonia for Riverside Energy Resource Center, Clearwater, and Springs Power Plants for term ending on July 1, 2025, for $99,300. RECOMMENDATION: That the Board of Public Utilities award Request for Bid No. 7900 to Airgas Specialty Products, Inc. of Lawrenceville, Georgia for a three-year supply of 19% aqueous ammonia for Riverside Energy Resource Center, Clearwater, and Springs Power Plants for term ending on July 1, 2025, for $99,300. BACKGROUND: Nineteen percent (19%) Aqueous Ammonia (Ammonia) is utilized during the operation of . It is an essential component of the emissions control systems that reduce nitrogen oxide (NOx) emission levels air permit. control systems in the gas turbine industry. It is needed for environmental compliance and essential in keeping air emissions to the lowest possible levels. Having a reliable supply for ammonia is recommended. Each year, all nine gas turbine units must undergo emissions tests by a certified third party to demonstrate compliance with ammonia usage. As such, ammonia usage is constantly monitored, recorded, and regulated by each facilit respective air permits. Figures 1 and 2 illustrate the emissions control systems at the Riverside Energy Resource Center (RERC). At RERC, NOx emissions levels in the exhaust leaving the gas turbine engine equal 25 parts per million (ppm). As the exhaust passes through the emissions control system, a fine mist of vaporized ammonia is injected prior to the NOx catalytic modules. As the exhaust passes through the catalysts, NOx levels are reduced to less than 2.5 ppm.