Chemical Water Treatment Services for Glenarm Power Plant

The City of Pasadena, Water & Power Department is seeking the services of qualified Chemical Consultants with a combination of education, experience and specific skills to effectively manage and optimize the plant's water treatment processes at the City’s Glenarm Power Plant located in the City of Pasadena, California.

The City of Pasadena Water & Power Department (PWP) operates the Glenarm Power Plant, which consists of five natural-gas fueled combustion turbines (GT1, GT2, GT3, GT4 and GT5). GT1 and GT2 are 1974 era Curtiss-Wright simple cycle gas turbines. GT3, GT4 and GT5 are modern GE LM6000 gas turbines. GT3 & GT4 are simple cycle units and GT5 is a combined cycle unit equipped with a Shin Nippon Steam Turbine and once-through steam generator (OTSG). All combined, these units can produce about approximately 197 megawatts of electricity.

GT5 unit has a cooling tower that provides circulating cooling water to the steam-turbine condenser, and a closed loop bearing cooling water system. Units GT-3 and GT-4 have cooling towers that provide circulating cooling water to a chiller and cooling for the auxiliary skid.

City water is used as make-up for the cooling towers of Unit GT-3, GT-4 and GT-5.The plant also operates a water conditioning system using reverse osmosis (RO) process. The conditioned water from RO system is used for the make-up of GT-5 OTSG condensate cycle, gas turbines evaporators’ cooler make-up, gas turbines sprint, and water injection for NOx reduction.