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AAES was selected to provide EPC for the balanced plant equipment. The two sites used the GE LM6000 Gas Turbine. AAES Contract included the EPC for station and unit Programmable Logic Controllers (PLC), local and remote control, substation and electrical interconnection, gas line connection and measurement, and ISO Riggs Interface. AAES was responsible for all the overall startup and commissioning of the site equipment excluding the GE supplied LM6000 gas turbine. GE was responsible for the startup of the GE units. We provided all the connections, and interface between the Station and Unit PLC and work alongside GE for the successful operation of the station. The contract with GE was to provide all the startup support for the LM6000 and to verify the unit efficiency stated by GE. The startup of all balance of plant equipment was the responsibility of AAES.
Acting as Owner's Engineer for the Pacific Gas and Electric in San Francisco, CA, AAES provided a study to evaluate the reliability and performance of the three FT-8 aero-derivative units. AAES recommended the replacement of all the unit controls with state of the art equipment, installation of new local OITs and interface with Potrero Power Plant Unit 3 DCS. AAES wrote the EPC specification and provided the preliminary design required for the EPC specification, provided the EPC evaluation criteria, obtained bids, evaluated the bids, and made final recommendations to the PG&E project Manager. AAES acted as the construction manager and the project manager for all phases of this project. AAES provided PG&E with project estimate, project schedule, cost control, startup assistance, OM&I manual, and training of personnel. AAES evaluated EPC contactor's scope changes, and negotiated the cost and schedule impact on the project. AAES upgraded all of PG&E drawings affected by this project at the conclusion of the successful start.
AAES provided design build balance of plant equipment for seven Pratt and Whitney Power Systems aero-derivative FT-8 sites for peaking service, including station and unit PLC, ISO interface, inlet cooling system, NOx/CO emissions reduction system, gas compressor, switchgear, SCADA, compressed air system, UPS, Batteries, MCC, control room, switchgear room, maintenance shop, demineralizer units, sewer connection, water supply and discharge connections, electrical utility interconnection, metering and telemetry, gas interconnection, water treatment system and control system to form an integrated plant. AAES' team design accommodated daily cycling operation and remote monitoring and operation.
The FT-8 California sites were the Vaca Dixon, Midway, Panoche, El Cajon, Border, Mission, and Escondido Substations. AAES was responsible for activities for the balance of plant equipment including all connection and interface with the FT-8 Units. AAES was responsible for all the overall startup and commissioning of the site equipment excluding the Pratt and Whitney gas turbine. Pratt and Whitney were responsible for the startup of the FT-8 units. AAES provided all the connections, and interface between the Station and Unit PLC and work alongside Pratt and Whitney for the successful operation of the station. The contract with Pratt and Whitney was to provide all the startup support for the FT-8 and to verify the unit efficiency stated by Pratt and Whitney. The startup of all balance of plant equipment was the responsibility of AAES.
AAES was selected to provide:
1) Electrical System upgrade for all of its power plants to include replacement of all UPS and Batteries; Addition of new distribution Panels; provide harmonic tests on all of the 4KV System; modify and
relocate loads to provide some sort of balanced load; test all of the electrical systems in accordance with NETA Standard; and relocate equipment to comply with NFPA.
2) Upgrade the 1948 Vintage Control Pneumatic control system with state-of-the-art PLC has demonstrated experience in plant engineering, design, operation, maintenance, startup and facilities electrical &
control systems.
AAES provided EPC specifications to PG&E and the VA hospital in San Francisco. Typical EPC specifications developed for use in PG&E power plants include Replacement of Circulating water Pump Systems
(included new circulating water pumps, VSDs, PLCs, Pressure and flow transmitters, cables and interface with station DCS). The EPC specification included complete system descriptions, site specification and
design conditions, conditions of performance, functional requirements, project operation, project construction, noise, detail site work, building work, utilities requirements and work, and list of
deliverables with milestone schedule. AAES was the construction manager and assisted in startup. AAES provided preliminary engineering design in support of the EPC specifications.
AAES has successfully negotiated EPC contracts in support of PG&E's NOx modifications program for its conventional steam boiler fleet. These included contracts awarded to Stone and Webster and Babcock and Wilcox (B&W) for overall program support, and to B&W, Mitsubishi, Todd Combustion, and others for specific installations at Contra Costa, Pittsburg, and Moss Landing Power Plants.
