B52-B53 Final Transition Duct Liner System Replacement

Jacksonville Electric Authority is soliciting proposals for engineering, design, fabrication, and installation of transition duct liner sections G, H, and J for two gas turbine units at Brandy Branch Generating Station, with responses due September 15, 2026, and a mandatory pre-response meeting on August 24, 2026 at 11:00 AM EST via Microsoft Teams.

Bidders must meet minimum qualifications: not appear on state or local vendor suspension or debarment lists, and successfully complete three similar projects within the past five years totaling at least 3,000 square feet or $200,000 per project. JSEB (Jacksonville Small & Emerging Business Program) certified subcontractors are required where applicable; Tier 2 and Tier 3 diverse subcontractor participation is optional.

The scope encompasses complete demolition and removal of existing liner and insulation in sections G, H, and J of the Heat Recovery Steam Generator transition duct on each unit, followed by fabrication and installation of replacement systems across all four surfaces per section. Interior liner panels must be 10 gauge Type 409 stainless steel; exterior shell must be ASTM A36 steel minimum; all hardware must be Type 304 stainless steel. Insulation must be 8-inch thick ceramic fiber blanket rated at 2,300 degrees Fahrenheit. The contractor must perform aerodynamic and structural analysis; design the system to interface with existing structural steel supports; and ensure exterior shell temperature does not exceed 160 degrees Fahrenheit under normal operating conditions. Work must comply with ASTM, AWS, AISC, and OSHA standards, confined space entry procedures, hot work permits, and dust-free material removal. The tentative outage schedule runs March 11 through April 18, 2027, providing 38 days for completion including operational shutdown, startup, and testing.

Contractor must furnish all labor, supervision, materials, cranes, subcontractors, and scaffolding. JEA provides limited electrical power and arranges asbestos testing with cost reimbursement. Bid security of 5% is required; 100% performance bond and payment bond are required upon award. Pricing is evaluated on lowest-bid basis; liquidated damages apply to project completion deadlines. Award will be made within 30 days; contract execution required within 10 days of award. Subcontractor payment terms: prime contractor must pay subcontractors within 10 days of JEA payment, with JSEB-certified firms receiving same or better terms, payable within three days of invoice receipt.