Unit 4 Repowering Project – Engineering, Procurement, And Construction

The Imperial Irrigation District is soliciting proposals for Engineering, Procurement, and Construction (EPC) services for the Unit 4 Repowering Project at the El Centro Generating Station in California. This comprehensive project encompasses all phases of development, including design, procurement, construction, startup, testing, commissioning, and project closeout. Key technical requirements include the installation of reciprocating internal combustion engine driven generating sets and a 75.0 MVA Generator Step-up Transformer. The scope also involves site work such as geotechnical investigations, road construction, and the implementation of stormwater pollution and protection plans. The contract is governed by a BOP EPC Agreement and requires strict adherence to California professional engineering licensure and prevailing wage laws. Contractors must comply with NERC CIP-013 supply chain cybersecurity standards and provide ISO 9000 certification. Mandatory project requirements include the submission of performance and payment bonds, adherence to a Project Labor Agreement, and compliance with USDA wood packaging and DOT hazardous materials regulations. Proposals are due by October 21, 2026, and must include one original, six hard copies, and a digital version. Performance is subject to rigorous factory and site acceptance testing, with specific guarantees regarding thermal performance, noise emissions, and air emissions.