Unit 4 Repowering Project – Engineering, Procurement, and Construction Services

The Imperial Irrigation District is seeking an Engineering, Procurement, and Construction contractor to design, build, and commission a 113 MW natural gas-fired reciprocating internal combustion engine generating facility at the El Centro Generating Station in California.

Imperial Irrigation District


General
Open
SRFP 555
Nov 26, 2026 12:00 AM
Jul 24, 2026 11:35 PM
3 years 3 months
Request for Proposal (RFP)
Local
Ask AI about this solicitation
Contact
purchasing@iid.com
+17603399253
Imperial, CA, USA
Submission Instructions
Mail
235 East Barioni Boulevard, P.O. Box 937, Imperial, CA 92251-0937

or

Hand delivery or common carrier
Description

The Imperial Irrigation District is soliciting proposals from qualified Engineering, Procurement, and Construction contractors for the El Centro Generating Station Unit 4 Repowering Project. The scope includes detailed engineering, procurement, construction, startup, testing, commissioning, and closeout for a new approximately 113 MW natural gas-fired reciprocating internal combustion engine generating facility replacing the existing Unit 4 boiler. The contractor must deliver a complete, integrated facility supporting six owner-furnished Wartsila generating units, associated balance-of-plant systems, electrical interconnections, fuel gas, water, fire protection, HVAC, emissions-control support, physical security, communications, buildings, site preparation, demolition, utilities, foundations, operator training, documentation, warranties, and performance guarantees. The revised solicitation package requires use of the provided response forms and a proposal limited to 50 double-sided pages, excluding specified materials. Required response materials include the completed response forms, technical and management narratives, project organization and key-personnel information, resumes, experience and technical competence information, proposed methodology, a detailed project schedule, a fixed-price cost proposal with unit labor rates and milestone payment schedule, and applicable supporting items such as a surety bonding-capacity certification letter, subcontractor commitment letters, emissions-compliance documentation, and subcontractor certifications. The proposal must acknowledge the Project Labor Agreement; failure to submit that acknowledgment is disqualifying. The project is subject to prevailing-wage, California contractor licensing, Department of Industrial Relations registration, insurance, bonding, safety, environmental, and cybersecurity requirements. The contract term is approximately 39 months, with commercial operation targeted for July 2030.

Classification Codes
NAICS221112Fossil Fuel Electric Power Generation
PSCC1MBARCHITECT AND ENGINEERING- CONSTRUCTION: EPG FACILITIES - GAS
Smart Codes
natural gas power plantepc servicespower generation equipment
Specifications
Supply & Service
Timeline
Jul 24, 2026-Bid Posted Date
Aug 18, 2026-Mandatory Meeting and Jobwalk (required)
Attendance for the entire meeting was required to submit a proposal. Firms that attended this meeting are not required to attend the second mandatory meeting.
Sep 16, 2026-Second Mandatory Meeting and Jobwalk (required)
Firms that attended the first mandatory meeting are not required to attend. Hard hats, closed-toe shoes, government-issued identification, advance check-in, and attendance for the entire meeting are required.
Sep 22, 2026-Questions Due Date
Sep 24, 2026-Answers Posted
Nov 25, 2026-Proposal Due Date
Requirements
Required
  • Commercial General Liability — $25,000,000.00
  • Business Auto Liability — $10,000,000.00
  • Workers' Compensation/Employers' Liability — $10,000,000.00
  • Professional Liability — $10,000,000.00
  • Contractor's Pollution Liability — $10,000,000.00
  • Hazardous Transporters Pollution Liability — $10,000,000.00
  • Cyber Liability/Technology Errors and Omissions — $5,000,000.00
Required
  • Bid Bond
  • Payment Bond — 100%
  • Performance Bond — 100%
Required
  • Minimum 3 references
  • Within the last 5 years
  • Client point of contact required for each reference
No
Location
'Fossil Fuel Electric Power Generation' Opportunities
Energy Production and Power Generation

The National Science Foundation is seeking proposals for energy production and power generation tech...

Due in 10 monthsUnited States of America > NATIONAL SCIENCE FOUNDATION
Electricity Supply for Youngstown Air Reserve Station

The U.S. Air Force is seeking a PUCO-registered electricity generator to supply approximately 9,275,...

Due in 4 daysUnited States of America > DEPT OF DEFENSE > DEPT OF THE AIR FORCE > FA6656 910 AW LGC YNGSTN WRN ARPT (AIR FORCE RESERVE COMMAND)
Low- and Moderate-Income Consumer-Owned Energy Projects

The Maine Public Utilities Commission is seeking proposals to sell energy from low-income and modera...

State of Maine > Public Utilities Commission
New Cummins Generators

Chautauqua County is seeking sealed bids for new Cummins generators under Invitation to Bid No. E-5-...

Due in 5 daysChautauqua County
New Diesel Generator

The Jefferson Parish Sheriff's Office is seeking sealed bids for a new diesel generator, with bids d...

Due in 25 daysJefferson Parish > Sheriff's Office
Energy Technologies

The National Science Foundation is seeking proposals for the Energy Technologies topic, covering new...

Due in 10 monthsUnited States of America > NATIONAL SCIENCE FOUNDATION
800 kW Diesel Generator Sets and Components

The Defense Logistics Agency is seeking sources for diesel engines, generator sets, starter motors, ...

Due in 4 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AT ABERDEEN (DLR PROCUREMENT OPERATIONS - ZL)
Emergency Generators and Installation Services

Harris County is seeking a contractor to provide emergency generators and installation services for ...

Due in 2 daysHarris County
Wood Pyrolysis Demonstration Unit

Burlington Electric Department is seeking proposals to design, permit, build, finance, own, and oper...

Due in 18 daysCity of Burlington > Burlington Electric Department
Local Renewable Energy and Energy Storage RFI

San Diego Community Power is requesting information for new and existing wholesale renewable generat...

San Diego Community Power
Replacement of the Power Plant Emergency Generator

The City of Columbia is requesting bids to furnish and install a new 130 kW minimum natural-gas emer...

Due in 18 daysCity of Columbia > Purchasing Division
Municipal Aggregated Electrical Supply and Related Services

The City of Mission is requesting proposals for municipal aggregated electrical supply and related e...

Due in 11 daysCity of Mission
Electric Carrier Contract

Chenango Forks Central School District is requesting sealed bids for an electric carrier contract.

Due in 10 daysChenango Forks Central School District
All-Source Power Supply Resources

Guzman Energy, LLC is seeking proposals from invited respondents for short- and long-term power supp...

Due in 6 daysGuzman Energy, LLC
Distributing System

The Defense Logistics Agency is seeking a contractor to supply miscellaneous electric power and dist...

Due in 2 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA AVIATION AT PHILADELPHIA, PA (DLR PROCUREMENT OPERATIONS [AP])
Competitive Electricity Supply Services

The University of Maine System is seeking quotations from qualified electricity suppliers to provide...

Due in 12 monthsUniversity of Maine System
Cal CLEAN Partnership Agreement

The California High-Speed Rail Authority is seeking qualified private-sector developers to originate...

Due in about 2 monthsCalifornia > High-Speed Rail Authority
Emergency Power Generator Replacement

Dallas County is seeking a contractor to replace the emergency power generator at the Medlock Reside...

Dallas County > Purchasing Department
Cummins Standby Generator Sets

Chautauqua County is seeking sealed bids for five new Cummins standby natural gas/LP vapor generator...

Due in 5 daysChautauqua County > Finance Department > Purchasing Division
Mobile Propane-Fueled 50 kW Generators

Parks Canada Agency is seeking mobile propane-fueled 50 kW generators, including delivery, commissio...

Due in 17 daysGovernment of Canada > Parks Canada Agency
Clean Power Pasadena Partnership - Renewable Energy Facilities

The City of Pasadena's Water and Power Department is seeking proposals for distributed generation re...

Due in about 2 monthsCity of Pasadena > Water and Power Department > Power Supply
Marine Corps Base Hawaii Energy Resilience and Generation Project

The Department of the Navy is notifying potential developers about a Hawaiian Electric Company RFP f...

Due in 3 monthsUnited States of America > DEPT OF DEFENSE > DEPT OF THE NAVY
Energy Harvesting Devices and Systems

The National Science Foundation is seeking proposals for the development of energy harvesting device...

Due in 10 monthsUnited States of America > NATIONAL SCIENCE FOUNDATION
Liquid Cooled Natural Gas Engine Generator Set

The Chicago Housing Authority is seeking a 500 kW liquid-cooled natural gas engine generator set for...

Chicago Housing Authority
Opportunities Near Yuma, Arizona
On-Call Truck Hauling Services

Imperial County Department of Public Works is seeking qualified vendors to provide on-call truck hau...

Due in 3 daysImperial County > Public Works Department
Culvert Rehabilitation on Route 111

The California Department of Transportation, District 11, is seeking a contractor to repair six culv...

California > Department of Transportation > District 11
Mass Property Instrument Calibration and Maintenance Services

The U.S. Army Yuma Proving Ground is seeking capability statements from firms able to provide annual...

Due in 13 daysUnited States of America > DEPT OF DEFENSE > DEPT OF THE ARMY > W6QM MICC-YUMA PROV GRD
East Highline Reservoir and Intake Canal Construction

Imperial Irrigation District is requesting proposals for construction of a 2,100-acre-foot off-line ...

Due in 2 monthsImperial Irrigation District > General Services Department > Purchasing Section
Veterinarian Recruitment and Retention Program

Imperial County, California is seeking qualified veterinarians and final-year veterinary students to...

Due in 2 monthsImperial County > Purchasing Department
Salton Sea West Flood Resilience Study

The California Department of Transportation is seeking a consultant to conduct the Salton Sea West F...

Due in 11 daysCalifornia > California Department of Transportation > Division of Procurement and Contracts
Urban Greening and Vegetative Barrier Grant Projects

Imperial County Air Pollution Control District is seeking grant applications for urban greening and ...

Due in about 2 monthsImperial County > Imperial County Air Pollution Control District
Hot Mix Asphalt Materials

Imperial County Department of Public Works is seeking one or more vendors to supply 1/2-inch hot mix...

Due in 26 daysImperial County > Public Works Department
Data Center Power and Cooling Support

The U.S. Army Yuma Proving Ground is seeking sources capable of providing critical data center power...

Due in 11 daysUnited States of America > DEPT OF DEFENSE > DEPT OF THE ARMY > W6QM MICC-YUMA PROV GRD
Cable Assembly, NSN 6150-01-667-7924

The Defense Logistics Agency is requesting a quotation for one cable assembly, NSN 6150-01-667-7924,...

Due in 6 daysUnited States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY
Plumbing, Electrical, HVAC and General Construction Services

The City of Somerton is seeking qualified contractors for plumbing, electrical, HVAC, and general co...

Due in 5 daysCity of Somerton
Job Order Contract for Plumbing, Electrical, HVAC, and General Construction Services

The City of Somerton, Arizona is requesting qualifications for a job order contract covering plumbin...

Due in 10 daysCity of Somerton
Public Works Fleet Vehicle Purchases

Yuma County is seeking bids for new sedans, SUVs, pickup trucks, vans, and other fleet vehicles, inc...

Due in 26 daysYuma County > Department of Public Works
Winterhaven Border Protection Station Generator Replacement

The California Department of Food and Agriculture is seeking a contractor to demolish and replace th...

Due in 18 daysCalifornia > California Department of Food and Agriculture
Imperial National Wildlife Refuge Swing Gate Installation

The U.S. Fish and Wildlife Service is seeking a small-business contractor to fabricate and install o...

Due in 9 daysUnited States of America > INTERIOR, DEPARTMENT OF THE > US FISH AND WILDLIFE SERVICE > FWS, SAT TEAM 2
Vehicle Towing and Site Cleanup

The Bureau of Land Management is seeking a contractor for abandoned-vehicle towing, removal and disp...

Due in 10 daysUnited States of America > INTERIOR, DEPARTMENT OF THE > BUREAU OF LAND MANAGEMENT > ARIZONA STATE OFFICE
Melon Road Pedestrian Improvements - Phase II

The City of Holtville is seeking a contractor for the construction of approximately 650 linear feet ...

City of Holtville
Melon Road Pedestrian Improvements - Phase I

The City of Holtville is seeking a contractor to construct approximately 650 linear feet of sidewalk...

City of Holtville
Melon Road Pedestrian Improvements - Phase III

The City of Holtville is seeking a contractor to construct approximately 650 linear feet of sidewalk...

City of Holtville
Residential Water Conservation Kits

The City of Calexico is seeking bids for approximately 4,000 to 4,100 assembled residential water co...

Due in 6 daysCity of Calexico
Climate-Controlled Inspection Booth Installation

The California Highway Patrol is seeking a contractor to furnish and install three climate-controlle...

Due in 5 daysCalifornia > Department of California Highway Patrol > Business Services Section
Design Services for Adrian C. Cordova Memorial Park

The City of Calexico is seeking a qualified design firm to prepare three conceptual park design alte...

Due in 6 daysCity of Calexico
Gigamon Chassis Refresh and Software Support Renewal

Riverside County Information Technology is requesting two separate quotes for a Gigamon GigaVUE-HC1 ...

Due in 5 daysRiverside County > Information Technology
Uninterruptible Power Supply Maintenance and Services

The County of Riverside is requesting quotations for quarterly and annual uninterruptible power supp...

Due in 12 daysRiverside County > Purchasing and Fleet Services > Riverside County Sheriff's Office
Communication Towers Installation

Eastern Municipal Water District is seeking a contractor to install three communication towers (40' ...

Eastern Municipal Water District