Project Information

Bid Title

5664 - Unit 1 Combustion Turbine Maintenance and Component Repairs for the Redding Power Plant

Issuing Agency

City of Redding

Location

California

Published Date

Dec 19, 2025

Closing Date

Jan 22, 2026

Government Level

State & Local

Status

Closed

Original Source

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Bid Documents

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Project Description

Open Date	Description	Close Date
December 19, 2025	5664 - Unit 1 Combustion Turbine Maintenance and Component Repairs for the Redding Power Plant OPEN	January 22, 2026

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December 19, 2025

REQUEST FOR PROPOSAL

FOR

UNIT 1 COMBUSTION TURBINE MAINTENANCE AND COMPONENT REPAIRS

FOR THE REDDING POWER PLANT

CITY OF REDDING, CALIFORNIA

(Schedule Number 5664)

In accordance with the provisions of the Municipal Code of the City of Redding, sealed

proposals must be submitted to the City Clerk’s 3rd floor office located at City Hall, 777 Cypress

Avenue, Redding, California 96001 prior to 3:00 p.m. PT, Thursday, January 22, 2026, for

furnishing the City of Redding a proposal for Unit 1 Turbine Maintenance and Component Repairs

for the Redding Power Plant per the specifications and general conditions.

PROPOSALS RECEIVED AFTER THIS TIME AND DATE MAY NOT BE ACCEPTED

OR CONSIDERED.

The said proposals will be opened at 3:00 p.m. PT, on Thursday, January 22, 2026, in the

designated City Hall Conference Room as posted in the main lobby of City Hall, 777 Cypress

Avenue, Redding, California.

An onsite inspection and conference are scheduled for January 5, 2026, at 10:00 am at

the Redding Power Plant. *Notification confirming names of all attendees is required. * See

attached specifications for further details.

The proposer shall provide the original (unbound), one (1) bound copy and a USB drive with

a PDF copy of the proposal. Electronic submission of proposals will not be allowed. One (1) set of

the Fee Proposal is to be submitted in a separate, sealed envelope. The City will award any

resulting contract in a manner consistent with the City Purchasing Ordinance.

The cut-off date and time for receiving questions regarding this bid is 5:00 p.m. PT, on

Wednesday, January 7, 2026. All inquiries must be made in writing and may be submitted to the

email address shown below.

THE CITY OF REDDING

Purchasing Division

Michelle Kempley, Purchasing Officer

mkempley@cityofredding.gov

NOTE

If a potential bidder/proposer received this solicitation document through

some means other than surface mail from the City of Redding (such as from the City

of Redding Internet web site, or from another prospective bidder/proposer), it is the

responsibility of the potential bidder/proposer to advise the assigned City of Redding

Purchasing contact of its intention to submit a bid/proposal so that any addenda or

other correspondence related to this solicitation will be sent to the potential

bidder/proposer. When contacting the Purchasing Division, the bidder/proposer shall

provide the solicitation number located on the cover page of this document.

Transmittal of this information must be in writing, by U.S. Mail, or e-mail.

Transmittal of this information via telephone is not acceptable.

Please submit bid/proposal as directed in the RFP package. Forward to:

City of Redding

City Clerk

777 Cypress Avenue

Redding, CA 96001

Proposals must be received by the City Clerk’s office prior to 3:00 p.m. PT on the date

indicated below. Mailing envelope is to be clearly marked on the outside with the following

notation:

“Proposal for Schedule No. 5664; opening at

3:00 P.M., on Thursday, January 22, 2026”

Note: Signatures must be legible, indicating full first and last name.

The City of Redding

Purchasing Division

REQUEST FOR PROPOSALS

UNIT 1 COMBUSTION TURBINE

MAINTENANCE AND

COMPONENT REPAIRS

AT

THE REDDING POWER PLANT

CITY OF REDDING

(Schedule No. 5664)

Introduction

The City of Redding is soliciting proposals from qualified contractors with proven experience in

gas turbine maintenance and refurbishment to perform a series of repair and replacement activities

on a Frame-5 gas turbine unit. The objective of this project is to restore and improve the condition,

reliability, and performance of the turbine’s enclosure, ventilation, and exhaust systems.

Background

The City of Redding Power Plant is a natural gas fired power station located at 17120 Clear Creek

Road in Redding, California. The facility includes three peaking gas turbines (Unit 1, Unit 2 and

Unit 3), two gas turbines (Unit 5 and Unit 6) that operate in combined cycle with a single steam

turbine (Unit 4) and one hydroelectric turbine (Unit 9).

Project Classification

This project is classified as "maintenance" pursuant to California Public Contract Code (PCC)

sections 22002(d)(1) and 22002(d)(5). The scope of work involves the in-kind replacement and

refurbishment of turbine compartment panels, exhaust components, ventilation silencers, seals,

and associated support elements. These activities are consistent with the statutory definition of

maintenance as "routine, recurring, and usual work for the preservation or protection of any

publicly owned or publicly operated facility" (PCC §22002(d)(1)), and specifically include work

to "keep, operate, and maintain publicly owned... power plants" (PCC §22002(d)(5)). The work

does not alter or improve capacity or function, but instead serves to restore the existing Frame-5

gas turbine unit to safe, reliable operational condition as part of standard plant upkeep.

Accordingly, the City has determined that the work constitutes maintenance and is therefore not

subject to the formal bidding requirements applicable to public projects under PCC §22002(c).

Site Visit & Pre-Submittal Conference

The onsite inspection and pre-submittal conference will begin at 10:00 am., PT on Monday January

5, 2026 at the Redding Power Plant in the administrative office. The Power Plant is located at

17120 Clear Creek Road, Redding, CA, 96001. After a brief introduction and safety briefing the

party will travel to Unit 1 while escorted by REU staff. After the site inspection is complete,

contractors and REU staff will meet back in the administrative office for a brief conference. The

pre-submittal conference will be held for the purpose of reviewing the RFP request documents and

to clarify any questions or concerns in the form of a publicly issued addendum.

Attendance to the site inspections and pre-submittal conference is strongly encouraged. No other

arrangements will be granted for a site inspection. An email RSVP to the contacts listed within

this document are required to attend the site inspection meeting; provide company name and

attending personnel names. Dress for the site inspection shall include at a minimum: pants, fully

enclosed shoes, Type E hard hat, and safety glasses. A hard hat and a pair of safety glasses will be

provided if needed. All site visitors shall follow all directions given by Power Plant personnel

regarding safety. Any cost associated with attending the site visit is the sole responsibility of the

contractor.

Term of Contract

The term of this Contract shall commence upon execution and shall continue until all work

described in the Scope of Services is completed to the satisfaction of the City of Redding and

formally accepted in writing. This is a one-time project with no automatic renewals or extensions.

The Contractor shall diligently prosecute the work to completion within the mutually agreed

outage window and schedule. The Contract shall terminate upon the City’s final acceptance of the

completed work, submission of all required documentation, and release of final payment.

Scope of Work

It is expected each contractor will make additions which they believe, from experience and

judgment, to be beneficial and desirable for the City. It is expected the work will be scheduled and

performed in such a manner that minimum costs will be incurred, and the project schedule will not

be exceeded. The City will only provide the assistance indicated within this request for proposals

(RFP). Additional assistance the contractor will require from the City shall be included within the

contractor’s proposal. It is expected each proposal would include the following tasks:

Tasks – To be completed during Spring 2026 outage (Est March-May 2026)

1. Replace and paint the turbine compartment side panels and roof panel.

2. Replace or refurbish the left and right-side ventilation eductor silencers.

3. Replace the turbine flex seal on the exhaust side.

4. *Investigate the altered cooling & sealing air piping design and determine why the

exhaust frame has no cooling air supply. The cooling air piping to the exhaust frame

has been previously blinded.

5. Repair/Replace exhaust diffuser and adjacent wall panels.

All repairs and replacements shall restore the equipment to OEM performance specifications or

better, and materials shall be equal to or superior to the original construction. All work on the

turbine shall conform to the OEM (General Electric) maintenance instructions and quality

standards, unless otherwise approved by the City.

Contractors are expected to provide a comprehensive proposal detailing their approach, schedule,

safety plan, quality assurance measures, and cost breakdown for completing the above tasks. All

work must comply with applicable industry standards, OEM recommendations, and site safety

requirements. Respondents to this RFP must demonstrate they have the experience, resources,

and abilities required to timely and competently complete the Scope of Work and to provide the

services described herein and in the attachments..

All work performed, outside of the agreed upon scope of work, will be subject to approval by the

City, prior to the commencement of the additional work. Additional compensation may be

available depending on the additional work’s impact to the project. Unless otherwise agreed upon

by the City, the additional work proposal will include, in writing, a maximum not-to-exceed cost

and will be invoiced at the Contractor’s provided time and materials rates or a lump-sum cost that

will be invoiced at the conclusion of the additional work.

Replacement vs. Refurbishment or Rebuild

Wherever possible, the City’s preference is for new replacement components to be supplied and

installed. When new components are unavailable, discontinued, or not cost-effective, the City will

consider refurbishment or rebuilding of existing components as an acceptable alternative, subject

to review and approval.

Contractors proposing refurbishment or rebuild work shall provide detailed documentation

describing the proposed approach, methodology, materials, and processes to be used. This

documentation shall include an explanation of how the refurbished or rebuilt component will

perform relative to a new replacement, including expected service life, performance standards, and

warranty coverage.

The City will evaluate the proposed options for each affected component and will determine, at its

sole discretion, whether replacement, refurbishment, or rebuild provides the best overall value and

serves the City’s operational interests.

*Blinded Cooling and Sealing Air Piping

The Contractor shall investigate and evaluate the existing cooling and sealing air piping

configuration, including the previously blinded connections and any apparent deviations from the

original design. As part of this task, the Contractor shall prepare and submit a written investigation

report documenting observed conditions, root-cause analysis, recommended corrective actions,

and any supporting photographs, drawings, or measurements.

This report is intended to provide the City with sufficient technical detail to determine whether

any corrective work should be performed by the Contractor under this contract or self-performed

by City personnel. Any decision to proceed with modifications, corrective work, or additional

scope will remain solely at the City’s discretion. No repair, modification, or alteration to the system

shall be performed without prior written authorization from the City.

Contractor Responsibilities

1. Contractor shall comply with all applicable federal, state, and local laws and

regulations governing public works and maintenance activities.

2. Contractor shall maintain valid DIR registration and possess the appropriate California

State Contractor’s License (Class A General Engineering) throughout the contract

term.

3. Develop and implement a site-specific Safety Plan compliant with OSHA, Cal/OSHA

and REU regulations.

4. Conduct daily safety meetings and provide documentation upon request.

5. Provide all required PPE and safety equipment for workers and ensure compliance

with plant safety rules, lockout/tagout procedures, and confined-space entry

requirements.

6. Properly handle and dispose of all waste and materials in accordance with local, state,

and federal environmental laws.

Commodity Codes

• NAICS 238220Plumbing, Heating, and Air-Conditioning Contractors
• NAICS 336412Aircraft Engine and Engine Parts Manufacturing
• NAICS 811310Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance

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