RFQ: Liquefied Natural Gas

City of Monroe
Liquefied Natural Gas (LNG)
Peak-shaving Facility Expansion
Request for Qualifications (RFQ)
March 10, 2026
Submittals
Due
2:00 PM E.T.
April 21, 2026

TABLE OF CONTENTS
TABLE OF CONTENTS ..........................................................................................................................2
1) REQUEST FOR QUALIFICATIONS (RFQ) OVERVIEW .......................................................................4
a) General .............................................................................................................................................. 4
I) Introduction and Purpose ............................................................................................................. 4
II) City of Monroe / Energy Services Overview ................................................................................. 4
III) Project Background and Objectives .............................................................................................. 4
IV) Contracting Structure ................................................................................................................... 7
b) RFQ Administration ........................................................................................................................... 8
I) General Instructions ..................................................................................................................... 8
II) RFQ Schedule ................................................................................................................................ 8
III) Questions and Addenda ............................................................................................................... 8
IV) Qualification Submission .............................................................................................................. 9
V) Special Provisions ......................................................................................................................... 9
2) SCOPE OF SERVICES .................................................................................................................. 11
a) Engineering Services ....................................................................................................................... 11
I) Preliminary Engineering.............................................................................................................. 11
II) Complete Engineering Design ..................................................................................................... 11
b) Procurement Services ..................................................................................................................... 12
I) Preparation of Construction Bid Packages ................................................................................. 12
c) Construction Management Services ............................................................................................... 13
I) General Administration of Construction Contract ..................................................................... 13
II) Meetings and Conferences ......................................................................................................... 13
III) Schedules .................................................................................................................................... 13
IV) Visits to Site and Observation of Construction .......................................................................... 13
V) Defective Work ........................................................................................................................... 13
VI) Clarifications and Interpretations ............................................................................................... 13
VII) Disagreements between COM and Contractor .......................................................................... 14
VIII) Change Orders ............................................................................................................................ 14
IX) Shop Drawings and Samples ....................................................................................................... 14
X) Substitutes and/or approved equal ............................................................................................ 14
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XI) Inspections and Tests ................................................................................................................. 14
XII) Applications for Payment ........................................................................................................... 14
XIII) Substantial Completion .............................................................................................................. 14
XIV) Contractor's Completion Documents ......................................................................................... 15
XV) Final Notice of Acceptability of the Work ................................................................................... 15
d) Control Systems Programming and integration.............................................................................. 15
e) Post Construction Services .............................................................................................................. 16
I) Commissioning Support .............................................................................................................. 16
II) Training ....................................................................................................................................... 16
III) Update Manuals ......................................................................................................................... 17
3) SUBMITTAL REQUIREMENTS ..................................................................................................... 17
a) General Introduction ....................................................................................................................... 17
b) Overall firm experience ................................................................................................................... 17
c) Experience of Key Personnel: .......................................................................................................... 18
d) Technical Approach: ........................................................................................................................ 18
e) Project Schedule: ............................................................................................................................ 19
4) QUALIFICATIONS EVALUATION ................................................................................................. 19
a) Evaluation Process .......................................................................................................................... 19
b) Minimum Requirements of Responsive Firm ................................................................................. 19
c) Evaluation Criteria ........................................................................................................................... 20
5) APPENDICES ............................................................................................................................. 20
Appendix A - City of Monroe Sample Contract .................................................................................. 20
Appendix B - City of Monroe Confidentiality and Non-disclosure agreement form (required for
access to other appendices) ............................................................................................................... 20
Appendix C - RFQ Questions Submittal Form..................................................................................... 20
Appendix D - LNG Peak-Shaving Facility Existing Drawings set .......................................................... 20
Appendix E - LNG Facility O&M Manual ............................................................................................. 20
Appendix F - LNG Facility Emergency Procedures Manual ................................................................ 20
Appendix G - LNG Facility Security Procedures Manual ..................................................................... 20
Appendix H - LNG Facility Training Manual ........................................................................................ 20
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1) REQUEST FOR QUALIFICATIONS (RFQ) OVERVIEW
a) General
I) Introduction and Purpose
The City of Monroe, North Carolina Energy Services Department ("City") is soliciting
qualifications from qualified firms to provide professional services for the engineering,
procurement, construction management, and commissioning support associated with
an expansion of the City's existing Liquefied Natural Gas (LNG) peak shaving facility.
The purpose of this Request for Qualifications (RFQ) is to identify firms with demonstrated
experience in the design, expansion, and modification of LNG peak shaving facilities,
including regulatory compliance, safety, construction management, and integration
with existing operating facilities. This RFQ is intended to evaluate a firm's qualifications,
experience, technical capabilities, and overall suitability for the Project.
II) City of Monroe / Energy Services Overview
The City of Monroe is the county seat of Union County, North Carolina within the rapidly
growing Charlotte metropolitan area. The Energy Services department is committed to
providing cost-effective, courteous, and customer-oriented operations to continually
enhance the quality of life for the citizens of Monroe.
The City of Monroe Energy Services owns and operates a natural gas system that
provides energy to approximately 14,400 customers consisting of residential,
commercial and industrial customers over 5,000 DT per day loads. The City of Monroe's
Natural Gas Division operates and maintains 43 miles of natural gas transmission
pipeline, 555 miles of natural gas distribution mains, 25 regulator stations and an LNG
peak shaving facility.
III) Project Background and Objectives
The City's LNG peak shaving facility at 2111 Morgan Mill Rd, Monroe, NC, has been in
operation since 2020. The facility plays a critical role in ensuring system reliability,
managing peak demand, and maintaining cost-effective natural gas supply during
high-demand periods. The rapid growth in the area is causing an increase in the natural
gas system peak demands. This expansion is required to enhance system reliability,
increase peak supply capability, and support anticipated future load growth. The
Project is expected to include modifications and/or additions to existing LNG
infrastructure, including but not limited to storage, vaporization, process systems,
controls, and supporting facilities. The original siting and design included provisions for
this expansion.
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The LNG Peak shaving facility is composed of the following major components:
Table 1 - Existing Facility Specifications
Existing Facility Specifications Specification Values
LNG Storage
* Type / Gross Capacity Two (2), Taylor Wharton, Horizontal, Vacuum-
Insulated, Tanks. Gross volume (water capacity) =
37,600 gallons, each
* Net LNG Capacity 33,850 gallons, each; total = 67,700 gallons
LNG Vaporization
* Type One (1) Chicago Power & Process / Kopetz, 304
Stainless Steel, Shell & Tube Heat Exchanger
* Maximum Flow 250 Thousand Standard Cubic Feet per Hour
(Mscfh)
Equal to ~ 50 Gallons per Minute (gpm) of LNG
* Minimum Flow Approx. 63 Mscfh; equal to ~ 12 gpm of LNG
Natural Gas Sendout Pressure
* Max. Allowable Operating 275 psig
Pressure (MAOP)
* Nominal 260 psig
* Minimum 260 psig
Natural Gas Sendout
Temperature
* Maximum 130 degreesF
* Nominal 60 degreesF
* Minimum -10 degreesF
Fuel Gas for Vaporization Supplied from City of Monroe's 60 psig MAOP Line
Water/Ethylene Glycol
* Concentration 60% Water/40% Ethylene Glycol
* Circulating Flowrate 330 gpm for 250 Mscfh Sendout
* Flowrate to Vaporizers 140 gpm for 250 Mscfh Sendout
* Supply Temperature 180 degreesF
* Return Temperature 150 degreesF (250 Mscfh Sendout)
* Pump Discharge Pressure 50 psig
* Pump Suction Pressure 15 psig
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Existing Facility Specifications Specification Values
Electrical Supply Medium Voltage, 400 Amp, 3, 3-Wire Utility Service
though a Pad-Mounted Transformer with 300 kVA,
480/277 VAC 3-Wire Secondary to a 480 VAC, 400
Amps, 3, 30-Position MCC Enclosure. In Parallel to
the MCC Thru an ATS to a 125 kW Standby
Generator.
Codes and Standards
All the systems of the LNG Peak-shaving facility were designed and constructed in
accordance with the applicable revisions of the following major codes and standards
along with the codes and standards that they reference.
Table 2 - Codes and Standards
Code Edition Description
(193-25) Liquefied Natural Gas Facilities: Federal Safety
49 CFR Part 193
08/06/2015 Standards
(192-124) Transportation of Natural and Other Gas by Pipeline:
49 CFR Part 192
01/22/2019 Federal Safety Standards
Per NFPA
NFPA 54 National Fuel Gas Code
59A-2001
Standard for the Production, Storage, and Handling of
NFPA 59A 2001
Liquefied Natural Gas (LNG)
NFPA 70 2014 National Electric Code (NEC)
Per NFPA
ASME B31.3 Process Piping
59A-2001
ASME B31.8 2016 Gas Transmission and Distribution Piping
Including Pipeline and Hazardous Materials Safety
ASME BPVC
2016 Administration's (PHMSA's) guidance for reference to
VIII
B&PV Section VIII (1992)
NC SBC 2016 North Carolina State Building Code
All new systems shall be designed and constructed in accordance with the latest
applicable revision of the previously mentioned major codes and standards along with
the codes and standards that they reference.
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Original plans included a preliminary expansion design to increase output to 1,000
MSFCH. The design entailed the following:
To be Augmented / Parallelized: To be Retired and Replaced:
* Four (4) 50,000 Gallons LNG Tanks * Existing Vaporizer
* Four (4) LNG Pumps * Existing Water Glycol Pumps
* Two (2) heaters * Existing Heaters
* One (1) backup generator * Sendout Metering and Flow
* Potential Liquefier Control
Key objectives of the project include:
* Increasing LNG storage and send-out capacity
* Increasing boil off natural gas compressor capacity
* Maintaining compliance with all applicable federal, state, and local regulations
* Ensuring safe integration with existing LNG facility and operations
* Minimizing operational disruptions during construction
* Providing reliable, maintainable, and cost-effective infrastructure
* Supporting long-term operational flexibility and future expansion
IV) Contracting Structure
The City anticipates utilizing an Engineering, Procurement, and Construction
Management (EPCM) project delivery method for the Project. Under this approach, the
selected firm will be responsible for providing professional engineering and design
services, preparation of construction bid packages, procurement support, construction
management services, compliance, standard operating procedure development,
personnel training, and commissioning and startup support. Any and all proposed
subcontractors must be disclosed to and approved by the City prior to any work
performed by the subcontractor begins.
Construction work will be performed by one contractor under direct contract with the
City. The EPCM firm will not self-perform construction and will not hold construction
subcontracts.
The EPCM firm will act as the City's representative during construction and
commissioning and will be responsible for coordination, oversight, quality assurance,
schedule management, safety oversight, and technical support.
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b) RFQ Administration
I) General Instructions
This Request for Qualifications (RFQ) is designed to comply with all applicable rules and
regulations including all City of Monroe policies. Firms wishing to submit for consideration
should follow the guidelines established herein.
The complete Appendices and Attachments of this RFQ can be viewed and
downloaded via the following link: https://fileshare.monroenc.org/s/c65DtarsC2oyZze
NOTE: In order to receive Appendix D through H, Firms shall sign and return Attachment
B - Confidentiality and Non-Disclosure Agreement Form via email to Darwin De Los Santos
at ddelossantos@monroenc.org.
II) RFQ Schedule
The City has defined the following schedule regarding this procurement. The schedule is
for information purposes only and is subject to change.
Advertise RFQ 03/10/26
Intent to Respond to RFQ Notice Due 03/17/26
Non-Disclosure Agreement Due 03/17/26
Deadline for RFQ questions 03/24/26
Send questions/answers to interested firms 03/31/26
Deadline for qualifications submittal 04/21/26
Qualifications review complete 04/28/26
Select qualified firm 04/29/26
Contract negotiations 04/29/26
III) Questions and Addenda
All interested firms shall email Darwin De Los Santos, Engineering Manager at
ddelossantos@monroenc.org by 2:00 PM ET, Tuesday March 17, 2026, expressing their
intent to respond to the RFQ and submitting a completed Non-Disclosure Agreement.
Furthermore, all questions regarding this RFQ must be submitted by completing Appendix
C - RFQ Questions Submittal Form, by 2:00 PM ET, Tuesday March 24, 2026, via email to
Darwin De Los Santos at ddelossantos@monroenc.org. The City will provide all firms that
submitted their intent to respond to the RFQ, the answers to the questions and
clarifications submitted by Tuesday March 31, 2026, via email.
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All answers to questions, interpretation/correction, as well as any additional RFQ
provisions that the City may decide to include, will be made only as an official
addendum that will be provided to all firms expressing their intent to respond to this
RFQ. Any addendum issued will become an official part of the RFQ. The City will not be
bound by any oral responses to inquiries or written responses other than written
addenda.
IV) Qualification Submission
Submittals shall be one (1) hard copy delivered by mail and one (1) electronic PDF of
the qualifications.
Submittals are to be sent to:
* City of Monroe - Energy Services
* Attn: Darwin De Los Santos (General Manager of Engineering)
* 2201 Walkup Ave.
* Monroe, NC 28110
* ddelossantos@monroenc.org
Submittals Due: 4/21/2026 by 2:00 PM EST
Qualifications submitted late will not be considered or accepted. The City will not be
liable to any firm for any unforeseen circumstances or delivery delays. Each firm is fully
responsible for submission of their qualifications. Additional time will not be granted to
any single firm; however, additional time may be granted to all firms if/when the City
determines that circumstances are warranted.
V) Special Provisions
No request for modification of this RFQ will be considered after the submittal deadline.
This RFQ will in no manner be construed as a commitment on the part of the City to
award a contract. This RFQ does not obligate the City to accept or contract for any
expressed or implied services.
The City assumes no responsibility or liability for costs incurred by any Firm prior to the
execution of an agreement. By submitting qualifications, the firm agrees to bear all costs
incurred or related to the preparation, submission, and selection process.
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The City reserves the right to reject any and all qualifications, waive any formalities as
may be permitted by law. Waive minor irregularities in the RFQ process or in the
Qualifications; to re-advertise this RFQ; to postpone or cancel this process; select and
procure parts of services in this RFQ; and to change or modify the RFQ schedule at any
time.
It is the policy of the City of Monroe that an employee, officer, or agent of the City may
not participate in any manner in the bidding, awarding, or administering of contracts or
agreements in which they, or a member of their immediate family, their business partner,
or any organization in which they serve as an officer, director, trustee, or employee, have
a financial interest.
In general, documents that are submitted as part of the response to this RFQ will become
public records and will be subject to public disclosure. North Carolina General Statutes
Section 132-1.2 and 66-152 provide a method for protecting some documents from
public disclosure. If a firm follows the procedures prescribed by those statutes and
designates a document "confidential" or "trade secret", the City will withhold the
document from public disclosure to the extent that it is entitled or required to do so by
applicable law.
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