HRSG Freeze Protection Services

Tetra Engineering provides comprehensive HRSG freeze protection assessment, engineering, and readiness planning to safeguard combined-cycle plants operating in freezing environments. With decades of experience supporting facilities from Alaska and Canada to Texas and Mexico, we help owners and operators prevent freeze‑related failures, minimize outage risks, and ensure operational reliability under extreme winter conditions.

Contact Us
HRSG Freeze Protection Services

Protecting Your HRSG Assets in Extreme Cold Conditions

Tetra Engineering provides comprehensive HRSG freeze protection assessment, engineering, and readiness planning to safeguard combined-cycle plants operating in freezing environments. With decades of experience supporting facilities from Alaska and Canada to Texas and Mexico, we help owners and operators prevent freeze‑related failures, minimize outage risks, and ensure operational reliability under extreme winter conditions.

Why HRSG Freeze Protection Is Critical

Cold weather can severely impact HRSG systems and auxiliary equipment. Important issues include:·        

  • Keep warm in layup and standby conditions
  • Readiness for start, time to start
  • Keep warm after trips and readiness for restart
  • Re-start after draining HRSG
  • Piping and instrument line protection
  • Post-freeze recovery and testing
  • Wind shielding

These risks pose operational challenges, especially as plants face increasing requirements under NERC EOP‑12 Cold Weather Readiness.

HRSG Freeze Protection Services
HRSG Freeze Protection Services

Experience

Our project experience includes:

  • Freeze damage to pressure parts during construction, commissioning and operation.
  • Proper design and operation of keep warm systems and practices.
  • Issues with restart/startup actions from frozen key instrumentation including flow meters,  drum level sensors and pressure sensors.
  • Issues with support systems such as make up water, tank storage due to freezing.

NERC EOP-12

Tetra Engineering Group can provide your plant with expertise to prepare your NERC EOP-12 Cold Weather Readiness submittal:

  • Review existing freeze protection measures to meet these requirements
  • Corrective Action Plans for any recent Cold Weather Events
  • Identify addition freeze protection measures and recommend actions to implement these
  • Assist in developing documentation evidence of compliance with EOP-12

Tetra has teamed with our partner TG Advisers who provide long experience with Gas and Steam Turbine freeze protection issues complementing our expertise for Steam Generator systems and piping.

Decades of Cold‑Weather HRSG Expertise

With over 20 years of cold-weather support for CCGT plants from Alaska and Canada to Texas and Mexico, Tetra Engineering brings unmatched experience in freeze damage evaluation, keep‑warm design, HRSG system protection, and turbine cold-weather assessments.

Our team understands the challenges of severe ambient conditions, from Arctic wind exposure to sudden freeze-thaw cycles, and provides actionable engineering solutions to protect your assets.

Strengthen Your Freeze Protection Today

Whether you need a full freeze protection plan, NERC EOP‑12 readiness support, or engineering solutions following freeze damage, Tetra Engineering is ready to help.

Contact us today to schedule a field audit or consultation.

HRSG Freeze Protection Services
HRSG Freeze Protection Services
Tetra Engineering logo. Orange triangular pyramid on a black background.Tetra Engineering logo. Orange triangular pyramid on a black background.

Contact Us

To discuss how we might assist you to improve your plant's performance or to maintain its value over time

Contact Us

Related Engineering Support Services

We can tailor our services to your needs

HRSG Freeze Protection Services

HRSG Freeze Protection Services

Tetra Engineering provides comprehensive HRSG freeze protection assessment, engineering, and readiness planning to safeguard combined-cycle plants operating in freezing environments. With decades of experience supporting facilities from Alaska and Canada to Texas and Mexico, we help owners and operators prevent freeze‑related failures, minimize outage risks, and ensure operational reliability under extreme winter conditions.

learn more
HRSG Pressure Parts Replacement

HRSG Pressure Parts Replacement

As your Heat Recovery Steam Generator (HRSG) advances in service life, it is advisable to assess the replacement of pressure components. This proactive evaluation aims to fortify the structural integrity of your unit, mitigate operational and maintenance costs, and extend the overall operational lifespan of the plant.

learn more
Design Review

Design Review

Whether assessing the likely performance of design modifications or getting a second opinion on asset specification, it is important to know that performance expectations will match reality, and that reliability will not be compromised for OEM convenience.

learn more
Owners Engineer / Technical Project Management for Thermal Power Plants

Owners Engineer / Technical Project Management for Thermal Power Plants

The most important factor in making real-world decisions for high-value assets is the availability of unbiased advice. Tetra Engineering has a long history providing engineering advice in the Power Sector.

learn more
Third Party Engineering

Third Party Engineering

When parties have a financial interest in the outcome, independent advice can be essential in finding the right answer among differing opinions. A third-party specialist engineer can provide an unbiased opinion and help make the right choices.

learn more
Expert Witness Services

Expert Witness Services

Tetra Engineering provides consulting services to support clients in dealing with technical disputes involving power generation and thermal process plants, either in the project/construction phase or after commissioning when the plant is in operation.

learn more

Recent Resources

Stay up to date and refer to our large collection of technical white papers and articles

Piping Hangers & Supports
Whitepaper

Piping Hangers & Supports

Piping supports and hangers require routine inspection. Interferences with equipment or structures can c...

Learn more
Reasons for Inspecting
Whitepaper

Reasons for Inspecting

Inspection is part of routine maintenance for any Heat Recovery Steam Generator (HRSG). Visual inspectio...

Learn more
 2025 Tetra Engineering Mechanical Engineering Industrial Placement
News

2025 Tetra Engineering Mechanical Engineering Industrial Placement

Tetra Engineering is a engineering consultancy working in the power generation sector. We specialise in providing engineering and technical support to owners and operators of CCGT power plants, as well as other thermal plants. We have an office near Nice in France and our headquarters is in Connecticut, USA. We support projects worldwide and this includes hands-on fieldwork and back office engineering analysis...

Learn more
Tetra Engineering logo. Orange triangular pyramid on a black background.Tetra Engineering logo. Orange triangular pyramid on a black background.

Contact Us

To discuss how we might assist you to improve your plant's performance or to maintain its value over time

Contact Us