Whitepaper
Piping Hangers & Supports
Piping supports and hangers require routine inspection. Interferences with equipment or structures can c...
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.
Cold weather can severely impact HRSG systems and auxiliary equipment. Important issues include:
These risks pose operational challenges, especially as plants face increasing requirements under NERC EOP‑12 Cold Weather Readiness.
Our project experience includes:
Tetra Engineering Group can provide your plant with expertise to prepare your NERC EOP-12 Cold Weather Readiness submittal:
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.
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.
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.
We can tailor our services to your needs
Stay up to date and refer to our large collection of technical white papers and articles
Idle periods are getting longer as plants move to cycling or standby, and corrosion during layup can do serious damage. Pitting can penetrate a tube wall in a few weeks. In the October 2026 issue of Modern Power Systems, Misha Gadher and James Malloy of Tetra Engineering Europe compare five preservation methods and show how one coastal combined cycle plant matched each method to each system for a six-month shutdown.
