CRN Registration for Power Generation and Cogeneration Equipment

Reviewed by CRN expert team · Last updated: August 10, 2026

Power generation and cogeneration facilities contain extensive pressure equipment (boilers, steam turbines, HRSGs, condensers, feedwater heaters, and associated piping) all requiring CRN registration. Kopfkino provides CRN registration services for conventional thermal plants, natural gas cogeneration facilities, and distributed energy systems.

Power Generation Equipment Requiring CRN

• Boilers and HRSGs: steam generation at high pressure and temperature
• Steam turbine casing and associated pressure parts
• Feedwater heaters: tube-side at high pressure
• Deaerators: pressure vessels for oxygen removal from feedwater
• High-pressure steam piping: ASME B31.1 power piping
• Pressure relief valves and safety valves (Category A fittings)

The equipment on this list spans two code environments. Steam generation equipment follows the boiler rules, while the power piping between components follows its own piping code. Recording which code governs each item at the scoping stage prevents a submission from presenting the wrong calculation basis to the reviewer.

HRSG CRN Registration

Heat Recovery Steam Generators are complex multi-circuit boiler systems recovering waste heat from gas turbine exhaust. HRSGs contain multiple pressure circuits at different pressures (HP, IP, LP steam) requiring ASME Section I registration. Kopfkino manages HRSG CRN registration from engineering to authority submission.

A Heat Recovery Steam Generator recovers waste heat from gas turbine exhaust and contains multiple pressure circuits at HP, IP, and LP steam levels. Those circuits are the reason this page describes the unit as a complex multi-circuit boiler system requiring ASME Section I registration.

Frequently Asked Questions

Is a steam turbine casing a pressure vessel requiring CRN?

Yes. Steam turbine casings operating above threshold conditions are pressure vessels requiring CRN registration.

"The single most expensive CRN mistake we see is treating registration as an afterthought. Design for CRN from day one: pick your provinces early, align the calculations with CSA B51 before the drawings are finalized."