Heat Recovery Steam Generators

750 John Cockerill HRSG's installed worldwide

Reliability, performance, reduced costs

Heat recovery steam generators constitute a key element in the energy performance of electric power plants. They are also at the heart of our history. To design and propose innovative heat recovery steam generators solutions, John Cockerill Energy is able to combine over 200 years of expertise with its desire to conceive the technologies of tomorrow. The innovations that our teams develop on a daily basis make it possible to reduce electricity costs, increase the performance and reliability of installations and limit their price.

Innovation at the service of your economic and ecological challenges

Our teams are attentive to the evolving needs of our customers. In addition to meeting your economic requirements, John Cockerill solutions meet your environmental challenges, notably by reducing NOx and CO emissions and by daring to combine with equipment based on renewable resources, such as green hydrogen. Hydrogen is increasingly positioning itself as an alternative fuel to natural gas for turbines. The evolutionary design of our steam generators allows them to be already adapted to these new generation turbines. Our teams continue to invest in future developments alongside the turbine manufacturers.

Solutions adapted to the requirements of each project

As a recognized independent Original Equipment Manufacturer (OEM), John Cockerill Energy partners with all turbine partners and meets the needs of all customers (EPCs, gas turbines, steam turbines…). We master both vertical and horizontal Heat Recovery Steam Generator (HRSG) technologies.

Our HRSGs are particularly suitable for operation in frequent start-stop cycles. They operate in combined gas-steam, solar thermal or cogeneration cycles. They can be installed behind gas turbines of any power: from 25 MW ISO to 500+ MW ISO; of any brand: GE, MHPS, Ansaldo, Siemens and others; burning any type of fuel: natural gas, refinery gas, synthetic gas, green hydrogen and light and heavy crude oils. Our teams work alongside you to develop and provide, together, solutions and services adapted to the requirements of each new project or reconditioning of existing sites or maintenance, modernization and repair projects for boilers of all brands. For more information about our Aftersales services, please click here.

Specific made-to-measure equipment

John Cockerill Energy also assists its customers in the development of equipment specific to their needs:

  • Additional combustion burners upstream or between heat exchangers
  • Degassing tarpaulins and its associated systems
  • Catalysts for the reduction of NOx (SCR) or CO
  • Boiler building
  • Auxiliary systems (chemical injection, sampling, nitrogen injection for inerting)
  • Soot blowers
  • Combustion air fans for specific applications
  • Gas turbine exhaust combustion gas bypass equipment

On the Latin American market, John Cockerill Energy has its own specialised workshop, expert in the manufacture and maintenance of very high temperature heat exchangers.

Available files

Brochure HRSG

HRSG Reference List

Case Study - HRSG Besmaya

Case Study - HRSG Besmaya III

Case Study - HRSG Blenod

Case Study - HRSG Bouchain

Case Study - HRSG Grati

Case Study - HRSG Grati II

Case Study - HRSG Gresik

Case Study - HRSG Hamitabat

Case Study - HRSG King's Lynn

Case Study - HRSG Manuel Belgrano

Case Study - HRSG Martigues

Case Study - HRSG Mary

Case Study - HRSG Pont-sur-Sambre

Case Study - HRSG Rompetrol

Case Study - HRSG Shoaiba

Case Study - HRSG Sousse C

Case Study - HRSG Sousse D

Case Study - HRSG Takoradi

Case Study - HRSG Tanjung Priok

Case Study - HRSG Tashkent

Case Study - HRSG Termocandelaria

Case Study - HRSG Topolobampo

Case Study - HRSG Whitegate

Brochure Once Through Boiler

Brochure Once Through Boiler - West Africa Project

Related pages


Vertical Heat Recovery Steam Generators


Once Through Boilers (OTB)


Marine boilers


Modular Small boilers


Horizontal Heat Recovery Steam Generators