Maximize efficiency in power generation

Flexible waste heat recovery solutions from Alfa Laval

Alfa Laval Aalborg waste heat recovery solutions for engine systems and gas turbines are optimized to suit your power plant’s needs. Whether you want to extract the maximum amount of heat energy from the exhaust gas or only as much as necessary to cover internal plant requirements, we can deliver the most cost-efficient solution. With our leading boiler technology and vast expertise, you can boost fuel efficiency and plant efficiency overall – significantly reducing your CO2 footprint.

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Why turn to Alfa Laval for waste heat recovery?


Leading energy savings

Alfa Laval Aalborg waste heat recovery systems provide the best overall performance in the power generation industry. They recapture the maximum amount of energy possible, which results in the shortest payback time for investment – often less than a year, depending on project specifications. Expect a 15% improvement in fuel-to-electricity efficiency in combined cycle, and/or a 95% improvement in plant efficiency in combined heat and power applications.


Profitable flexibility

Our Alfa Laval Aalborg waste heat recovery boilers enable fast ramp-up, which means you can take your power plant offline and start it up again easily. That lets you save fuel and money by using wind and other energy sources when available – with no negative impact on your waste heat recovery system’s efficiency. When your boiler systems are restarted, they quickly return to top performance, where they maximize your profits.


Optimized scope of supply

Equally suited to new power plants or retrofit projects, Alfa Laval Aalborg waste heat recovery solutions are tailored to your requirements. Select individual waste heat recovery boilers, or choose turnkey envelope solutions that minimize footprint and capital investment. Our delivery scope offers all the support you need, from concept development and engineering consulting to modular delivery and onsite works.

Alfa Laval waste heat recovery in numbers

  • >1500 Alfa Laval Aalborg waste heat recovery boilers at sites in over 100 countries
  • 4.6 GW of installed waste heat recovery capacity worldwide
  • 15% improvement on fuel-to-electricity efficiency in combined cycle
  • 95% improvement in plant efficiency in combined heat and power applications.
  • 8.7 million tonnes of CO2 emissions saved annually
  • <1 year to investment payback possible in best cases
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Envelope waste heat recovery solutions

Besides individual Alfa Laval Aalborg waste heat recovery boilers and auxiliary equipment, we can design and deliver compact, cost-saving envelope solutions for your power plant. Our envelope solutions are turnkey waste heat recovery systems, complete with boilers, integrated platforms, steel structures, piping and wires/cabling. As well as providing the equipment, we can handle the onsite installation, commissioning and service.

Why envelope solutions?

  • Resource efficiency – five times less steel needed
  • Space savings – minimized footprint
  • Easy acquisition – one-stop shop for design, installation and commissioning
  • Minimized downtime – faster and smoother installation
  • Less total CAPEX – significantly reduced investment


Component-based system
More steel, space and investment


Envelope solution
Savings on steel, footprint and more

Engine waste heat recovery

Modern engine systems are considerably more efficient than their predecessors, but much of the fuel energy is still wasted as heat. Alfa Laval Aalborg waste heat recovery solutions maximize the energy you get from your fuel, ensuring that your power plant can use less and profit more. Their compact design is as suitable for retrofits as it is for new plants.

  • Smart technology for flexible operation – designed for frequent and quick ramp-ups
  • Effective operation with minimized capacity loss between off-service cleanings
  • Vibration- and pulsation-resistant structure

Explore solutions

Alfa Laval Aalborg AV-6N

Alfa Laval Aalborg H/HW

Waste heat recovery in engine power plant

Optimizing boiler response times in waste heat recovery solutions

Investing in waste heat recovery (WHR) boilers for internal combustion engines and gas turbines presents a unique opportunity that benefits operating economy as much as it does the environment. By recapturing energy and putting it to use, they reduce both fuel consumption and emissions, which lowers operating expenses. This paper focuses on the heat recovery boiler system, and how to identify start-up bottlenecks and related factors.

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A clean path to added revenue for Tucson Electric Power

Waste heat recovery is less common after reciprocating internal combustion engines (RICE), but Tucson Electric Power is using Alfa Laval Aalborg AV-6N units to save a potential 22,000 metric tons of CO2 emissions annually.

Learn more

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Lucky Cement saves fuel and money in combined cycle

Lucky Cement turned its 70 MWel engine power plant into a combined-cycle power plant (CCPP). With Alfa Laval Aalborg units providing 27 MWth of waste heat recovery, the plant generates savings in the form of 6 MWel of electric output.

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Cengiz Enerji increased combined-cycle output by 40%

When converting from the use of heavy fuel oil to natural gas at its Samsun combined-cycle engine powerplant, Cengiz Enerji nearly doubled the steam cycle output by 40% by adding new Alfa Laval Aalborg AV-6N boilers and superheater units.

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Gas turbine waste heat recovery

Gas turbine waste heat recovery

Gas turbine power plants are often designed for flexible operation. In both cogeneration and combined-cycle applications, the heat recovery steam generator (HRSG) must react quickly to changes in turbine load. Alfa Laval waste heat recovery systems offer rapid response that boosts your power plant’s revenue, and their layout is adaptable to new plants or retrofit needs.

  • Smart technology for flexible operation – designed for frequent and quick ramp-ups
  • Modular system design that reduces installation time and costs
  • Maintenance scheduled to match gas turbine overhauls


Alfa Laval offers a wide range of services for waste heat recovery systems at land-based power plants. Through regular site audits, together with correct spare parts and training, you not only ensure optimal plant operation but also secure system efficiency and safety.

The Alfa Laval 360° Service Portfolio covers all your needs throughout the life cycle of your equipment — from start-up, maintenance and support to improvements and monitoring services. As our waste heat recovery systems continue to develop, we make new advances available as upgrades, so that you can keep performance at the highest possible level over your solution’s lifetime.

Contact our Alfa Laval Aalborg service team

Let’s discuss your needs

Alfa Laval Aalborg waste heat recovery solutions build as much on our expertise as they do on our leading technology. Let’s talk about your needs, so that we can provide a solution that truly boosts your power plant’s efficiency.

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Contact us




Matias Pessa
Global Sales Manager, Power

Alfa Laval Aalborg Oy
Kaivopuistontie 33, 26100 Rauma, Finland
Tel. +358 10 838 3800