Wärtsilä Energy

 

Leading the energy transition

Wärtsilä Energy is at the forefront of the transition towards a 100% renewable energy future. We help our customers and the power sector to accelerate their decarbonisation journeys through our market-leading technologies and power system expertise.

Our solutions include flexible engine power plants, energy storage and optimisation technology, and services for the whole lifecycle of our installations. Our engines are future-proof and can run on sustainable fuels.

Our track record comprises 79 GW of power plant capacity and over 130 energy storage systems in 180 countries around the world. Over 30% of our operating installed base is under service agreements.

 

Our proudest numbers

79 GW

of power plant capacity installed.

130+

energy storage installations delivered.

30%

of operating installed base under service agreements.

Market-leading energy solutions

With a deep understanding of the energy transition and power systems, we can help our customers find their optimal and most efficient path towards 100% renewable energy, while​ balancing and future-proofing their power systems as demanded by the flexible grids of the future. 

Our offering consists of a wide range of flexible solutions that provide optimised and reliable energy. We enable the transition to renewable energy with flexible engine power plants and energy storage technology.

We support our customers over the lifecycle of their installations ensuring performance and competitiveness in a safe, reliable and sustainable way.

  • DJI_0747-Enhanced-NR
    Shaping the energy transition

    We are at the forefront of the transition towards a reliable, affordable and a 100% renewable energy future.

    Learn more
  • Discover our Energy Insights

    Dive into our collection of energy content, where industry leaders share their insights on the dynamic and transformative energy transition happening across the globe.

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We are your global partner with local expertise

Supporting our customers globally is at the heart of Wärtsilä Energy's mission. We have established a robust geographical presence, with operations spanning over 70 countries worldwide.

Our strategic locations enable us to deliver innovative energy solutions tailored to the unique needs of each region. From Europe to Asia, Africa to the Americas, we are committed to driving the transition towards a 100% renewable energy future.

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Read more about our customers' successes

  • Benndale, Missisippi, USA

    Enabling an increase in variable generation with more flexible capacity that can rapidly start up when needed.

    Read more
    Benndale, Mississippi, USA
  • McArthur River Mine, Australia

    Wärtsilä supplied six 20V34SG gas engines totaling 53 MW to power Australia's McArthur River zinc mine, ensuring reliable, efficient energy under extreme heat through a long-term, condition-based maintenance partnership with EDL.

    Read more
    MCARTHUR RIVER MINE - AUSTRALIA
  • Clearway Energy Group

    Supporting the clean energy transition in California and Hawaii

    Read more
    CEG_Wärtsilä ES&O_2022_855x430

R&D and innovation for tomorrow's energy future

Tomorrow’s energy landscape is being reshaped by new technologies and regulation in unforeseen ways.

Decarbonising our industry is not something we can achieve overnight.

We believe that finding visionary partners with the most inspiring innovations is crucial in making it happen.

Decarbonising with sustainable fuels

Wärtsilä Next Business Lab for innovative partnerships

Lifecycle solutions cover

Want to work with pioneering sustainable technologies?

We are a global team of over 18,300 Wärtsilians in 77 countries across all seven continents.

We represent 128 different nationalities, and vary also in our fields of expertise; we have roles from underwater divers to cloud and machine learning developers and from assembly line workers to future fuel researchers, quality experts, and beyond.

While our skills and backgrounds are diverse, we are glued together by the impact we make and through our purpose: we enable sustainable societies through innovation in technology and services.

Become a Wärtsilian

Additional material

  • Wärtsilä Energy 2025

    Explore the company presentation.

    Download the presentation
  • Energy solutions catalogue

    Discover the outstanding capabilities of our future-proof engine power plant solutions.

    Get it now
  • Choosing the optimal path to a renewable energy future

    This report evaluates two commonly considered pathways to achieve net-zero emissions in the power sector at a global level.

    Read report

Latest press releases

Wärtsilä introduces next-generation engine to balance renewables and improve power plant performance

Feb 10, 2025, 09:00 by Wärtsilä Corporation

Wärtsilä 46TS engine provides improved output and efficiency to save fuel and costs, with future proof technology that can run on sustainable fuels

Technology group Wärtsilä launches today its next generation 46TS engine, which is designed to balance renewable energy, provide highly efficient baseload power, and can run on sustainable fuels in future.

The Wärtsilä 46TS large-bore engine has evolved from a long line of proven and reliable power plant engines, including the Wärtsilä 50 engine platform. The W50 engine is one of the world’s most successful power generating engines of all time, having delivered 55 million running hours around the world since 2008.

Using balancing engines to support intermittent renewables is a more viable path towards a net zero power system than a renewables-only pathway. Balancing power can reduce costs, emissions, and land use, as revealed in Wärtsilä’s recent global power system modelling report, Crossroads to Net Zero, which detailed the vital role of balancing power in delivering the energy transition.

Anders Lindberg, President of Wärtsilä Energy, says: “The energy transition cannot be achieved by renewable power alone – we need flexible, highly efficient engines to support wind and solar power during times of low generation. The flexible 46TS engine offers exactly that, expanding our existing technology offering to balance renewables and operate cost- effectively on baseload power.

“This engine is built on our 85 years of engine expertise, incorporating everything we have learned to develop our latest and greatest solution.”

The Wärtsilä 46TS is designed with sustainable fuels in mind, to ensure that when they become readily available, these engines can play an essential role in delivering 100% renewable power systems.

The engine provides a myriad of benefits for power producers, including:

  • Next level efficiency and performance: Significantly improved over 51% engine efficiency saves fuel and reduces emissions, with excellent performance in extreme ambient conditions and at high altitudes.
  • Improved output: The 46TS generates 23.4 MW/unit, meaning that fewer engines are needed to achieve large plant sizes.
  • Greater flexibility: Rapid response to fluctuations with even faster ramp-up time (2 minutes) and no minimum up- or down-time requirements.
  • Fast and cost-efficient installation: Fast and easy modular plant installation with high-quality, factory-tested modules bringing significant savings in total installed cost.

To support the W46TS, Wärtsilä provides tailored high-quality services to maximise reliability and profitability. Wärtsilä Lifecycle services, with optimised operations and guaranteed performance, ensure the power plant's performance and competitiveness. A technical service network provides expertise and support near customer and via remote monitoring.

The Wärtsilä 46TS engine will be available from 2025. Last month, Wärtsilä announced the first order for the 46TS engines placed by Kazakhstan Caspian Offshore Industries (KCOI). The engines will support KCOI's new 120 MW power plant and additionally, the first hybrid power project of its kind in Kazakhstan, which integrates the engine power plant with wind and solar power.

Learn more: Wärtsilä 46TS
Media kit

Media contact:

Katri Pehkonen
Communications Manager
Wärtsilä Energy
Mob: +358 50 591 6180
katri.pehkonen@wartsila.com

Image caption: Wärtsilä launches its next generation 46TS engine, which is designed to balance renewable energy, provide highly efficient baseload power, and can run on sustainable fuels in future. © Wärtsilä

All Wärtsilä releases are available at www.wartsila.com/media/news-releases and at news.cision.com/wartsila-corporation where also the images can be downloaded. Use of the image(s) is allowed only in connection with the contents of this press release. Wärtsilä images are available at www.wartsila.com/media/image-bank.

Wärtsilä Energy in brief
Wärtsilä Energy is at the forefront of the transition towards a 100% renewable energy future. We help our customers and the power sector to accelerate their decarbonisation journeys through our market-leading technologies and power system expertise. Our solutions include flexible engine power plants, energy storage and optimisation technology, and services for the whole lifecycle of our installations. Our engines are future-proof and can run on sustainable fuels. Our track record comprises of 79 GW delivered power plant capacity and over 130 energy storage systems in 180 countries around the world. Over 30% of our operating installed base is under service agreements.
www.wartsila.com/energy

Wärtsilä in brief
Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. We emphasise innovation in sustainable technology and services to help our customers continuously improve environmental and economic performance. Our dedicated and passionate team of 17,800 professionals in more than 280 locations in 79 countries is shaping the decarbonisation of our industries across the globe. In 2023, Wärtsilä’s net sales totalled EUR 6.0 billion. Wärtsilä is listed on Nasdaq Helsinki.
www.wartsila.com

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