Engine power plant products

Flexible power generation

Wärtsilä provides a wide variety of power generation products

Wärtsilä engine power plants deliver the best performance when needed the most, harnessing gaseous, liquid or sustainable fuels.

They offer flexible, efficient, and reliable power generation in a changing energy landscape.

Our power plants are optimal in balancing renewable energy production and ideal for providing firm and reliable baseload power generation.

Engine power plants are future-proof and can run on sustainable fuels, once they become available – enabling 100% renewable energy systems.

79 GW

of power plant capacity delivered to 180 countries around the world.

 

11 000

engine generating sets delivered.

Introducing Wärtsilä 46TS

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

Learn more about Wärtsilä 46TS here

Explore our power plant products

Wärtsilä offers a wide variety of power generation solutions. Find the best engine generating set for your need in the selector below.

Frequency
Power
Fuel type
Solutions catalogue cover 2025

Wärtsilä Energy solutions catalogue

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

Benefits

Your partner in power generation - why choose us?

Flexible operations

  • From start-up to full load in as little as two minutes without minimum uptime or downtime.
  • Unlimited starts and stops have no impact on maintenance.

High performance

  • The highest available simple cycle efficiency of current technologies, 50% or more.
  • High output and efficiency even in extreme conditions.

Future-proof solutions

  • Engine power plants will operate on sustainable fuels to enable 100% renewable energy future.
  • Our solutions offering includes upgrades, conversions and modernisation options.

Applications

The Wärtsilä Flexicycle™ power plant combines the flexibility of a simple cycle plant with the high efficiency of a combined cycle steam turbine. With the efficiency exceeding 54%, this unique combination is perfect for reliable baseload operation where high efficiency is needed.

Learn more about Wärtsilä Flexicycle.

Wärtsilä’s combined heat and power (CHP), district cooling and power (DCAP), and trigeneration plants use fuel in the most efficient way and help to reduce carbon emissions.

Learn more about Combined power generation and heat recovery power plant.

Build your own power plant

Design your own power plant

Curious to find out what kind of power plant is optimal for your needs? Our interactive Power plant designer is here to assist you. How it works:

  • Select your desired output range
  • Choose your fuel type
  • Define your running profile

With just a few clicks, you'll receive a personalised recommendation for the most suitable engine and power plant type to meet your needs. Ready to unlock the potential of your next power plant? Dive into the experience and get started now

Our success stories: How we have helped our clients

  • 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
  • Centrica, UK

    The rapid growth in renewable energy in the UK has increased the need for flexible power to balance the electricity grid. Wärtsilä has worked closely with energy and services company Centrica to provide the changing market with flexible energy, helping tackle the issues created by intermittent renewables and supporting the transition to a low-carbon energy system.

    Read more
    Centrica power plant aerial image.
  • PLTD Pesanggaran, Bali

    Grid stability in Indonesia – 200MW multi-fuel power plant generating reliable electricity in Bali with operational and fuel flexibility.

    Read more
    Pesanggaran - Bali
  • Malicounda, Senegal

    With 450 MW of installed capacity in Senegal, Wärtsilä is the country’s leading provider of power generation equipment. The Matelec company placed an order for the delivery of an energy efficient 130 MW Flexicycle™ power plant. This investment will enable Senegal to achieve its goal of reducing consumer electricity pricing.

    Read more
    Malicounda, Senegal
  • Parnaíba IV, Brazil

    Energy security has become a priority in Brazil as the electric power supply has not kept pace with robust demand growth. Hydropower is the dominant source for electricity production, accounting for approximately 70% of Brazil’s installed capacity.

    Read more
    Wartsila power plant - Parnaiba IV Brazil

Supporting your power plant operations with lifecycle services

34DF Genset with Wärtsilä employees

Maximise the benefits - minimise the risks

With Wärtsilä Lifecycle solutions, we maintain and optimise your power plant performance. This support encompasses our technology, software and service expertise as well as our holistic view and understanding of installations on a system level through service agreements.

Let us help you with Lifecycle solutions

Stay profitable, stay competitive

New regulatory requirements or changes in the grid may present obstacles to the smooth running of your operations. In these situations, upgrading is often the best means of managing obsolescence, future proofing your assets, and maximising the lifetime of your investment.

Stay ahead of the curve with Lifecycle upgrades

 

Sustainable fuels in engine power plants are the key to 100% renewable power generation

Our article series highlights how Wärtsilä is helping to create a renewable energy future for electricity generation.

Step into the future

Technology comparison: Engines vs. Aeros

Learn how reciprocating internal combustion engines balance renewables more optimally compared to aeroderivative gas turbines in our technology comparison.

Choose the best option for you

Technical comparison_engine vs aero Sitefinity banner

Making money with flexibility

Flexible power generation is no longer optional – it’s essential for balancing intermittent renewables and maintaining grid stability. But that’s not all. For asset owners such as utilities and independent power producers (IPPs), flexible power generation can also unlock new revenue streams and reduce financial risks – but only if you choose the right technology.

Learn more

Latest press releases

Learn more

3 Oct 2025 · Article
4 min read
Untangling Europe’s energy market through the lens of combined heat and power
Making sense of policies, markets, and the future of energy in Europe
2 Oct 2025 · Article
6 min read
Unlocking the potential of sustainable fuels and clean energy: Innovating through collaboration
What will it take to accelerate the shift to...
16 Sep 2025 · Article
5 min read
The power behind the transition: why balancing technology matters
The global energy sector is undergoing a remarkable transformation. Renewables are...
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