Wärtsilä Launches 46TS Engine for Efficient, Sustainable Power

February 10, 2025. By News Bureau

Technology group 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.

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 percent renewable power systems.

The 46TS engine offers power producers a range of advantages, including next-level efficiency and performance with over 51 percent engine efficiency, resulting in significant fuel savings and reduced emissions. It delivers excellent performance even in extreme conditions and at high altitudes. With an improved output of 23.4 MW per unit, fewer engines are needed for large plant sizes, offering greater flexibility with rapid response to fluctuations, a fast ramp-up time of just 2 minutes, and no minimum up- or down-time requirements. Additionally, its fast and cost-efficient installation is made possible through modular plant setups, featuring high-quality, factory-tested modules that deliver significant savings in total installed costs.

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.

Tags:

Hybrid power projects

Renewable power systems