The Wärtsilä 46TS-SG is a four-stroke, spark-ignited, lean-burn gas engine generating set offering exceptional output, efficiency, and flexibility. Evolved from a long line of proven and reliable Wärtsilä engines with millions of running hours, this large-bore engine has a 2-stage turbocharging system that enables superior performance, even in challenging environmental conditions.
Wärtsilä 46TS is designed for balancing renewables and to operate cost-efficiently on baseload. The engine’s improved output and efficiency save fuel and costs while keeping emissions to a minimum. Its flexibility features, such as fast starting capability with unlimited starts and shut-downs maximise your revenue streams. Wärtsilä 46TS is based on future-proof technology that can run on sustainable fuels in the future.
from start to full load
Electrical efficiency
mechanical output
| Wärtsilä 46TS-SG gas engine generating set | ||
| Cylinder configurations | 20 V | 18 V |
| Cylinder bore | 460 mm | |
| Piston stroke | 580 mm | |
| Engine speed | 600 rpm | |
| Performance * | ||
| Rated electrical power | 20.38 MW (50/60 Hz) | 22.93 MW (50/60 Hz) |
| Electrical efficiency (%) | 51.3% | |
| Heat rate kJ/kWh | 7 020 (50/60 Hz) | 7 060 (50/60 Hz) |
| Loading and unloading | ||
| Fast connection to grid and full load | 120 seconds | |
| Normal connection to grid and full load | 5 minutes | |
| Regular start time | 30 seconds | |
| Shut-down time | 120 seconds | |
| Ramp rate (hot, load/sec) | 1% / second | |
| Minimum Load | ||
| Unit level | 10% | |
| Plant level | Equal to minimum load of one unit | |
| Minimum up- & down times | ||
| Minimum up-time | No limitation | |
| Minimum down-time | No limitation | |
| * Rated electrical power and electrical efficiencies are given at generator terminals at 100kPa ambient pressure, 25°C suction air temperature and 30% relative humidity, and without engine driven pumps. Power factor 1.0 (site). Electrical efficiency and heat rate with 5% tolerance. Site conditions, fuel and applicable emission limits may have an impact on performance figures. Please contact Wärtsilä for project-specific performance data. Emission figures for LBF must be evaluated case by case. Catalyst systems are designed based on project specific requirements. Certain fuel components are poisonous for catalyst elements. Maximum amount of these components to be limited in the fuel in applications where catalyst system is installed |
| Disclaimer: The information contained herein is provided for informational purposes only and may not be incorporated, in whole or in part, into any agreement or proposal. No representation of any kind is made in respect of any information contained herein and Wärtsilä expressly disclaims any responsibility for, and does not guarantee, the correctness or the completeness of the information. The calculations and assumptions included in the information do not necessarily take into account all the factors that could be relevant in a particular case. Information herein shall not be construed as a guarantee or warranty of the performance of any Wärtsilä technology, equipment or installation. |
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Liquid fuels
Natural gas
Liquid fuels and gas
Flexible baseload (>6000 running hours annually)
Intermediate load (2000 - 6000 running hours annually)
Peaking and grid stability (<2000 running hours annually)
Emergency
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