Gas conversion power plants
Gas conversions
for power plants

Wärtsilä Power plant gas conversion

As gas grids expand and emission levels continue to tighten, conversion to natural gas is an increasingly viable alternative for power plants. Wärtsilä engines are flexible and easily adapted to using gas as a primary fuel, helping to cut operational costs and exhaust gas emissions while increasing fuel flexibility. Gas conversion is one key feature in future-proofing power plants, as it enables transition to synthetic fuels in the future.

    • Optimise OPEX by reducing fuel and lube oil use and cutting maintenance costs
    • Reduce exhaust gas emissions
    • Increase operational flexibility
    • Extend lifetime of the installation
    Technical info
    Wärtsilä offers the following conversion options: 

      Spark-ignited (SG)
    • Mono fuel: natural gas, LNG, LPG
    • For targeting the highest efficiency and asset output with the lowest emissions 
      Dual-fuel (DF)
    • Multiple fuels: HFO, LFO and natural gas, LNG
    • For meeting the need to switch between natural gas and liquid fuels
    Convertible engine types are Wärtsilä Vasa32, W32, W34, W46 and W50.
    Wärtsilä Gas Conversion NOx

    A sustainable business move

    Gas conversions can unlock to possibility to add renewables to the energy mix, while cutting down
    NOx, SOx and Greenhouse gas emissions drastically.


    Why consider a gas conversion?

    As natural gas is both attractively priced and efficient, converting an existing engine to operate on gas offers significant economic and environmental benefits. Gas also offers you increased operational flexibility as other fuels can still be used if needed. A gas conversion helps to future-proof your plant by allowing you to transition to synthetic fuels at a later date and enables integration of renewable energy sources by providing reliable balancing.


    Wärtsilä power plant gas conversion

    Case example: the impact of fuel type and technology on levelised cost of energy

    The example demonstrates the impact of technology and fuel type on levelised cost of energy. The example is based on a 100 MW power plant, with six W18V46 engines. The actual values are not directly applicable for any power plant, but will depend on several variables and factors.
    Levelised cost of energy
    Levelised cost of energy

    Case: Delimara gas conversion

    Gas conversion reduces power plant emission levels

    Shanghai Electric Power reduced both electricity production costs and emission levels at their Delimara 3 Power Plant in Malta as eight Wärtsilä HFO-fuelled engines were converted to run on natural gas including installation of the new UNIC C3 engine control system. This means a lower heat rate for the engines, increased efficiency, higher power output capacity, and lower emissions, in other words, reduced operational costs.

    Other references

    Extensive experience with gas engines and conversion projects


    Press releases & News

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