Rolls-Royce Power Systems is to supply gas-fired gensets to add an extra 23 MW to an existing power plant in the Czech Republic.

The existing 60 MW plant run by C-Energy was converted from coal to gas in 2015 with four Rolls Royce B35:40V20 engines.

At the time it was the first natural gas plant operating on medium-speed gas engines in the South Bohemian region, where due to low coal prices, electricity and heat is still predominantly generated by coal.

The extension of the plant is seen as a step towards a more emissions-friendly future for the region and country.

Ivo Nejdl, director and co-owner of C-Energy, said the new engines “will enable the plant to increase its flexibility, to provide wider range of services and hence remain competitive on the pan European energy market”.

Once the extension is complete in a year’s time, the plant will deliver of 83 MW of electricity and heat for companies and homes in the nearby town of Tabor/Sezimovo Ústí, around 100 km southeast of Prague.

Nejdl added that the 2015 delivery of the original four Rolls-Royce engines “helped to transform the old coal-fired central heating plant into a modern power plant”.

“Now we not only supply power to the grid and heat to industrial customers and municipalities, but also provide auxiliary services to the high voltage grid.”

The two extra gas-fired gensets are based on the new 20 cylinder Rolls-Royce medium speed V-engine, B36:45, that was launched at POWERGEN Asia in September. Rolls-Royce will also supply long-term services for the engines.

Jeff Elliott, managing director of Bergen Engines, which is part of Rolls-Royce Power Systems, said: “Our new range of medium speed gas engines builds on the success of the B35:40-series and offers a variety of new benefits to our customers. With a completely new modular architecture, numerous configurations, fuel flexibility, and low life cycle costs, we believe it is truly engineered for the future.”

Both the B35:40 and the new B36:45 medium speed gas engines are flexibly designed for different operating modes. They can be used to generate baseload or peak power or can operate in combined cycle. The heat from the engines can be used to generate steam in the heat recovery steam generators, and the steam is supplied to industrial customers for their technological needs. The power plant can also be used for district heating by utilizing hot water from the engines.

The engines quick-start capability means the engines can ramp up to their rated load within five minutes, giving the plant access to the amount of power and heat needed within just a short space of time. In addition the new engines will be certified to provide primary and secondary grid regulation.