Wärtsilä Corporation was in June 2008 awarded a contract by ETA Star International LLC of Dubai, United Arab Emirates, to supply a 36MW power plant for a new cement works in Angola. This is Wärtsilä’s first power plant order from Angola. The plant is due to be handed over in June 2010.
For this power plant, Wärtsilä will deliver four Wärtsilä 20V32 diesel generating sets running on heavy fuel oil. Wärtsilä is providing all engineering of the plant and is delivering all the equipment for the power plant, including the building above ground level.
The cement works is being erected at Chindonga, near the town of Sumbe in Kwanza Sul province in Angola. Owned and operated by Fabrica de Cimento do Kwanza-Sul Ltda, the new cement works is being constructed and commissioned by ETA Star International. It will have a capacity to produce 4200 tonnes of cement a day.
The Kwanza Sul plant is an example of more than 1900 MWe of power generating capacity installed or under delivery by Wärtsilä for the cement industry world-wide.
The power demands of cement works can vary considerably depending upon production requirements. The shifts in energy demand require an effective load following power supply on an hourly basis. Wärtsilä power plants based on diesel or gas engines have outstanding flexible load-following capabilities. They can be started up in minutes and their output levels can be changed quickly according to the variable energy needs of the cement plant. They are also well suited to handling the sudden, rapid increases of electrical load when cement kiln motors are started.