Under the contract, the company will upgrade two existing generators and provide one new generator. The company will also supply new complete stator, excitation system and cooling system plus refurbishment of the existing rotor, generator shaft and new or refurbishment of bearings.
The works at the project will be executed between 2016 and 2017 and are part of a bigger modernisation project which aims to increase output to 110MW.
After the refurbishment the generators will be upgraded to a modern design with increased output of the generators from 2×46 MVA to 2×53 MVA.
The company will also supply a 25 MVA generator and will be manufactured at its site in Bilbao, Spain.
Alstom president in Finland Markus Alholm said, "With this project we will significally increase the output of Harjavalta power plant thus allowing Länsi-Suomen Voima Oy to provide a reliable and renewable power to Southern Finland. This order endorses our strategy to support customers with a full services and retrofit offering to secure operational reliability and to optimize their asset management throughout the plant’s lifespan."
Länsi-Suomen Voima managing director Olli Nummelin said, "The refurbishment and new machine will allow us to increase the production capacity of the plant and improve the efficiency and environmental safety of the plant. We chose Alstom to execute the generator modernisation because of their know-how and long experience".
The Harjavalta hydro power plant is located in Western Finland in the river of Kokemäenjoki and was built in 1939.
The power plant is claimed to be one of the most efficient power plant in Southern Finland. The drop height of the power plant is 26.4m.
Image: Harjavalta hydro power plant_aerial view_Finland. Photo: Courtesy of ALSTOM 2014.
