2 November 2009 – Alstom has signed two contracts, worth a total value of EUR450m ($664m) known as the Mannheim 9 project, to supply Grosskraftwerk Mannheim AG with boiler and turbine units at its Mannheim power plant in the German state of Baden-Wuerttemberg.
Grosskraftwerk Mannheim is a coal fired cogeneration plant with an installed base of 1675 MW which produces up to 1000 MW of heat as well as electricity, and has been supplying both heat and power to the region for over 85 years.
The new unit will have an electrical output of over 900 MW and will supply 25 per cent of the Rhein-Neckar region’s electricity, the equivalent of approximately 600 000 households.
It will replace the existing 3 and 4 units of 220 MW each output, which will be taken out of service after the commissioning of the new unit in 2013.
The scope of the Mannheim 9 project includes a STF 100 5 casing steam turbine, a Gigatop 2-pole turbogenerator and a condenser, and has been completed by a Tower Type Boiler island with SCR and preheater, including coal bunkers, mills, and auxiliary systems.
Alstom will also carry out transportation to the site, full erection, commissioning, trial -run and performance tests both for the steam turbine generator set and the boiler island.
District heating applications such as these help save 200 000 TCE (ton of coal equivalent) primary energy and 300 000 tonnes of CO2 per year. The new unit will help increase this figure.
The combined heat and power production significantly contributes to reduce emissions. The new unit will use less coal, reducing the power plant’s overall CO2 emissions by about 1m tonnes per year and conforming to the objectives of the German government, with a strong focus on reducing the country’s greenhouse gas emissions.