Generator to support geothermal heating plant

Paul Boughton

Centrax Gas Turbines, the UK-based industrial power systems specialist, has won an order for a new CX501-KB7 generator set that will support the expansion of a major geothermal heating plant on the outskirts of Paris.
The order extends the partnership between Centrax and the plant’s owner, the Joint Geothermal Syndicate of Maisons-Alfort, established in 1999 when an earlier Centrax gas turbine package was installed.

The new 5.3MW indoor unit will supply electricity and heat to complement the output of a geothermal installation that powers a district heating system supplying more than 12,000 houses, apartments, schools, businesses and a university.
Centrax staff working to install the new gas turbine have removed the old package and modified the building and ductwork on schedule for the plant to be ready for the start of November, the next heating season in Maisons-Alfort.[Page Break]
The Joint Geothermal Syndicate chose DALKIA as site operator with the main contractor for the project, SERMET, acting as consultants for the Joint Syndicate
The new package is the tenth in France to be replaced by Centrax, with the UK company playing a leading role in meeting demand for plant upgrades resulting from the French government’s plan to reinvest in co-generation equipment that is more than 12 years old.
The proven efficiency of this Centrax gas turbine package enhances the effectiveness of the plant, which distributes the renewable, non-polluting and constantly-available geothermal energy available from rocks beneath the Paris basin that Maisons-Alfort has exploited effectively since 1985.
This system of district heating avoids the emissions of some 22,500 tonnes of carbon dioxide each year.
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