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Combined power and cooling system to cut Citi's data centre energy use by 10 per cent

Banking group Citi has announced it is building a trigeneration system at its Lewisham data centre next winter which will cut the facility’s energy use by 10 per cent while generating almost three quarters of its own power

Global bank Citi has announced it is building a trigeneration system at its Lewisham data centre next winter which will cut the facility’s energy use by 10 per cent while generating almost three quarters of its own power.

The £5.2 million project is backed by £2.6 million from the UK Green Investment Bank. The 2.8 MW trigeneration or CCP (Combined Cooling and Power) system will be installed together with energy efficient cooling units and efficiency improvements to the building’s air conditioning system.

Citi has engaged Clarke Energy to install the GE Jenbacher CCP system, which will generate 71% of the electricity needed to power the data centre (23,680 MWh) while also providing cooling for the servers. Citi currently uses mains electricity from the national grid and relies on back-up diesel generators.

Clarke Energy says that use of absorption chillers will provide low noise, low maintenance cooling for the facility.

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