Siemens installed 26 Airius model 45 fan units into their Acton rail maintenance shed facility to improve comfort and save on energy costs resulting in an ROI of less than 18 months.

Key Points:

• ROI = Under 18 months
• £12,106 - First year saving
• £19,799 - Full system & installation cost
• 1,141,113.06 - KwH 08/09
• 709,956.00 - KwH 09/10
• Installed into Acton rail maintenance shed
• System - 26 Airius Model 45 units
• 75 tonnes - Approx. annual CO2 reduction

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