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Improve the efficiency of car park exhaust fans


Save around 50 per cent of the energy used by exhaust fans in underground car parks by installing variable-speed drives.

Significant energy savings can be made by upgrading the exhaust fans in your underground car park to high efficiency or variable-speed drives.

High efficiency motors use less energy to run than a standard motor and if they run for long hours can deliver substantial savings. They cost 10-15 per cent more, but can deliver paybacks within a year.

Variable speed drives on fans allow air flow to be controlled by carbon monoxide sensors. This allows fans to run at a lower rate when not required, rather than a fixed rate at all times.

Ensure the variable-speed drive fans are controlled by carbon monoxide (CO) sensors in accordance with Australian Standards AS1668.2

The payback period is between 3 and 4 years.