Gold Coast hospital cuts costs with Siemens energy optimisation

by FM Media
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The first Australian installation of Siemens’ Demand Flow energy optimisation system at Robina Hospital in Queensland is exceeding expectations and on track to save enough electricity in its first 12 months to run the Melbourne Cricket Ground (MCG) light towers for a year.

Demand Flow is a variable pressure curve technology that optimises chiller plant control systems to reduce total plant energy consumption by between 20-50 percent.

A review of the first four months since the system was installed at the Gold Coast hospital saw an average 24 percent reduction in the chiller plant’s total consumption, according to Siemens.

This has resulted in the hospital reducing energy consumption by 367,154 kilowatt hours (kWh) in four months, more than 65 percent ahead of the set target for the period of 221,314 kWh.

Robina Hospital has verified the first month’s savings as a 7.04 percent reduction in total consumption for the hospital.

Siemens executive general manager building technologies, Stefan Schwab, said the outcome meant the Demand Flow technology was delivering ahead of its targeted savings.

“We are well on track to achieve the annual target of reducing energy usage by 792,091 kWh, and the resultant $95,051 cost saving,” Schwab said.

“Given that we have already achieved 367,154 (46.35 percent) of the annual guarantee figure of 792,091 kWh in just four months, we are confident of hitting the guaranteed payback period of 3.3 years in an even shorter period.”

Gold Coast Health senior director operational support service, Nigel Hoy, said the hospital was looking for ways to reduce its energy consumption and was impressed by the results achieved by Demand Flow.

“In addition to significant energy savings, the work Siemens carried out at Robina provided the opportunity for us to consolidate chilled water infrastructure from three separate chilled water plants into one,” Hoy said.

“This has resulted in a reduction to the ongoing maintenance requirements and costs for the facility.”

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