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1.1 Crystal Ice Industries
Installation by BAAC Australia for Powercor Australia
Industrial Coolroom – Freezer Storage Warehouse located in Central Victoria operating 24 hours 7 days.
This complex consists of 23 deep freezer rooms and 8 blast freezers.
The main refrigeration plant is a multi compressor ammonia plant with common condenser water cooling system.
Our initial investigations found that the complex had installed a demand management system using its own CT’s for power measurement. The freezer room each had their own controls which were not integrated into the power management
system.
We recommended the installation of a Powercom linked to the main electrical supply meter and Minicom controllers placed around the plant to control the freezer rooms.
The system was programmed to control within the existing electrical demand limits for load shedding and by installing the temperature controls into the system with time clocks we were able to reduce the overall consumption by 10% without any adverse effect on the freezer room conditions. |
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1.2 Laminex Industries
Installation by BAAC Australia for Powercor Australia
Laminex Industries is an industrial complex manufacturing building sheeting. The peak power maximum demand was approximately 8 MW and the source of the peak demand was unknown. The plant was controlled via an industrial PLC based SCADA system.
We installed a single Powercom on the incoming feeder meter and logged the power data for a month to determine usage patterns The plant electrical load was not subject to seasonal changes.
The recorded data indicated that the demand was being exceeded during the early morning while the main plant was idle but the re-cycling mill was operating.
We then programmed the Powercom to sent load-shedding signals to the existing SCADA system inputs so that the re-cycle plant machinery can be shed with no adverse effect on production.
This resulted in the maximum demand being reduced to 7 MW. |
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1.3 Bendigo Market Place
Installation by BAAC Australia for Powercor Australia
Bendigo Market Place is a large undercover shopping complex comprising of super markets, department stores, specialty shops and malls.
The complex is fully air-conditioned via 6 large air-conditioning units each with multiple zones. Cooling is via 2 DX compressors per unit and heating via 2 central gas fired boilers serving a re-heat coils on each zone. The complex was controlled by an existing DDC system with no demand management and access to view or control by the complex management.
We replaced the existing DDC system with our Powercom and Minicom controllers taking over the temperature control of the air-conditioning plant and boiler systems. Economy cycling was incorporated into the air-conditioning control and the Powercom monitored the maximum demand limits. Load shedding signals were networked to the air-conditioning controllers and compressors were cycled throughout the complex using the thermal inertia of the zones to allow compressors to be cycled off and reduce the over-all maximum demand during the summer season.
The results gave the complex managers a consistently reliable system allowing them to monitor power usage and zone temperature conditions. We were able to produce substantial energy savings for the complex.
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1.4 Goulburn Valley Base Hospital
Installation by Control Management Systems
Goulburn Valley Base Hospital is a large regional base Hospital located in Shepparton Central Victoria.
The Hospital has multiple buildings and is fully air-conditioned using a combination of systems.
Chilled water central plant.
Direct Expansion (DX) Reverse Cycle Package units.
DX cooling only with hot water or steam heated coils.
The Hospital has installed a Sphere DDC system which controls all major air conditioning plant throught the complex and is directly linked via TCP/IP to another Campus Hospital which is under their control.
A Powercom is installed on the main electrical feeder and this controller is used to monitor the electrical consumption and control the maximum demand. Load shedding is achieved by grouping load blocks and sending global messages to the remote Minicom air-conditioning controllers. These controllers in turn shed load if appropriate and the Powercom monitors the result and acts accordingly by instructing the controllers over the R485 network. |
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1.5 EuraPipe Industries
Installation by BAAC Australia for TXU Australia
Europipe are manufacturers of large industrial ABS pressure piping systems.
This client was moving from a kW tariff to a kVA tariff and was installing a power factor correction unit to maximise the tariff benefits.
A Powercom system was installed at the same time to monitor the results and identify the maximum demand profile.
Upon installation we immediately identified that the power factor correction unit was not functioning to specification and was actually undersized allowing the power factor to drop to 0.85 instead of the 0.97 expected during peak production times.
We also found that the maximum demand was being exceeded at a time when only one part of the plant was operational early in the morning.
We were able to monitor the offending machines and control the power load by installing a Minicom local to the machines and controlling the conveyor feed system. The Powercom load signals were also used to operate warning lights in the main extrusion plant area. These lights allowed plant operators to limit their machines when the complex was approaching maximum demand.
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1.6 Xavier College
Installation by BAAC Australia
The college had a problem with electrical demand over the winter period only. Most of the buildings were electrically heated and the main electrical supply was under sized to handle the total resistive load. An electronic control system was installed initially but turned out not to be satisfactory in controlling both the temperature and electrical load control. A Sphere DDC Energy Management system was installed to monitor and control the temperature of the class rooms together with power load distribution, so as not to overload the electrical sub-mains. This resulted in deferring capital expenditure in upgrading electrical mains.
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1.7 Creswick Woolen Mills
Installation by BAAC Australia for Powercor Australia
Creswick Woolen Mills is located near Ballarat Victoria and the main plant consists of air compressors and loom machinery, spinning plant and humidifiers.
The humidifiers, spinners and air-compressors were able to be load shed for maximum demand control.
A Powercom was installed and the power consumption monitored carefully. The factory manager had a full understanding of the plant and was able to fine tune the energy management settings so as gain maximum benefit from the electrical tariff without disrupting production.
The tuning was so fine that on one occasion were asked to investigate why the spinning machines were load-shedding more often that usual when nothing had changed in the plant.
We determined that the factory was suddenly drawing more current during specific times and the control system was attempting to compensate for the additional load. We requested that the machinery be examined in case of an electrical fault. The manager reported that a fault was developing in a large variable speed drive motor on one of the looms. The warning permitted them to schedule a repair without an outage in production.
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1.8 Montefiore Homes for the Aged
Installation by BAAC Australia
This is a major aged care facility with extensive air-conditioning for comfort control.
The Powercom system was installed to control a seasonal maximum demand problem by monitoring the incoming mains meter and load shedding the air-conditioning refrigeration chiller stages to keep the complex within the desired limits.
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1.9 Sydney Water Malabar
Installation by BAAC Australia for Powercor Australia
Sydney Water Malabar Complex is one of Sydney’s major sewage treatment plants.
This installation is a major High Voltage customer with 4 HV feeders and co-generation units.
Powercom32 is used to monitor both the import and export of electricity from all feeders.
Sydney Water Malabar has won an Energy Management Award for their initiatives amongst all of the Sydney Water Installations.
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Hospital Control AUD( 澳元 )
Austin Health Care Heidelberg ( Austin campus) |
$1,600,000.00 |
Royal Talbot Hospital ( Kew ) |
$ 400,000.00 |
The Bendigo Heath Care Group (3 Sites) |
$1,500,000.00 |
Anne Caudle Centre ( Bendigo ) |
$ 400,000.00 |
Wodonga Base Hospital |
$ 350,000.00 |
Goulburn Valley Health Care (2 Sites) |
$1,120,000.00 |
Allamanda Private Hospital Southport Qld |
$ 550,000.00 |
Wimmera Base Hospital (2 sites) |
$ 550,000.00 |
Cabrini Hospital (3 Sites) |
$ 380,000.00 |
Benchmark Health Care (3 Hospital sites) |
$ 650,000.00 |
Commercial Sites
Prison Complex, Perth |
$ 400,000.00 |
Qantas Airlines (9 sites) |
$ 900,000.00 |
Bendigo Market Place |
$ 240,000.00 |
Newcastle Megamart |
$ 320,000.00 |
Bendigo Art Gallery |
$ 400,000.00 |
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