Case Studies

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Technology
  • Air Conditioning
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  • Lighting
  • Pump Upgrade
  • Refrigeration
  • Solar Photovoltaic
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  • Variable Speed Control
Aspley, Brisbane

Aspley Nursery

Aspley, Brisbane

Aspley Nursery

An energy audit for the on-site electricity usage recommended the installation of variable speed controls on pumps, replacement pumps with more energy efficient drive units, hot water system replacement, lighting replacement, air conditioning upgrade options & installation of solar photovoltaic system.

Implemented
28
Actual Energy Savings
Ingham

Ingham Cane Farm

Ingham

Ingham Cane Farm

The audit recommended replacing high pressure travelling guns with a low pressure boom irrigator and installing a variable speed drive to maintain 65psi at the booms. The project is expected to save 20% energy and has a payback period of 3 years.

Proposed
20
Proposed Energy Savings
Burdekin River

Burdekin Produce Crop and Cane Farm

Burdekin River

Burdekin Produce Crop and Cane Farm

The audit presented 2 options to improve the efficiency of an 18kW pump: upgrading to a high efficiency model, or adding an VSD, both of which would save nearly $4,000 per year and pay back within around 2 years.

Proposed
50
Proposed Energy Savings
Mareeba

Mareeba Nursery

Mareeba

Mareeba Nursery

The audit identified several energy efficiency opportunities including regular checks for leaks in the irrigation and compressed air systems and a lighting upgrade. The audit recommended a 10kW Solar PV system to complement energy efficiency practices already in place, to further cut power required from the grid by 35% to save over $4,000 per year with a payback of less than 5 years.

Proposed
34
Proposed Energy Savings
Morton Vale

Morton Vale Vegetable Farm

Morton Vale

Morton Vale Vegetable Farm

The audit recommended regular checking of cold room door seals to save up to 10% in refrigeration costs, along with incorporating 30kW Solar PV into a new shed being built at the site to offset pumping and refrigeration power consumption with a payback period of 4 years. Variable Speed Controls were recommended for 2 smaller pumps with a payback period of 7.7 years.

Proposed
58
Proposed Energy Savings
Mareeba

Mareeba Pawpaw Farm

Mareeba

Mareeba Pawpaw Farm

An audit recommended reducing the pump size from 45kW to 18kW to reduce water flow rate and friction head losses along with a variable speed drive due to the varying height of irrigation blocks. The farm will reduce pumping costs by nearly $3,200 per year with a payback of just over 4 years. A 15kW solar PV system will save an additional $6,000 per year with a payback of just over 3 years.

Proposed
100
Proposed Energy Savings
Mareeba

Mareeba Citrus and Avocado Farm

Mareeba

Mareeba Citrus and Avocado Farm

The case study provides an estimate of the costs and benefits of replacing a 36hp diesel irrigation pump two options: a mains connected 15kW pump or a 19kW pump powered by a 20kW solar array to get paybacks of 11 or 6 years respectively. The case study also compares the cost for a new pump of a 7.5kW mains connected pump and a 9.5kW pump powered by a 10kW solar array, to find a payback period of less than 1 year. The farmer would save over $77,000 on pumping costs over 10 years by installing solar pumping in both applications.

Proposed
62
Proposed Energy Savings
Mundubbera

Mundubbera Citrus Farm

Mundubbera

Mundubbera Citrus Farm

An audit of a Mundubbera Citrus farm recommended fitting variable speed drives to pumps, and a 30kW solar PV system. The farmer has implemented the findings, reducing the pump size as well, and adding over 80kW of Solar PV to save over $41,000 per year in electricity costs.

Implemented
54
Actual Energy Savings
Cairns

Cairns Cold Store

Cairns

Cairns Cold Store

A Cairns Cold Storage business cut their electricity usage by 30% by upgrading plant and equipment such as efficient chillers and pumps, variable speed drives and smart controls.

Implemented
30
Actual Energy Savings