Case Studies

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Year
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CO2 Savings
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  • Highest
Energy Savings
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  • Highest
Wide Bay Burnett

Bundaberg Cane Farm

Wide Bay Burnett

Bundaberg Cane Farm

The audit of this 46Ha Bundaberg sugar cane farm considered energy consumption, hydraulic losses, and crop management. The audit recommended upgrading the pumps and changing the irrigation design. The site consists of a river pump and booster pump on separate NIMIs and irrigated using high pressure Gun, medium pressure boom and low-pressure furrow.

Proposed
86
Energy Savings
39.3
Savings
Dry Tropics

Ayr Cane Farm

Dry Tropics

Ayr Cane Farm

An 120ha cane farm in the Ayr region is taking a holistic approach taking part in both the Queensland Farmers Federation Reef, and Energy Savers programs. The site aims to reduce fertiliser use, energy consumption and costs while increasing production and minimising its impact on the surrounding Great Barrier Reef.

Proposed
44
Energy Savings
24.4
Savings
Mackay, Isaac and Whitsunday

Mackay Cane Farm

Mackay, Isaac and Whitsunday

Mackay Cane Farm

A cane farm in the Mackay region could increase production, net profit and reduce energy consumption from adoption of solar, and pump and irrigation changes.

Proposed
21
Energy Savings
59.3
Savings
Atherton Tablelands

Mareeba Cane Farm

Atherton Tablelands

Mareeba Cane Farm

The audit recommended optomising the VSD speed to reduce friction losses, balancing efficiency with crop requirements. This no-cost project is saving the farmer $9,532 per annum with a reduction of 19% energy consumption.

Implemented
19
Energy Savings
48.4
Savings
Dry Tropics

Clare Horticulture and Cane

Dry Tropics

Clare Horticulture and Cane

This case study shows how a Clare melon farm can reduce energy consumption and costs implementing the recommendations of an Energy Savings Program. The farm has already implemented VSD on 8 pumps, reducing the energy consumption for irrigation by 49%. Further savings can be achieved by upgrading irrigation, refrigeration and hot water systems, with energy savings estimated as 12% of total farm energy consumption.

Proposed
12
Energy Savings
75.3
Savings
Dry Tropics

Burdekin Sugar Cane

Dry Tropics

Burdekin Sugar Cane

A range of initiatives were identified including replacing some pumps and motors with new pumps and variable speed drives, with an average payback period of 2.8 years and annual cost savings of around $16,500. An extra $10,000 annual saving is potentially available at the site by reviewing the tariffs of the pump stations. Energy savings have been calculated as 4% for the flood system and 16% for the drip & micro irrigation system. Emission savings have been estimated at an average of 18.4 t CO2-e per year.

Proposed
4-16
Energy Savings
18.4
Savings
Dry Tropics

Lower Burdekin Water

Dry Tropics

Lower Burdekin Water

Lower Burdekin Water Board cut their power consumption by 58,000kWh and demand by 105kVA resulting in annual cost savings of $20,000 or 25%, with carbon reductions of 53.4 t CO2-e per annum, at the Kilrie Gully pump station.

Implemented
40
Energy Savings
53.4
Savings
Wet Tropics

Ingham Cane Farm

Wet Tropics

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 with carbon reductions of 11 t CO2-e per annum.

Proposed
20
Energy Savings
11
Savings
Dry Tropics

Burdekin Produce Crop and Cane Farm

Dry Tropics

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, with carbon emission reductions of 15 t CO2-e per annum.

Proposed
50
Energy Savings
15
Savings
Mackay, Isaac and Whitsunday

Mackay Sugar Cane

Mackay, Isaac and Whitsunday

Mackay Sugar Cane

The irrigation audit identified energy savings of 10% with a payback of 3.4 years by modifying the discharge piping on the 45kW pump to reduce pressure losses. Additional savings were identified by replacing pumps and adding a variable speed controlled, but with longer payback periods. Emission savings have been estimated to be 3.1 t CO2-e.

Proposed
10
Energy Savings
3.1
Savings
Wide Bay Burnett

Childers Sugar Cane

Wide Bay Burnett

Childers Sugar Cane

The irrigation energy audit identified a number of initiative that would save about $110,000 over 10 years. These included replacing oversized pumps, and adding Variable Speed Drives where the changing elevation of the Centre Pivots caused variable head pressure. The audit also identified $600 in annual savings through tariff review. Emission savings have been estimated to be 47 t CO2-e.

Proposed
19
Energy Savings
47
Savings
Wide Bay Burnett

Bundaberg Sugar Cane & Macadamias

Wide Bay Burnett

Bundaberg Sugar Cane & Macadamias

The irrigation audit identified a number of opportunities on site including modifying pipe systems to reduce pressure loss, impellor modifications and installation of variable speed drives. Energy savings of 16% with a payback of 1.3 years were identified. The audit also identified up to $11,000 available by reviewing the tariff pricing structure for the pumps. Emission savings have been estimated to be 52 t CO2-e.

Proposed
16
Energy Savings
52
Savings
Mackay, Isaac and Whitsunday

Mackay Sugar Cane

Mackay, Isaac and Whitsunday

Mackay Sugar Cane

The irrigation energy audit assessed the site pumping systems including creek pumping and transfer pumping, recommended adding variable speed drives to the 55kW pumps driving the Centre Pivots, and reducing head pressure. Energy Savings of 19 – 30% were identified with payback periods between 8.4 – 23.9 years and average carbon emission reductions of 7.5 t CO2-e per annum.

Proposed
19-30
Energy Savings
7.5
Savings
Wide Bay Burnett

Childers Sugar Cane

Wide Bay Burnett

Childers Sugar Cane

The irrigation energy audit recommended replacing three old pump motors and adding Variable Speed Drives to two pumps, with an annual energy saving of 15% and payback of 3.2 years, as well as carbon emission reductions of 32.8 t CO2-e per annum.

Proposed
15
Energy Savings
32.8
Savings
Dry Tropics

Giru Sugar Cane

Dry Tropics

Giru Sugar Cane

The audit recommended two options, including replacing a 15 year-old 33kW pump with a smaller 22kW pump, or replace the pump and add a variable speed drive. Energy savings of 4-11% and average emission savings of 3.9 t CO2-e per annum have been estimated.

Proposed
4-11
Energy Savings
3.9
Savings
Wet Tropics

Ingham Sugar Cane

Wet Tropics

Ingham Sugar Cane

The audit recommended a number of measures, including a variable speed drive to regulate pressure rather than the current throttling arrangement. The measure will save around 45% energy at the pump, with an annual cost saving of over $10,500 and a payback period of around 9 months, as well as emission savings of 44 t CO2-e per annum.

Proposed
45
Energy Savings
44
Savings
Wide Bay Burnett

Bundaberg Sugar Cane

Wide Bay Burnett

Bundaberg Sugar Cane

The audit assessed 10 initiatives to upgrade pumps and add variable speed drives, and recommended that two be implemented with payback periods of 3.5 years and savings of $6,000 per year. The audit also recommended tariff checks to achieve further savings. Emission savings have been estimated to be 20.6 t CO2-e in average per year.

Proposed
10-33
Energy Savings
20.6
Savings
Wide Bay Burnett

Bundaberg Sugar Cane & Pineapples

Wide Bay Burnett

Bundaberg Sugar Cane & Pineapples

A range of initiatives were identified including replacing some pumps and motors with new pumps and variable speed drives, with a payback period of 2.8 years and annual cost savings of around $16,500. An extra $10,000 annual saving is potentially available at the site by reviewing the tariffs of the pump stations. Emission savings have been estimated to be 27.1 t CO2-e per year.

Proposed
12
Energy Savings
27.1
Savings
Wide Bay Burnett

Bundaberg Sugar Cane & Aquaculture

Wide Bay Burnett

Bundaberg Sugar Cane & Aquaculture

The audit made many recommendations for pipe upgrades, pump replacement and the addition of variable speed drives. Six recommendations had a total annual energy saving of nearly $20,000 with a payback period under a year. Nearly $6,000 of extra annual savings may be available through tariff reviews. Emission savings have been estimated to be 114 t CO2-e per year.

Proposed
14
Energy Savings
114
Savings
Mackay, Isaac and Whitsunday

Proserpine Sugar Cane & Rice

Mackay, Isaac and Whitsunday

Proserpine Sugar Cane & Rice

The farmer implemented the recommendations including 2 variable speed drives and is likely to save over $7,000 per year with a payback of around 2 years and emission savings of 31.5 t CO2-e per year. There are more potential savings available by replacing other pumps with high efficiency models at the end of their life.

Implemented
25
Energy Savings
31.5
Savings