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Case Studies

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Karalee

Karalee Nursery

Karalee

Karalee Nursery

The farm has implemented a lighting upgrade, Power Factor Correction (PFC) and a 30.4kW Solar PV system to achieve annual energy savings over $14,700. The lights and PFC offer a payback period of under 3 years, with the PV payback around 5½ years. The Pump VSD and pressure transducer once implemented will allow the pump to operate at its Best Efficiency Point.

Implemented
20%
Actual Energy Savings
Mareeba

Mareeba Cane Farm

Mareeba

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 nearly $20,000 per annum with a reduction of 19% energy consumption.

Implemented
19%
Actual Energy Savings
Rollingstone

Rollingstone Horticulture Farm

Rollingstone

Rollingstone Horticulture Farm

This detailed case study shows how a comprehensive audit and collaboration between the auditor and local refrigeration specialist have significantly reduced cold room operating costs with annual savings of almost $20,000 and a payback period of a year and a quarter. Refrigeration energy consumption and demand have been almost halved.

Implemented
49%
Actual Energy Savings
Brookstead

Brookstead Cotton Farm

Brookstead

Brookstead Cotton Farm

Two stages were removed from a seven-stage pump which reduced the flow rate but improved the combined efficiency by 25%. The pump demand has been reduced by 12kW and even with increased running time, running costs have reduced by $1,200 per year with a payback period under two years.

Implemented
15%
Actual Energy Savings
Cecil Plains

Cecil Plains Cotton Farm

Cecil Plains

Cecil Plains Cotton Farm

The Audit recommended a new, smaller pump which increased water flow by 1.1ML/day and improved combined efficiency by nearly 30%. The pump upgrade has been completed by the farmer even though the payback period on energy cost savings alone was estimated at over 9 years.

Implemented
15%
Actual Energy Savings
Stanthorpe

Stanthorpe Horticulture Farm

Stanthorpe

Stanthorpe Horticulture Farm

The farmer installed variable speed drives on two 37kW pumps providing an annual cost saving of over $14,500 with a payback period of around 18 months. Other efficiencies were identified including some refrigeration improvements and a small Solar PV system which the farmer is yet to implement.

Implemented
25-30%
Actual Energy Savings
Southern Queensland

Condamine Feedlot

Southern Queensland

Condamine Feedlot

The audit made many recommendations such as a boiler economiser and boiler combustion oxygen levels, voltage optimisation and adjusting feed processing to avoid some heating elements. A number of recommendations had a total annual energy cost saving of over $77,000 with a payback period under the companies’ 3 year payback target. Around $72,000 of extra annual savings may be available through a tariff change.

Proposed
13%
Proposed Energy Savings
Central Queensalnd

Central Queensland Prawn Farm

Central Queensalnd

Central Queensland Prawn Farm

This audit considered a number of opportunities to reduce heating energy consumption. The case study highlights energy savings of 12% in covering heated hatchery tanks and heat recovery systems with an average payback or around 3.5 years and an annual saving of almost $9,500.

Proposed
12
Proposed Energy Savings
Southern Queensland

Southern Queensland piggeries

Southern Queensland

Southern Queensland piggeries

This case studies highlights the energy savings opportunities from audits at a number of pork farms. It highlights potential to reduce lighting energy by 66%, and reducing overall energy by up to 27% with the addition of Solar PV.

Proposed
27-66
Proposed Energy Savings