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Energy Savers
Maranoa-Balonne

St George Cotton

Proposed
29
Energy Savings
37.9
Savings
6,024
Industry
Cotton
Irrigation
Flood
Pumps
Centrifugal
Technology
Irrigation, Variable Speed Control
Capital Cost
$8,000

Summary

The irrigation energy audit recommended change pump operations, add variable speed drives to a 75kW pump and replacing the pump impellor with a full-size version. These initiatives would result in energy savings of 29%, cost reductions over $6,000 per year and a payback period of around 1.3 years, with carbon reductions of 37.9 t CO2-e per annum.

Farm profile

The farm produces cotton and is located just outside St George, approximately 500km west of Brisbane. Two pumping stations, with two electric pumps each, transfer water around the farm for flood irrigation all year round. A dam is maintained on-site for water supply, and a series of reticulation channels transports water around the farm.

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Farmer feedback
The owner intends to implement a number of the audit recommendations and will review the timing for implementation following installation of a 60kW solar photovoltaic system on-site.