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Case Studies

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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
St George

St George Cotton

St George

St George Cotton

The irrigation audit identified energy savings of 29% and a payback period of 1.3 years with a change to pump operations, installation of a variable speed drive to a 75kW pump and replacing the pump impellor with a full-size version. The audit also found up to $3,500 in savings available with a change in tariff.

Proposed
29
Proposed Energy Savings
Cecil Plains

Cecil Plains Cotton

Cecil Plains

Cecil Plains Cotton

The irrigation energy audit recommended replacing a 45kW line-shaft pump with a 37kW submersible pump to achieve an 8% energy saving.

Proposed
8
Proposed Energy Savings
Emerald

Emerald Cotton

Emerald

Emerald Cotton

An energy audit of the pumping systems recomended replacement with more energy-efficient drive units, upgrading the distribution pipework & replacing pumps

Proposed
37
Proposed Energy Savings