Energy Savers
Atherton Tablelands

Mareeba Citrus and Avocado Farm

Proposed
44
Proposed Energy Savings
Industry
Horticulture
Location
Atherton Tablelands
Irrigation
Drip, Micro irrigation
Pumps
Centrifugal
Technology
Pump upgrade, Variable Speed Control, Solar Photovoltaic

Summary

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.  Carbon savings have been estimated as 29.4 t CO2-e per annum.

Farm profile

The farm, near Mareeba, produces citrus and avocadoes, irrigated for approximately 10 months a year depending on rainfall. Water is supplied from an on-site irrigation dam and replenished from the Tinaroo scheme.

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