Energy Savers
Queensland

Queensland Cotton Farms

Proposed
40
Energy Savings
324
Savings
106,589
Industry
Cotton
Technology
Solar Photovoltaic, Irrigation, Pump upgrade, Variable Speed Control, Lighting
Capital Cost
$488,240

Summary

This case study summarises the outcomes from audits conducted on 8 Queensland Cotton farms taking part of the Energy Savers Program. Additional benefits of increase in water delivery can improve the profitability of the industry.

Collectively the total energy consumption consumed from the measured areas on the eight cotton farms was 886,171kWh at an annual cost of $239,405, resulting in emissions of 815 tonnes of CO2-e. Energy and emission savings have been estimated around 40%.

Opportunities:  the main opportunities identified on Cotton farms include 

  • Pumping and Irrigation- Savings from Variable Speed Drive installation, pump replacements and maintenance. Changes to irrigation design and automation. 
  • Lighting and General- Replacement and retrofitting of lights with LEDs, infrastructure upgrades to facilitate efficiency gains and general management changes. 
  • Solar Systems- Ranging in size from 5-100kW systems 

Table 1. Technology Recommendations and Savings in the Cotton Industry. 

Recommendation  Total  Energy Savings (kWh)  Cost Savings ($)  Capital Cost ($)  Average Payback (Years) 

Emission Reductions (tCO2-e) 

Pumping and Irrigation Upgrades 

11  154,415  32,282  177,610  6.6 

142 

Lighting and General 

1  N/A  1,000  1,000  0.4 

N/A 

Solar Systems 

13  198,325  71,707  309,630  3.9 

182 

Total 

25 

352,740  106,589  488,240  3.6 

324 

Total Recommendations 

(All sectors) 

665  7,459,015  2,817,342     12,784,670  6.85 

6,862 

 

Table 1 highlights that potential energy savings of 352,740kWh were discovered from the audit process.  

Cotton

Cost savings of $106,589 and an estimated 324 tonnes of CO2-e could be avoided per annum. At a capital cost of $488,240 the average payback was 3.6 years. 

Additional value adding from the energy audits showed how an increase in water delivery, could increase production and profit with a reduction in energy consumed per unit of output 

Table 2. Pre and Post Audit Metrics.  

Metric  Pre-Audits  Post- Audits 

Reduction (%) 

Energy Consumption (kWh) 

886,171  533,431 

40 

Energy Costs ($) 

239,405  132,816 

45 

Emissions (tCO2-e) 

815  491 

40 

 

As installation of the recommendations is made within the industry, measurement and verification will be undertaken, and case studies will be updated to include the actual energy savings.  

Cotton 2

Energy Efficiency for your Industry and Business 

An energy audit is a great way for a business to identify the most effective way to cut costs, reduce emissions and boost productivity.  

The audits show that there are significant opportunities in the cotton industry to improve energy efficiency by investigating the pumping and irrigation systems as well as by implementing solar systems. A cotton farm in Brookstead has saved $1,200 per year by upgrading a pump system at a capital cost of $3,000, to see more details click HERE 

To keep up to date with the changes taking place in the energy space sign up to the e-news HERE 

 

The Energy Savers Plus Extension Program is delivered in by the Queensland Farmers Federation with support and funding from the Queensland Department of Energy and Public Works.  

Capture

Download The Full Case Study
Want to keep a copy or print the case study?
Download Now