1. IRRIGATION ENERGY EFFICIENCY EVALUATIONS Energy use - the unknown cost

2. The project – pilot study Funders EECA, Canterbury lines co, meridian, Environment Canterbury 15 on farm evaluations 1. Motor, pump, delivery system Efficiency & Performance 2. Scheduling/operation efficiency

3. The outputs Key Indicators o Energy consumed per volume of water used, kWh/m 3 o Power capacity per hectare kW/ha o Cost per m 3, $/ m 3 o Volume of water used per hectare/ irrigator o System capacity, mm/ha/day

4. Challenges Awareness of what water costs Data collection - is one flow meter enough? Bench marks Knowledge of what irrigators should be operating at flow and pressure Record keeping – as built plans, commissioning reports, performance testing reports Interpretation of data

5. What have we found Huge Range Issues Costs Savings Solutions Paybacks

6. Differences within a property AREA FLOW RATE AREA SERVED ha ELEC POWER DRAW kW kW/Ha Pivot 170110.5450.41 Pivot 260.899.5450.45 West Sprinklers 123618.50.51 Ocmis Gun1530602.00 East/Gallery Sprinklers N/A30220.73

7. Options for solutions Two pumps feeding two pivots using joined line PRV in network to reduce pressure. The pump curve indicates each putting out around 570kPa of pressure, actual measured pressure is 445kPa, restrictors using 125kPa of pressure.

8. Options for solutions OPPORTUNITYCAPEXSAVINGSPAYBACK Install a VSD on P1 and P2 $20,000$7,980*2.6 yrs Reduce the impeller size on P1 and P2 $4,000$5,980**0.7 yrs

10. Issues – scheduling

11. Photo of berry gallery

12. Issues - maintenance & compliance

13. Regular maintenance

14. Issue - system redesign

16. Acton water charge $38 500 25%=$9500 wasted because could not access Whole system revamp - $182,818.62 o $ 26,396 upgrading mainline o $ 156,422 new pivot. Access all of Acton water, more water, energy savings from mainline changes, better use of water

17. Issue – poor supply intake

18. BEP flow Selected to supply DeliveringCost p.a Pump 1757152$2136 Pump 2514133$3944 $6080

19. Options to fix

20. What do we need to do Smarter use of water, and electricity, use data Farmers can find it difficult to interpret data - wary of information overload Need to have a starting point – commissioning and understanding very important- baseline to compare from set point within season and between seasons O and M important - be able to ID quantifiable change

21. Information and tools Tool that combines all of the data streams - Water use, electricity use, climate data. That spits out an automated monthly report with the Key Indicators for them to compare this months data against last month and the month before that …. Regular checks audit? Performance assessment? Asset management