Capital costs: The capital cost of pivot systems can vary considerably, depending upon the specification of the machine, the supply infrastructure, the cost of connecting electricity, and to a certain extent, the competitiveness of the supplier.
An example of the cost of a recently installed machine (2005) is given below. It is a 390 m (48 ha) 7-span pivot with a system capacity of 16 mm/d. It has no end gun, and is fitted with boombacks and wobbler sprinklers.
|Supply mainline (250 mm, 400 m), suction|
|Pump, motor and filter|
|Pump shed, concrete slab|
|Electricity supply extension|