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Table 3: Net present value of irrigation with New Hydro not installed (7.5% discount rate, 30 year period of analysis) ($million)

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Irrigation Demand

(New Hydro not installed)

Irrigation Area (ha)

Water used (cumecs)

Net present value

Regional Primary Production

Regional Energy

Net Regional

All Irrigation Demands

124,250

24.1

$247.0m

-$135.4m

$111.5m

All Irrigation Demands >5% IRRa

76,250

16.7

$104.7m

-$11.2m

$93.5m

Takes above Tekapo

30,000

4.0

$105.8m

-$88.4m

$17.4m

Takes above Ohau

10,000

1.9

$26.2m

-$31.4m

-$5.2m

Takes above Benmore

2,000

0.4

$4.9m

-$3.5m

$1.5m

Takes Below Waitaki Dam

44,500

9.6

$67.2m

$0.0m

$67.2m

 

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