MCY Mercury NZ ( MRP Mighty River Power)

[Snoopy]

We can also subtract the $464m (AR2020 p10) required to complete the new Turitea wind farm to the full extent of the 60 consented turbines.

The new Turitea windfarm is scheduled to be built in two stages. There is the 33 turbine northern section timetables to be completed by the end of Q1 FY2021. The second 27 turbine southern section is set to be completed by the end of Q2 in FY2022. When finished this windfarm will consist of 60 turbines, and is budgeted to cost $465m including capitalised interest (AR2020 p40).

The Turitea wind farm will be New Zealand's wind farm with a total capacity of 222MW. Once operating the average projected energy to be produced each year is projected at 840GWh/year. If the wind farm were to operate 24/7 then the total energy generated would be:

222MW x 24 hr/day x 365 day/year = 1944720 MWh/year = 1945 GWh/year

This would suggest the windfarm will operate at: 840/1945 = 43.2%

It is interesting to compare this with Trustpower's Tararua wind farm.

http://www.windenergy.org.nz/tararua-wind-farm

This has a combined capacity of 161MW with average annual generation of 620GWh. The maximum energy that can be generated in any year is:

161MW x 24 hr/day x 365 day/year = 1410360 MWh/year = 1410 GWh/year

This would suggest the Trustpower Tararua windfarm will operate at: 620/1410 = 44.0%

Both of those operating yields seem high for a wind farm. Nevertheless they are in close agreement. That would suggest the wind farm Capacity Factors that I have calculated are correct.

SNOOPY