That is right considering the wind power especially at Loiyangalani generates most when the winds are strongest between 9pm and 6am.Coincidentally that is when we have the lowest demand(10pm to 7am).
Considering the PPA's "take or pay" model, we end up paying for excess generation.
The upside is that the Nation Control prioritised the uptake of the cheaper wind energy while reducing the hydros respectively. This in essence saved the dam waters for later generation. Indeed KPLC admit that were it not for the LTWP power, water levels would have gone very low during this past dry season.
PS:Remember the years of water rationing(2000-2002) due to low water levels in the dams?That is now forgotten....