Dear Sir or Madam,
I am wondering whether it's possbile to get historical and up-to-date Hydro storage data to download.
As I went through this forum and other websites, i got a feeling that it's impossbile to get it for free. Therefore, i am willing to pay to subscribe a good data source, but still unable to find one. Asking for your help here, thx in advance.
Actually the data i am looking for as below, every week Transpower announces this kind of data: