July 29 (Reuters) - TrustPower Ltd TPW.NZ :
* Qtrly total New Zealand generation production 609 gwh versus 599 gwh
* Qtrly total customer sales 1,014 gwh versus 1,029 gwh
* Qtrly total Australian generation production 371 gwh versus 295 gwh
* Source text for Eikon ID:nNZW39fNZM