Patrick Phelps: Minerals West Coast manager explains why coal stockpiling deal is needed - Matt Heath & Tyler Adams Afternoons

New Zealand's biggest energy players - Genesis, Meridian, Mercury and Contact - have formed a deal to stockpile coal at Huntly Power Station, and questions have been raised.

The energy companies say the shared strategic energy reserve will secure supply for the next decade. 

Minerals West Coast manager Patrick Phelps explained the nuances of this deal to the Afternoons team.

LISTEN ABOVE

See omnystudio.com/listener for privacy information.