Auckland awards P2P electrification contract
https://www.railwaygazette.com/infrastructure/auckland-awards-p2p-electrification-contract/57529.article
I think that EMUs with onboard battery storage are currently enough to transport passengers between Pukekohe and Papakura. But, when we consider increasing population in New Zealand and Auckland, it's understandable to replace them with EMUs getting electricity from catenary to increase train freguency.