An interesting article from last week announced that US network Verizon is adopting Z-Wave into its new home energy management offering.
Whilst utilities are adopting ZigBee Smart Energy, Z-Wave has certainly become the main wireless technology for general home automation including security and (very soon) remote controls replacing IR & 3D glasses.
Its likely that the inclusion of ZigBee in the upcoming smart meter roll-out will act as a tojan horse, paving the way for a whole raft of ZigBee compatible devices.
These may supersede Z-Wave in many years from now, or each technology may co-exist the same as Bluetooth & Wi-Fi do today.
But for now at least, Z-Wave has had a huge boost. Also expect similar announcements for Europe soon.
Full Verizon article Here.