The installations are distributed throughout New Zealand, with about 20% in regions where NGC already has a significant metering presence.
NGC chief executive, Phil James, said the purchase would further diversify NGC's metering customer base.
The agreement follows recent growth initiatives in which NGC acquired around 6,740 mass market and interval meters from TrustPower and, through agreements with Wellington-based technology company, Energy Intellect Limited, expanded its data management capabilities and extended its services into Australia.