The NZ Battery Project was set up in 2020 to explore possible renewable energy storage solutions for when our hydro lakes run low for long periods. A pumped hydro scheme at Lake Onslow was one of the options being explored. The NZ Battery Project was set up in 2020 to explore possible renewable energy storage solutions for when our hydro lakes run low for long periods. A pumped hydro scheme at Lake Onslow was one of the options being explored. The Government stopped the Lake Onslow investigations in late 2023.
[pdf] In recent years, solar storage lithium battery, with its high energy density, long cycle life, and low self-discharge rates, has gradually emerged in solar energy storage systems, becoming the preferred storage module for more and more projects.
[pdf] On average, home batteries in New Zealand range from $800 to $1,200 per kilowatt-hour (kWh) of storage, depending on the brand and installation requirements. 💡 Pro tip: Some battery systems are now bundled with solar panel packages, which may reduce your overall cost per kWh.
[pdf] 
