Government looking into ‘pumped hydro’ systems
The government says its proposed “pumped storage battery” at Lake Onslow in Central Otago could mean New Zealand would be among the few countries in the world with a fully renewable electricity system.
So-called “pumped hydro” systems see water pumped back up to the top of a reservoir when energy demand is low, so that the water can be released when demand is high.
The government has set aside $30 million to develop a business case for the system, which it is touting as the “single biggest infrastructure project since the 1980s”.
Corin Dann speaks to Energy Minister Megan Woods.