The Green Party says it would set up a $120 million "Green Investment Bank" to fund green tech projects, with the money to come from hiking oil and gas royalties.
"The Green Investment Bank will be an enduring, government-owned, for-profit bank partnering with private sector to fund new projects ranging from renewable energy and biofuel production to new clean technologies", Greens Co-leader Russel Norman said.
"Considerable new investment opportunities lie in renewable energy plants, solar panel installations, energy efficient retrofits, the development and production of significant volumes of biofuels, and new clean technologies."
The party pointed to PricewaterhouseCoopers estimates that clean technology could be worth between $7.5 billion and $22 billion to the New Zealand economy by next year.
"We want to ensure it's on the higher end of those forecasts", said Dr Norman.