The Labour Party is promising up to $4000 per household to encourage the use of solar energy. Half of that would be to help pay for solar panels on rooftops and half would be available to pay for battery storage. “We need to increase renewable electricity generation by 68% by 2050," says Labour leader Chris Hipkins. It says there are just over 53,000 homes in New Zealand with solar panels on their roofs and the number is growing. But SEANZ says people are gradually realising that the return on the upfront cost of installing solar panels is worth it in the long run.