As per the conventional model, electricity in New Zealand is generated by using traditional energy sources - by harnessing water, wind, sun, geothermal energy, coal and gas, which flows into transmission and to electricity distribution networks. Electricity is then sold to customers by power companies in New Zealand, who are the retailers. 

Press Release - New Zealand Government

Over a thousand insulation and heating installers are back to work this week to make New Zealand homes warmer and drier, says Energy and Resources Minister Dr Megan Woods.

“Alert Level 3 means 1,300 contractors will be back installing insulation and heaters under the Government’s Warmer Kiwi Homes programme, before cooler winter weather arrives.”