New Zealand's electricity system is primarily generated from renewable sources, with about 80% of its electricity coming from hydroelectric, wind, and geothermal power. The country has a diverse energy mix, which helps reduce greenhouse gas emissions and reliance on fossil fuels. The electricity market in New Zealand is competitive, allowing consumers to choose their electricity provider. The Electricity Authority oversees the market to ensure fair practices and efficient operation. Additionally, the Transpower company manages the national grid, ensuring reliable electricity transmission across the country.