Approximately 40% of primary energy is from renewable energy sources in New Zealand. Approximately 80% of electricity comes from renewable energy, primarily hydropower and geothermal power.
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Renewable electricity
Renewable electricity in New Zealand is primarily from hydropower. In 2015, 81% of the electricity generated in New Zealand came from renewable sources. In September 2007, former Prime Minister Helen Clark announced a national target of 90 percent renewable electricity by 2025, with wind energy to make up much of that increase.
Solar power
Solar technologies in New Zealand have only recently in the past few years become affordable alternatives compared to previous renewable offerings. The uptake in the residential and commercial market though slow has increased steadily. As with all renewable options, price of generation is key to the sustainability, it is only these recent changes in pricing that may see solar generation plants in the future.
Solar hot water
Installation of solar hot water heating systems is increasing in New Zealand due in part to government incentive schemes.
Biofuels
Biodiesel, bioethanol and biomass (generally in the form of wood) are all used in New Zealand as a source of renewable energy.