Stewart Island (Rakiura) could be powered by solar energy by the end of 2026, with officials saying the long-promised renewable energy project may be operational by Christmas. The island's approximately 480 residents currently rely entirely on diesel generators for their electricity, making power significantly more expensive than on the mainland.
The project, which has been in planning for several years, would see a solar generation system combined with battery storage installed on the island. If approved and contracted in the coming months, construction could begin in mid-2026 with the system coming online before the end of the year, according to officials involved in the project.
Shifting Rakiura away from diesel would reduce both the cost of electricity for residents and the island's carbon emissions. Diesel fuel must be shipped to the remote island, adding to both costs and logistical complexity. A solar-plus-battery hybrid system would dramatically cut ongoing fuel costs and reduce the environmental footprint of the community.
Stewart Island sits off the southern tip of New Zealand's South Island and is home to a small but permanent community, as well as being a popular destination for tourists and trampers visiting Rakiura National Park. The island's isolation has historically made energy supply challenging and expensive. Officials have indicated that community consultation and regulatory approvals are among the remaining steps before construction can proceed.
