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The government has revealed a raft of new regulations aimed at increasing energy efficiency, including tougher requirements for home insulation and energy efficient lighting in offices.
Prime Minister Helen Clark and Building and Construction Minister Clayton Cosgrove announced the changes to the Building Code and Compliance Documents today.
Miss Clark said the changes would help New Zealand move towards being a "truly sustainable nation".
"Creating more efficient houses and commercial buildings is a triple win for New Zealanders' health, our environment and our power bills," she said.
From November new houses in the South Island and the North Island's Central Plateau will need more insulation and double-glazing.
Improvements to house insulation in the North Island will take effect in most of the North Island in July 2008 and for Auckland and further north from October next year.
Other changes include a compliance document that would reduce the cost of installing solar water heating systems by up to $500 and new requirements for energy efficient lighting in new and refitted commercial buildings.
Miss Clark said the costs of the new regulations would be covered by subsequent savings on power bills.
"We also know that warmer and dryer homes are much healthier homes," she said.
Mr Cosgrove also announced proposals to require hot water systems in homes and, heating, ventilation and air-conditioning systems in offices to be more efficient.
Both have also been opened to public consultation on the Department of Building and Housing's website.
"I urge New Zealanders to take this opportunity to have their say on the future of our homes, workplaces, and environment," Mr Cosgrove said.
Consultation will close on 29 June 2007, with decisions being announced from October 2007.
