Sep 26, 2025
Build Magazine
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Powering homes, empowering our nation

Rewiring Aotearoa CEO Mike Casey writes in Build Magazine about the role electrification and rooftop solar can play in energy efficiency. "While this transition increases electricity use, it can reduce overall household energy consumption by up to 70% – a far greater efficiency gain than measures like insulation and sealing, which have long been the focus of energy-efficiency efforts. While thermal envelope upgrades remain important, electrification offers a better return on investment for households. This goes against conventional wisdom, but it’s due to the price drops in solar, heat pumps and electric vehicles."

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