An engineer says councils and Government are not making the most of wastewater heat as a cheap and readily available energy source.

An engineer says councils and Government are not making the most of wastewater heat as a cheap and readily available energy source.

An engineer says councils and&nbsp;Government are not making the most of wastewater heat as a cheap and readily available energy source.

Engineer calls for greater use of wastewater heat

Smart, in-depth and relentlessly curious, host Kathryn Ryan dives into the stories shaping New Zealand and its people. Interviews and expert analysis from around the world and at home. It’s where big ideas are unpacked and everyday life explored.

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Engineer calls for greater use of wastewater heat

Engineer calls for greater use of wastewater heat