JOEL CEAUSU, MONTREAL GAZETTE

When Construction Voyer inaugurated six Net Zeo Energy condominiums in Duvernay recently, the 43-year-old firm was not introducing a new concept to the world.

The use of high-efficiency materials and innovative building practices to drive down energy usage – and costs- is not new; individual elements like insulation, sealing techniques, solar power and high-efficiency cooling and heating systems have been around for some time.

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