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CoPower head David Berliner atop the building that houses the firm's Toronto office (Daniel Alexander for Report on Business magazine)

CoPower head David Berliner atop the building that houses the firm's Toronto office

(Daniel Alexander for Report on Business magazine)

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Hart House, the aged student centre at the University of Toronto, wasn’t the most energy-efficient building on the block when David Berliner took over in 2009 as its sustainability co-ordinator. That it was musty, creaky and leaky was reflected in its energy bills. Berliner felt the university could save big bucks and reduce its carbon footprint by installing new windows and LED lighting fixtures throughout.

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