Canada’s first net-zero energy municipal library shows what’s possible

Completed in 2015, the library is a model of sustainable construction. It is built with sustainable materials and heated through a combination of solar panels and geothermal heat pumps. Up to 50,000 megawatts of excess solar energy can be returned to Hydro-Québec, for which the city receives a credit. Expansive windows provide abundant natural light, and some are motorized for natural ventilation. Low-flow toilets and taps have reduced water consumption by at least 27 percent. 

The building has Leadership in Energy and Environmental Design (LEED®) Gold certification and is on track to reach net-zero energy by 2021. When it does, it will reduce its energy consumption by 2,975 gigajoules per year and save $80,000 in annual energy costs.  

The two-floor building has a total area of 2,000 square metres and is an accessible environment in which community members can learn and discover. The new library includes an activity room, work spaces, a reading room, a family and breastfeeding area, a computer lab, listening and viewing stations, and a multi-purpose space. Attention was paid to every detail, including heated floors and shelving aligned with the windows for light. 

Armed with a wealth of new knowledge after completing this project, the city takes every opportunity to showcase its lessons learned—regularly sharing data and knowledge to help other communities achieve their own sustainability goals.

The City of Varennes plans to apply similar sustainability standards to future municipal buildings. 

A dream come true! This is the best way to express the feeling of pride the elected officials and citizens of Varennes have about this great achievement. [This project] will change the way public buildings are constructed for the future.”

-Martin Damphousse, Mayor of the City of Varennes