North American net zero buildings by major city 2015

This statistic displays the number of zero-energy buildings located in North America as of 2015, based on major cities. During this period, Calgary, Alberta, Canada had some 202 net-zero energy units. In the United States, there were almost 6,800 net-zero housing units. Zero-net-energy buildings have been developed to produce as much energy as they consume over an entire year.本统计数据显示截至2015年，北美地区主要城市中零能耗建筑的数目。在此期间，加拿大艾伯塔省卡尔加里市拥有约202套净零能耗单元。在美国，约有6,800套净零能耗住宅。零能耗建筑旨在在整个一年内生产与消耗等量的能源。