Rodney McDonald, Principal and Practice Leader, Avison Young 19 Issue 4 Winter Edition 2017 UPWORD FOREWORD Trends in High Performance Buildings The Manitoba Building Expo’s expert panel shares their top trends in high-performance buildings. Solar Energy “Solar energy is the fastest-growing source of energy generation in North America.” McDonald referred to sun-powered Walgreens stores, one of the largest drugstore chains in the United States, and credited the brand with integrating impressive energy savings in the form of rooftop solar panels on more than 150 stores across the country.