Significantly reducing energy use in commercial buildings is a challenge. Doing so in cold climates even more so. Getting to Net Zero Energy use in these climates, now that’s what we call a tough. But with good design and engaged tenants, the near impossible becomes entirely possible, practical, and fun. This panel will describe key strategies for greatly reducing energy consumption in commercial buildings in cold climates with a focus on smart choices for building design, high performance mechanical systems and the tenant’s role. Specific strategies and systems will be discussed with pros, cons, and application advice. Several Net Zero Energy commercial buildings in cold climates will be highlighted to show the theory in practice.