You might be able to improve the efficiency of your HVAC system with a renovation and recommissioning, but then you're spending several times more money than you could spend on a smart HVAC retrofit. Additionally, you'll miss out on the benefits of improved system monitoring, scheduling, control and zone customization.
Commercial new-builds, renovations and building additions in the U.S. must comply with ASHRAE Standard 90.1-2016, which achieves about 8.2% energy cost savings on average, nationally, according to the U.S. Department of Energy (DOE). That's the minimum standard for new construction! We can do better.
Also according to DOE, U.S. commercial building owners could save an average of 38% on heating and cooling costs with energy efficient HVAC control systems. HVAC-related savings potential ranges from 22% to 56%, depending on building size, building use, regional climate and local utility costs. The country's commercial buildings need a health check!