Land, Buildings & Real Estate developed an ongoing commissioning (OCx) program to identify and implement opportunities to improve energy performance. The OCx team tackles one building at a time in month-long phases, looking for and implementing low-cost, high-outcome efficiency improvements. In 2023, OCx resolved more than 100 issues across the Thornton, Wallenberg, Havas, and Varian buildings. Many of these improvements were achieved through programming changes, which required no new hardware or space modifications. For example, over $4,000 per year was saved at Wallenberg with no-cost changes to the control systems.