Objectives To replace cooling towers located on the 52nd level of a commercial high-rise building in downtown Los Angeles. Solutions This client chose Mesa because of the company’s extensive experience in performing complex air conditioning system retrofits on a turnkey basis. From the start, Mesa faced two challenges. First, the building’s cooling had to be maintained …

In 2010, 4 Mort St, Canberra (Figure 1) was upgraded to significantly improve its energy performance. The retrofit was performed with the dual constraints of a limited budget and the building remaining occupied during the upgrade. This Case Study covers the key factors that enabled this 45 year old commercial office building to achieve a …