Built in 1915, this St. Louis landmark received a $2.4 million energy efficiency retrofit. The PACE improvements included Energy Management Controls, HVAC upgrades, New On-Site Steam Generation and High Efficiency Lighting and produced $200,000 per year in energy savings. PACE is especially suited for non-profits because the program guidelines specify zero cash down and the projects generally improve their cash flow. This enables them to have funds for more member visible initiatives. PACENow Case Study.