Many SEM programs are relatively new, and only a handful have reported—much less verified—energy savings due to the challenges in quantifying savings. Some program administrators considering SEM are hesitant to implement programs without more evidence that savings are verifiable and sustainable. This paper begins to address these barriers by outlining the variations in SEM program designs, identifying the challenges to quantifying energy savings, presenting evaluated savings for four SEM programs, proposing strategies for improving the likelihood that savings are quantifiable, and summarizing research in the pipeline.