English to Chinese Tech/Engineering IT (Information Technology) Smart buildings

The Redmond campus project, which is about 20% complete, has also allowed Microsoft to reduce its peak energy demand. "{We were causing our own peak demand just by how things were occurring in the building,}" Smith says. Resequencing when different building systems came online smoothed out the demand curve. In the pilot phase, Microsoft has so far shaved energy costs by 6% to 10%, while the application of analytics for fault detection and diagnostics is projected to save more than $1 million annually.
没明白这句话的意思。
我们自己的峰值需求是由于楼宇里面的各个系统运行使然？