ATHLAZ,
A site can hold more accelerators than it can energise. The rack is available, the floor is available, and the accelerators can be bought. The power envelope, the switchgear and the grid connection cannot, at least not on the timescale the deployment plan assumes.
That changes what an efficiency gain is worth. When power is the constraint, a watt released is not a line on a utility bill. It is capacity that can be scheduled, revenue that can be booked and a deployment that can happen this year rather than after the next connection window.
It also changes where to look for the gain. Adaptive Current Modulation treats the power an accelerator draws as something software can shape. Headroom is then released from hardware already installed and already paid for. Nothing is built, nothing is dug, and control is handed straight back on removal.
The measured result behind that statement is stated plainly on the proof page: what was run, on what hardware, for how long, and what was held equal on both arms.