Anyone knows how Controlled Load is "Controlled". Whether it is controlled by the power supplier network, or relying on the appliance (hot water system) to draw power at the "right time"? I have an electric hot water system connected to Controlled Load. It worked fine for years.I just got my latest quarterly bill (for March to May), and Controlled Load is zero, while Peak Load increased correspondingly. My hot water is still working, so I know it is receiving power some how.