Yes, that's one very important thing and that reduces the overall cost to the system and the cost to the customer. When you're able to shave that peak and fill the valley, that's one piece. The second piece is because there's a greater interaction with the customer, the customer becomes more aware of the price, the customer becomes more aware of their consumption, and studies have shown there is a net reduction, a net energy efficiency, as a result of the installation of these sorts of devices.
On December 6th, 2007. See this statement in context.