This device would be easy on the grid (Score 3, Interesting)

I work at a company which manages the power grid for all or parts of thirteen states. This device would work to even out the load curve. I know the dispatchers in the control room wouldn't mind a flatter load curve during traditionally high load periods. That said, I don't see this being very useful for single family homes at the price points mentioned. Multi-tenant units could benefit if they would be willing to aggregate their metering.