Demand response encourages businesses to shift their electricity use from peak hours to off - peak hours to reduce demand on the grid while reducing their energy costs. (ieso.ca)
The switches could be programmed to shut off when power demands on the grid (and hence electricity prices) peaked. (discovermagazine.com)
Both strategies have been shown to increase the rate of daytime charging, which is what utilities want because that is when there is often less demand on the grid. (scientificamerican.com)