The term ‘smart appliance’ means a product that uses electricity for its main power source which has the capability to receive, interpret and act on a signal received from a utility, third party energy service provider or home energy management device, and automatically adjust its operation depending on both the signal’s contents and settings from the consumer.The smart meter and smart appliances can send signals along the power line, turning your home wiring into an ethernet network. The appliance can send data to the meter, and the meter can send signals back to the appliance.
One of the major early applications was controlling your central air conditioner so the utility can shut it down if the power system is under stress.
Sounds like an excellent opportunity for an aftermarket “power scrubber” that blocks everything but the Alternating Current. The ultimate “low pass” filter.