#1- Build a Faraday cage around the smart meter receiver and transmitter. Most smart meters use wireless to communicate to the power company, a Faraday cage built around the meter would stop transmission and protect the residents from the wireless transmissions which are known to cause Electromagnetic illnesses.
#2- Purchase AC power conditioners for individual devices, or buy one that will service you whole house.
#3- Go off the grid. It would be a good idea to have independent power regardless. Society is being forced toward a system of interdependence, with control of power in the hands of a few people or a fasci of people. Being independent is the best way to divest from the talk-sick system.