An electronic control system to control exploitation of electrical power produced by a household photovoltaic system to electrically power supply remotely electronically-controllable household appliances; the household photovoltaic system is electrically connected to a public electrical power mains and to a household electric system through an electronic electrical power meter configured to measure the electrical power produced by the household photovoltaic system and the electrical power absorbed from or supplied to the public electrical power mains as a result of an electric power underproduction or overproduction by the household photovoltaic system compared to the electrical power consumption of the household electric system; the electronic control system comprises an electronic control unit provided with a programming user interface and configured to communicate with the electronic electrical power meter to determine an excess of electrical power produced by the photovoltaic system over the electrical power consumption of the household electric system, and with the electric household appliances to remotely control operation thereof based on the excess of electrical power produced by the photovoltaic system over the electric power consumption of the household electric system, on programmed operation priorities, and on programmed automatic operating modes; the electronic control unit is further configured to store a plurality of user-selectable operating modes of the electric household appliances and to allow the following programming of the operation of the electronic control unit to be performed via the programming user interface: - inputting a list of electric household appliances to be remotely controlled, and information indicative of the electrical and operating characteristics of the electric household appliances comprising electric power consumption and durations of the operating cycles; - programming operation priorities of the electronic household appliance to define a timeline of operation of electric household appliances, - programming a specific automatic operating mode for each of the electric household appliances and selectable from: - one or different first automatic operating modes aimed at prioritizing completion of the operating cycles of the electric household appliances within programmable completion times with respect to the exploitation of electrical power produced by the household photovoltaic system for the execution of the operating cycles of the electric household appliances, and - one or different second automatic operating modes aimed at prioritizing exploitation of the electrical power produced by the household photovoltaic system for the execution of the operating cycles of the electric household appliances with respect to the completion of the operating cycles of the electric household appliances within programmable completion times. - inputting a list of electric household appliances to be remotely controlled, and information indicative of the electrical and operating characteristics of the electric household appliances comprising electric power consumption and durations of the operating cycles; - programming operation priorities of the electronic household appliance to define a timeline of operation of electric household appliances, - programming a specific automatic operating mode for each of the electric household appliances and selectable from: - one or different first automatic operating modes aimed at prioritizing completion of the operating cycles of the electric household appliances within programmable completion times with respect to the exploitation of electrical power produced by the household photovoltaic system for the execution of the operating cycles of the electric household appliances, and - one or different second automatic operating modes aimed at prioritizing exploitation of the electrical power produced by the household photovoltaic system for the execution of the operating cycles of the electric household appliances with respect to the completion of the operating cycles of the electric household appliances within programmable completion times. - one or different first automatic operating modes aimed at prioritizing completion of the operating cycles of the electric household appliances within programmable completion times with respect to the exploitation of electrical power produced by the household photovoltaic system for the execution of the operating cycles of the electric household appliances, and - one or different second automatic operating modes aimed at prioritizing exploitation of the electrical power produced by the household photovoltaic system for the execution of the operating cycles of the electric household appliances with respect to the completion of the operating cycles of the electric household appliances within programmable completion times.