a person adjusting a thermostat remotely, highlighting the convenience and energy efficiency of smart home systems

electricity power electrical vehicle car ian circuit current appliances wiring generator motor energy grid utility charging charge outlet shock safety engineering consumption bill transmission distribution system component resistance conductivity field potential conversion technology industry infrastructure alternating direct plug socket switch light heater fan oven stove plant renewable nonrenewable efficiency voltage amperage kilowatthour kwh person adjusting thermostat remotely highlighting convenience smart home systems systems