How can the use of smart thermostats impact a home's energy performance?

The use of smart thermostats significantly impacts a home's energy performance by optimizing heating and cooling schedules. Smart thermostats are designed to learn the household's behavior and preferences, allowing them to automatically adjust temperature settings based on when the home is occupied or unoccupied. This results in more efficient energy usage, as the system can lower heating or cooling when it's not needed, thereby conserving energy and reducing utility bills.

By programming heating and cooling more effectively, inhabitants can maintain comfort while minimizing energy waste, which aligns closely with the goals of improving a home’s energy efficiency according to Home Energy Rating System standards. This capability to adjust in real time based on occupancy and energy needs illustrates the advanced functionality of smart thermostats beyond merely maintaining a set temperature.