Energy consumption and occupants' comfort are key factors when evaluating smart-home environments. This paper focuses on occupants' comfort, which is affected by environmental factors (such as temperature, humidity, radiation of elements, and air movement), and occupant-related factors (such as occupants' level of activity, clothing insulation). To satisfy a thermal comfort objective, energy is needed for heating and cooling, which affects energy consumption. This paper presents a proof-of-concept analysis of smart-home control based on occupants' activity level in terms of human energy expenditure, and a trade-off analysis of the energy consumption versus thermal comfort when the activity level serves as an input into an intelligent home energy management system.
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