*3.1. Satisfaction Concept*

The human experience is complex to describe since it depends on the reality of each person. Satisfaction, on the other hand, is a more general concept and describes the user's perception and how its expectation can be fulfilled [7]. This research proposes a model to quantify satisfaction in the context of a household with different devices. The use of each device provides different levels of satisfaction at different times of the day. Daily moments are captured and summed up to build the energy satisfaction concept. As part of this model, we also consider excessive and poor consumption.

#### *3.2. User Input Satisfaction*

The proposed algorithm will be finding the hours of the day for which energy should be allocated to achieve the maximum satisfaction at a minimum energy consumption. For the user satisfaction, it is assumed:


**Table 1.** Levels of Satisfaction.

