*3.1. Presentation of the IRRHEM Environment*

The energy consumption scenarios were carried out on a family house located in the city of Algiers in Algeria. Algiers is located in the north-center of the country and occupies an interesting geostrategic position, both from the point of view of economic flows and exchanges with the rest of the world, and from a geopolitical point of view. It extends over more than 809 km2. The city of Algiers is bounded to the north by the Mediterranean Sea with a coastline of 80 km, to the south by the Blida city, and to the west and east by the cities of Tipaza and Boumerdes, respectively [37] (Figure 9). It is characterized by a latitude of 36◦45 08" N, a longitude of 3◦02 31" E, and an elevation above sea level of 186 m. The home in the study was inhabited by a family of four members (a father, mother, boy, and girl) (Table 5).

**Figure 9.** Geographic map of Algiers city [38].

The climate in Algiers is warm and temperate. In winter, the rains are much more important in the city of Algiers than they are in summer. The annual average temperature in the city of Algiers is 18.2 ◦C. The mean annual precipitation is 615 mm. The driest month is July, with an average of 1 mm of rain. In addition, the record precipitation level is recorded in November with an average of 94 mm of rain. The warmest month of the year is August with an average temperature of 26.7 ◦C. The coldest month of the year is January with an average temperature of 11.0 ◦C. The difference in precipitation between the driest and wettest months is 93 mm. A variation of 15.7 ◦C is recorded over the year [39].

The family home contains a set of appliances that depend on electrical energy to operate. Table 6 presents a number of electrical appliances, their electricity consumption characteristics, and their location.
