Algorithm 1 Energy saving algorithm

1: procedure energySaving(period)

2:   if timeperiod == Academic ∧ presence == Yes then

3:     tmpnow = tmpdesired − tmpindoor

4:     if roomtype == Private then

5:        if ((Tback − 60 min × tmpnow ≤ time) ∧ timebackPeriod > 60 min) ∨ (Tback ≤ time + 30 min ∧ timebackPeriod > 60 min) then

6:          if tmpnow > 0 then

7:             while proxTback − 60 min × tmpnow do

8:                thermostattmp + 1                        ▷ Increased temperature

9:          else if tmpnow < 0 then

10:            while proxTback − 60 min × tmpnow do

11:               thermostattmp − 1                        ▷ Decrease temperature

12:        else if roomtype == Common then

13.          if timeperiodDay ƒ = Night then

14:            n = timenow

15:            if timeperiodDay == Morning then

16:                while timeperiodDay = Morning do

17:                  thermostatstmp = ${{\displaystyle \sum }}_{i=7}^n\sqrt{tm{p}_{indoor}i}$

18:                  if tmpdesired = thermostatstmp then

19:                    break loop

20:           else if timeperiodDay == Afternoon then

21:                while timeperiodDay = Afternoon do

22:                  thermostatstmp = ${{\displaystyle \sum }}_{i=15}^n\sqrt{tm{p}_{indoor}i}$

23:                  if tmpdesired = thermostatstmp then

24:                    break loop

25:           else if timeperiodDay == Evening then

26:                while timeperiodDay = Evening do

27:                  thermostatstmp = ${{\displaystyle \sum }}_{i=21}^n\sqrt{tm{p}_{indoor}i}$

28:                  if tmpdesired = thermostatstmp then

29:                    break loop

30:           else

31:            thermostatsstatus = Off

32:        else if timeperiod == NonAcademic ∧ timeperiod ≥ 10 days then

33:          thermostatsstatus = Off

34:        thermostatsstatus = Off

35:   else

36:        thermostatsstatus = On