Optimal control of greenhouse climate with grower defined bounds

3. Results The daily optimization results with standard settings for the whole year 2012 are shown in Fig. 2 and Table 1. Optimization for the whole year resulted in a reduction of 47 % in heating, 15 % in cooling, and 10 % in CO2 injection for the year 2012. When the minimum pipe temperature of the grower was implemented, still, a reduction of 28 % in heating, 14 % in cooling, and 10 % in CO2 injection use was found. The effect of different bounds on the optimal energy input was analyzed.