## 5 Results and Discussions
### Daytime Processing Heat and Total Power Consumption  
Figures 13 and 14 shows a scatter plot of the ratio of heat-processed in water-cooled HP operation and the rate of increase in total power consumption. The scatter plot shows each case monthly. The lower the ratio of heat-processed in water-cooled HP operation, the more the building load is processed by the heat utilization operation. In addition, the heat storage system suppresses the peak in the daytime. The ratio of processing heat for water-cooled HP operation is calculated by Equation (2), and the rate of increase in total power consumption is calculated by Equation (3). The ratio of heat-processed by water-cooled HP operation is the ratio of building load processed using water-cooled HP. The rate of increase in total power consumption is the result of comparing the power consumption of each case with the water-cooled HP operation case. Power consumption includes power consumption of heat source equipment and pumps. Figure 14: Processing heat ratio of the water-cooled HP in heating operation and rate of increase in total power consumption. Figure 13: Processing heat ratio of the water-cooled HP in cooling operation and rate of increase in total power consumption. Figure 13 shows the Case WTES-C1-7 and Case ATES-C2-7 have a low the ratio of heat processed in water-cooled HP operation and suppress daytime power consumption. Case ATES-C2-7 has the same ratio of heat-processed in water-cooled HP operation and total power consumption as Case WTES-C1-7. Case ATES-C2-14 has a ratio of heat-processed in water-cooled HP operation of 10% to 20% point (pt) higher than Case WTES-C1-7. Total power consumption is reduced by 20%. Case ATES-C1-7 has a higher ratio of heat-processed in water-cooled HP operation and total power consumption than Case WTES-C1-7. Figure 14 shows the processing heat ratio of Case WTES-H1-45 in water-cooled HP operation is low, and daytime power consumption is suppressed. Figure 14 shows the Case WTES-H1-45 has a low ratio of heat-processed in water-cooled HP operation and suppresses daytime power consumption. Case ATES-H2-30 has a higher ratio of heat-processed in water-cooled HP operation of 40% to 50% pt than Case WTES-H1-45. Case ATES-H2-25 is 60% pt higher. Case ATES-H2-30 and Case ATES-H2-25 have a lower nighttime heat storage temperature than Case WTES-H1-45. Therefore, the power consumption of the nighttime heat storage operation is reduced, and the total power consumption is reduced. Since the room temperature in winter is the same as the aquifer temperature, it was difficult to operate the pre-heating coil. \[Q_{rate}=\frac{Q_{W\_HP}}{Q_{Load}}\times 100 \tag{2}\]  
\[W_{rate}=\frac{W_{ATES}}{W_{W\_HP}}\times 100 \tag{3}\]  
where \(Q_{rate}\) is the ratio of processing heat for water-cooled HP operation [%], \(Q_{W\_HP}\) is processing heat of water-cooled HP [kW], \(Q_{Load}\) is building load [kW], \(W_{rate}\) is rate of increase in total power consumption [%], \(W_{W\_HP}\) is water-cooled HP power consumption [kW], \(W_{ATES}\) is ATES system power consumption [kW]. Figure 15 shows the power consumption and energy efficiency. Table 5 shows the seasonal power consumption and energy efficiency. The coefficient of performance (COP) is calculated by Equation (5), the energy efficiency ratio (EER) is calculated by Equation (6), and the seasonal energy efficiency ratio (SEER) is calculated by Equation (7.) The COP is the ratio of the heating or cooling output power to the input power demand of the heat pump. The EER is calculated by multiplying the COP by 3.413. EER values of higher 8.5 are efficient. A higher EER rating means that of cooling effect for every Watt of energy you provide. The SEER is the ratio of the total cooling of the heat pump to the total electrical energy input during the same period. SEER values of 8-10 are efficient.