Since the thermostat change was very small for all three homes between period two and three, the warm-up period will be ignored. There were no other anomalies with the data throughout period three. Period averages were looked at in an effort to draw initial conclusions about the difference between the predicted data and the measured data. Period averages for the overall simulation, for each house, for the high thermostat and for the low thermostat settings are presented in Table 3. Table 4 shows the period averages broken down individually for each house.
All units are in kWh.
The overall averages were practically the same showing a strong overall accuracy of the software. Isolating each building technique and thermostat setting as variables, the period average error did not exceed four percent. 5.95 Table 4. Individual Period Averages Table 4 shows a detailed look at all nine sets of data. Again, regardless of thermostat setting, the simulation model is very accurate with error never exceeding nine percent.