Title/Description of the element

In this case

Case name

Large Car Park

Significant energy use

Ventilation and Lighting: electricity consumption in kWh

data frequency/highest common interval between observation

1/86,400 Hz (24 h)

Baseline period

5th November 2016-6th December 2016

ECM implementation

1: 7th December 2016 2: 8th February 2017 3: 29th March 2017

Reporting period

8th December 2016-31st July 2017

Achieved savings

98,236 kWh

95% prediction interval

+/− 48,195.81 kWh (49% of achieved savings)

Regression model

Y = 698.396 − 322.982D1 − 94.815D2 − 45.233D3

R2

0.67

adj. Root mean squared error (RMSE)

103.754 kWh

Coefficient of variation CV(RMSE)

0.31

Table of coefficients