Case Study
Drewlo Holdings - Multi-Unit Residential Building Ontario. Canada
| FINANCIAL SAVING |
$4,532 (CAD) |
| CO2 SAVING |
38,684kg |
The performance of EndoTherm was piloted by Drewlo at 310 Dundas a multi-unit residential building (MURB) in London, Ontario Canada.
EndoTherm was installed on the 2nd November 2020 with no interruption to the heating system operation and therefore the tenants did not experience any interruption in their units.
An initial baseline was created using historical consumption provided by Drewlo. Data between March 2017 and October 2020 was normalised using Heating Degree Days (HDD) from London Airport (CYXU) at a baseload of 18.5°C.
The regression showed a strong R2 (0.9694) but two outliers. These were later identified as estimated bills and therefore removed from the analysis. The baseline also showed a slight decrease in consumption from March 2020 which is surprising as COVID-19 caused increased occupancy in multi-unit residential buildings. As a result a shorter baseload (R2 of 0.9806) was considered most suitable for comparison.
EndoTherm was installed on the 2nd November 2020. The five months post-install (including the month in which EndoTherm was installed) have been compared with the pre-install baseline.
For each week the known value for HDD (x) was input into the trendline equation to predict consumption based on the demand profile for the 8 weeks immediately before installation.:
Results
| Analysis Period | HDD | Predicted Consumption (M3) | Actual Consumption (M3) | Difference (M3) |
|---|---|---|---|---|
| 2020-10-27 to 2020-11-26 | 375.90 | 21,896.4382 | 19,401.06 | 2,495.3782 |
| 2020-11-26 to 2020-12-31 | 643.80 | 37,273.3624 | 37,684.84 | -411.4776 |
| 2020-12-31 to 2021-01-27 | 556.40 | 32,256.772 | 26,429.83 | 5,826.9472 |
| 2021-01-27 to 2021-02-23 | 711.60 | 41,164.9468 | 35,028.03 | 6,136.9168 |
| 2021-02-23 to 2021-03-29 | 538.90 | 31,252.3122 | 28,511.19 | 2,741.1222 |
| Total | 163,843.84 | 147,054.95 | 16,788.89 |
Savings
| Total Saving: |
10.24% |
| Total Cash Saving: |
$4,532 (CAD) |
| Total CO2e Saving: |
38,684kg |