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

 

 

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