Case Study
Waterloo Regional School District Board Ontario, Canada
| TOTAL ENERGY SAVING |
277.88 M3 |
| CO2 SAVING |
520 kg CO2e |
As part of their due diligence into the EndoTherm technology the energy management team at Waterloo Regional District School Board decided to run a pilot at the Blair Outdoor Education Centre.
Blair is one of five Outdoor and Environmental Education Centres, however due to the COVID-19 pandemic the site was not occupied (with the exception of a custodian) making it a great control site for EndoTherm analysis.
Due to a number of estimated bills the chosen analysis methodology included weekly meter readings across the 2021/22 heating season with EndoTherm installed mid-way through the heating season (end of January 2022). Weekly meter readings were normalized using Heating Degree Days (HDD) from Waterloo Well Airport (CYKF) at a base temperature of 18.5°C.
The baseline (above) shows a strong correlation between consumption and Heating Degree Days validating the selection of the site. The site does show a slightly stronger correlation with a polynomial regression (R2 of 0.9712) and a equation of y =-0.0033×2 + 2.4836x – 70.441 where x is the HDD value for each week therefore this will be the lead analysis (though both linear and polynomial regressions will be considered).
EndoTherm was installed into the Blair Centre on the 28th January 2022.
Post-Install EndoTherm Comparison at Blair Centre
Results
| Reading Date | HDD | Usage (M3) | Predicted (Linear) | Predicated (Polynomial) |
|---|---|---|---|---|
| 04-Feb-22 | 194.2 | 236 | 274.17 | 287.42 |
| 11-Feb-22 | 173.2 | 215 | 246.65 | 260.72 |
| 17-Feb-22 | 156.3 | 204 | 224.51 | 237.13 |
| 25-Feb-22 | 181.4 | 238 | 257.40 | 271.49 |
| 04-Mar-22 | 173.3 | 226 | 246.78 | 260.86 |
| 11-Mar-22 | 136.7 | 188 | 198.82 | 207.40 |
| 18-Mar-22 | 136.2 | 178 | 198.16 | 206.61 |
| 25-Mar-22 | 98.3 | 144 | 148.50 | 141.81 |
| 01-Apr-22 | 140.8 | 192 | 204.19 | 213.83 |
| 08-Apr-22 | 105.1 | 142 | 157.41 | 154.13 |
| 14-Apr-22 | 72.1 | 92 | 114.16 | 91.47 |
Savings
| Total Saving: |
11.91% |
| Total Energy Saving: |
277.88 M3 |
| Total CO2e Saving: |
520kg CO2e |
Carbon Reduction Equivalents:
