Case Study

Multivesco
200 Rue Montcalm

Gatineau, Quebec, Canada

11.64

FINANCIAL SAVING

$7,011 (CAD)

CO2 SAVING

110,400 kg

A pilot of EndoTherm was run by Multivesco at 200 Rue Montcalm in Gatineau after recommendation from WSP’s team in Ottawa. This modern, glass fronted Class A office is heated and cooled by a two-pipe heat pump system. This means EndoTherm will provide improvements in heat transfer throughout the heating and cooling season. The product was installed into Tower 1 which takes up 60% of total electrical consumption of the site.

The site is not sub-metered and thus the total consumption includes other electrical loads such as lighting / computers. This baseload (none-HVAC consumption) will be identified as part of the analysis. 60L of EndoTherm was installed into the system in January 2019.

The measurement & verification is based on the ‘International Protocol for the Measurement & Verification of Performance (IPMVP).’ Historical data was supplied by WSP/Multivesco over the past 2 years. This did include some estimated data which was eliminated from consideration. The consumption data was normalized using Heating & Cooling Degree Data from the nearby weather station at Gatineau Airport at a baseload of 18.5°C.

The billing data for April/May and May/June was estimated data. Thus the meter reading taken on the 31st July 2019 suggests that this estimate was on the low end as the value for June – July was higher. If you average these 3 months there is a saving compared to similar months in previous years.

The final time monthly period runs from the 23rd June – 31st July runs for 38 days. This is 7 days more than the rest of the monthly periods and thus the non-electrical baseload will be increased. To reflect this the baseload will be increased from 293,403kWh to 359,655kWh.

The predicted consumption is calculated by inputting the combined HDD+CDD into the line of best fit equation y= 317.7x + 293,403. This is compared with the predicted consumption to calculate the saving during the time period.

Results

From

To

No. Days

HDD

CDD

HDD+CDD

Consumption

A / E

Predicted

Difference

2019-01-24

2019-02-23

30

901.1

0

901.1

545400

A

579682.47

34282.47

2019-02-24

2019-03-25

29

745

0

745

525600

A

530089.5

4489.5

2019-03-26

2019-04-23

28

446.5

0

446.5

360000

A

435256.05

75256.05

2019-04-24

2019-05-23

29

261.7

2

263.7

287100

E

377180.49

90080.49

2019-05-24

2019-06-23

30

102.7

29.1

131.8

287100

E

335275.86

48175.86

2019-06-23

2019-07-31

38

14.3

171.5

185.8

411300

A

418683.66

7383.66

TOTAL

184

2471.3

202.6

2673.9

2416500

 

2676168.03

259668.03

Savings

Compensated Saving:

11.64%

Total Cash Saving:

$7,011 (CAD)

Total CO2 Saving:

110,400 kg

Over the 6-month pilot period the actual consumption was 259,668kWh lower than the predicted consumption. This is a 9.7% reduction in consumption. It is worth noting that the baseload (293,403kWh) for each month is roughly 50% of the total consumption thus cooling accounts for only 50% of total consumption. This would make the HVAC saving 19.4%. As EndoTherm was only installed into Tower 1 (60%) the saving is therefore 11.64%

This is higher than the average saving achieved by EndoTherm over the past 5 years and can most likely be accounted for by variance in other electrical consumption on site. At 4.5c/kWh this is a saving of $7,011. This also confirms that the product investment has a typical ROI within 1 year.

Each kWh saving is also a reduction of CO2e. The total saving is equivalent to 110,400kg (110.4 metric tonnes) of CO2e.