Case Study

St Joseph Mercy Hospital
Education Centre and Building 5305

Ann Arbor, Michigan. USA
FINANCIAL SAVING

$1,683 (USD)

CO2 SAVING

28,160 Lbs

The performance of EndoTherm was piloted by St Joseph Mercy Hospital in Ann Arbor (SJMAA) at the Education Center and Building 5305. The buildings are heated by two separate boiler systems on the same meter.

Historical data was collected for the site using a combination of monthly bills dating back to January 2015 and since April 2017, 7-day interval meter readings. Summer data has been removed as the heating is not utilized. The baseline is normalized using Heating Degree Day Data from Ann Arbor Municipal Airport.

The historical trendline is used to predict consumption based on the known HDD values for the post-EndoTherm period.

EndoTherm St Joseph Mercy Hospital Regression Graph

 

Savings

Compensated Saving:

10.43%

Total Cash Saving:

$1,683 (USD)

Total CO2 Saving:

28,160 Lbs

Excluding summer usage, the site was tested over 28 ‘winter weeks’ with 25 of them showing consumption below the baseline. The predicted consumption for the 28 weeks (from the trendline) was 23,037.05 CCF. The site actually used 20,632 CCF giving a total saving of 2,405.05 CCF.

This is a financial saving of $1,683.53 based on a unit price of $0.7/CCF and a total CO2e saving of 28,160lbs.

 

 

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