http://www.theburnerbooster.com/
Appendix A
Methodology for Calculating Oil Savings
The following outlines the methodology for calculating oil savings given the data from the Burner Booster site assuming all obligations are met as outline in the attached proposal.
Data Needed:
1. Gallons of oil used before installation of the Burner Booster over a given period
2. Gallons of oil used after installation of the Burner Booster over a given period
3. Average degree days before installation of the Burner Booster over the same given period oil was used*
4. Average degree days after installation of the Burner Booster over the same given period oil was used*
Calculation:
1. Divide Gallons of oil used over given time period before installation by the same period of time oil was used = average gallons of oil used before installation
2. Divide Gallons of oil used over given time period after installation by the same time period oil was used = average gallons of oil used after installation
3. Subtract average gallons used before installation by average gallons used after installation = net average gallons used
4. Divide net average gallons used by average gallons used before installation = % oil used
5. Subtract average degree days from given time period before installation by average degree days from given time period after installation = change in average degree days
6. Divide change in average degree days by average degree days from given time period before installation = % change in average degree days
7. Adjust oil savings % by % change in average degree days (if % change in average degree days is positive, then reduce oil savings % by that %; if % change in average degree days is negative, then increase oil savings by that %)
Example:
Data:
1. 7,164 gallons used before installation over a 100 day period
2. 4,591 gallons used after installation over a 86 day period
3. 32 average degree days during before installation time period
4. 29 average degree days during after installation time period
Calculation:
1. 7,164 / 100 days = 71.64 gallons per day
2. 4,591 / 86 days = 53.45 gallons per day
3. 71.62 – 52.54 = 18.19
4. 18.19 / 71.64 = 25.4% oil savings (before any adjustments)
5. 32 – 29 = 3 average degree days
6. 3 / 32 = 9.4% (positive, so decrease oil savings %)
7. 34% x 9.4% = 3.2%
8. 25.4% - 3.2% = 22.2% oil savings (after adjustments)
*Note: Average heating degree days can be obtained from a variety of site (i.e. http://www.wunderground.com/history/)
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