The Sample Project
Operating Cost Comparison
With your system details now fully defined for this project it is
time we turned our attention to the economics of this solution.
Click the Operating Cost Summary link from the right side bar or from the Economics drop down in the main navigation.
NOTE: The list of Technologies to Compare on this page is limited by which prices you entered on the project details page.
| Technologies to Compare: | Leave all checked |
|---|---|
| Renewable Electricity: | Leave unchecked |
| ASHP (HSPF) | 4.50 |
| Natural Gas (AFUE): | Default Value |
| Propane (AFUE): | Default Value |
| Fuel Oil (AFUE): | 80 |
| A/C (SEER): | 12 |
| ASHP (SEER): | 12 |
Buttons on this Page
 |
Opens System Efficiencies fo Gas & Oil Furnaces table in a new browser window. |
Annual Operating Cost and CO2 Emissions By Technology
At the bottom of the Operating Cost Summary page are two graphs. The first graph shows how much it would theoretically cost to operate each of the selected systems annually. The second graph is an estimate of the upstream and point of use CO2 emissions of each technology throughout a single year.
The cost is based on the system loads, the inputs you have added on this page and the per unit energy costs added on the Project Details page. If you don’t enter an energy cost for a technology on the Project Details page, it will not appear as an option for comparison on these graphs.
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