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Summary With a Base Case and Winning Case

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An example is provided below that shows how the summary tab looks with a base case and winning case. The numbered sections are described below

Section 1: lists the sensitivities in the HOMER model. If you have no sensitivities, then this section is blank. The winning system and the base case are for the sensitivity currently selected.

Section 2: shows the architecture of the winning system along with the system sizes

Section 3: shows the architecture of the base case system along with the system sizes of components if any. You can change the base case by clicking on the “Change Base Case” button.

Section 4: compares the economics of the winning system with the base case system and lists the Internal Rate of Return, Return on Investment and Simple Payback.


Section 5:  plot displaying how the hybrid system saves money over the project lifetime: the cummulative nominal cashflow over the project lifetime. The blue line is the winning system and the gray line is the base case system. The simple payback in years occurs when the two lines cross each other and is highlighted by the black line in the plot.

Section 6: gives you access to the simulation details of the winning system – cashflow, timeseries etc. This is a short-cut to the simulation results for the lowest NPC system, which you can also access from the ‘Tables’ tab.

Section 7:  the comparison between the costs (initial, operating and cost of energy) and the savings in the utility bill

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