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HOMER Grid 1.8

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This article provides an explanation of a few of the data series found in the Time Series plot.

Total Consumption Rate

Grid Sellback Rate

Total Consumption Rate

The total consumption rate is a data series which consolidates all of the consumption prices for the year based on grid purchases, including consumption rates of the type “NET, Net Purchase and Import”. The total consumption rate is calculated by dividing the total monthly consumption cost ($) by the total monthly grid purchases (kWh). If there have been no grid purchases in the month, then the total consumption rate for the month will be 0 $/kWh. The time of use when a rate applies will be used to decide when the total consumption rate is 0 or non-zero in each time step within a month.

For example, assume there is a tariff with one consumption rate that applies only on weekdays from 9 am to 5 pm. The consumption rate (if there have been grid purchases) will look like this:

 

In each month, it will show the grid price only on M-F from 9 am to 5 pm.

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Grid Sellback Rate

The Grid Sellback rate is a data series which consolidates all of the consumption prices for the year based on grid sales, including consumption rates of the type “NET, Net Excess and Export”. The grid sellback rate is calculated by dividing the total monthly consumption cost ($) by the total monthly grid sales (kWh). If there have been no grid sales in the month, then the grid sellback rate for the month will be 0 $/kWh. The time of use when a rate applies will be used to decide when the total consumption rate is 0 or non-zero in each time step within a month. (Similar to the example above)

 

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