HOMER Knowledge Base
I am importing an electric load for a year that does not begin on a Monday. How do I upload that into HOMER?
I am importing an electric load for a year that does not begin on a Monday. How do I upload that into HOMER?
If the load you import does not begin on a Monday (2020 began on a Wednesday), the "Import & Edit" method, HOMER will simply shift all of the values up so that the Wednesday data is now considered Monday, and all of the remaining hours are shifted forward by 48 hours accordingly.
On the other hand, the "Import" + specifying-the-year method will copy values from the end of the year and paste those values to the top to fill in the "missing" values.
You can use whichever method accomplishes your needs. If your model includes a difference between weekday vs weekend utility tariff rates, I recommend using the "Import" + specifying the year method because the values that are inserted into the beginning of the year are weekday values. If there is not a real difference between weekdays and weekend load values, the "Import & Edit" method will work as the load values will shift 48 hours forward.
If the load you import does not begin on a Monday (2020 began on a Wednesday), the "Import & Edit" method, HOMER will simply shift all of the values up so that the Wednesday data is now considered Monday, and all of the remaining hours are shifted forward by 48 hours accordingly.
On the other hand, the "Import" + specifying-the-year method will copy values from the end of the year and paste those values to the top to fill in the "missing" values.
You can use whichever method accomplishes your needs. If your model includes a difference between weekday vs weekend utility tariff rates, I recommend using the "Import" + specifying the year method because the values that are inserted into the beginning of the year are weekday values. If there is not a real difference between weekdays and weekend load values, the "Import & Edit" method will work as the load values will shift 48 hours forward.