How do I specify the DC bus voltage?
HOMER allows you to set the DC bus voltage by defining a number of batteries per string. On the battery input page, choose a battery type and specify the number of batteries per string. HOMER displays the bus voltage, which it calculates by multiplying the battery's nominal voltage by the number of batteries per string. In the sizes to consider table, instead of entering numbers of batteries, enter numbers of strings. (Remember to include a zero in the table if you want to consider systems with no batteries.)