do not allow 0 sizing of battery, use ceil instead of round for num_s…

…trings
NREL · Sep 3, 2020 · f2d7c17 · f2d7c17
1 parent b2b365a
commit f2d7c17
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/files/BatteryTools.py b/files/BatteryTools.py
@@ -96,9 +96,7 @@ def check_keys(keys):
 
     def size_from_strings(capacity):
         num_series = math.ceil(desired_voltage / batt_Vnom_default)
-        num_strings = round(capacity * 1000 / (batt_Qfull * batt_Vnom_default * num_series))
-        if num_strings < 1:
-            raise ValueError("Calculated number of strings less than 1; increase desired capacity.")
+        num_strings = math.ceil(capacity * 1000 / (batt_Qfull * batt_Vnom_default * num_series))
         computed_voltage = batt_Vnom_default * num_series
         computed_capacity = batt_Qfull * computed_voltage * num_strings * 0.001
         max_rate = desired_power / desired_capacity