The error file says:
** Severe ** Invalid Electrical Storage Object Name =
** ~~~ ** Entered in ElectricLoadCenter:Distribution = ELECTRIC LOAD
** Severe ** Electrical storage object was not found
** Fatal ** Errors found processing input for electric load center.
It would appear you need an Electrical Storage Object Name:
A8; \field Electrical Storage Object Name
\type object-list
\object-list ElecStorageList
and you don't have one.