If a node goes offline and doesn't post any data on a given day, the datum stored count for that node will not be populated in the solaragg.aud_acc_datum_daily table, which can result in under-charging for that node.

Create a periodic job that runs several times a day and looks for nodes that have datum stored but no associated record in solaragg.aud_acc_datum_daily, and then adds a row to the solaragg.aud_datum_daily_stale table so a record gets populated for it.