Changed the aggregation of each PowerTransformer to use a virtual UsagePoint with a connectionCategory of LV_AGGREGATION rather than aggregating
directly against the PowerTransformer. This requires the removal and reprocessing of the entire load backlog (see note).
If you do not want to reprocess the entire backlog you can manually remove (or mark as un-cached) each of the cached readings from each days' load database,
but there are no tools or instructions on how to do this.