Background: Impact profiles in the CET

Historically in the CET the impact profile is identified by the E3MeaElecEndUseShape field, which is one of the four fields that together identify the avoided cost data to be used in cost effectiveness calculations. The three other fields are IOU_AC_Territory (e.g. SCE), E3TargetSector (e.g. Residential), and E3ClimateZone (e.g. 12). Those four fields together are called the Avoided Cost Combo in CEDARS. CEDARS enforces that CET input must match an Avoided Cost Combo to calculate cost effectiveness.

To align with the prior CET standards, new load shape derived impact profile ID are used as the E3MeaElecEndUseShape field for CET runs. As with historical DEER load shapes, the impact profile ID (E3MeaElecEndUseShape)will be used together with the IOU_AC_Territory, E3TargetSector, and E3ClimateZone to map to the new avoided cost data produced from the new load shapes.