Models in This Section
Degradation Losses (AC Applied)
Time-dependent degradation applied at the AC level (first in the loss chain):- Linear AC: Continuous linear degradation applied to inverter AC output
- Stepped AC: Annual step-wise degradation applied to inverter AC output
- LeTID: Light and Elevated Temperature Induced Degradation (optional, calculated from original input power)
AC System Losses
Complete loss chain from degraded inverter output to grid:- Auxiliary Loads: DAS, cooling, and tracker motor power consumption
- MV Transformer: Array-level step-up transformer (quadratic loss model)
- AC Collection System: Medium-voltage network losses (quadratic or flat percentage)
- HV Transformers: High-voltage step-up transformers (quadratic loss model)
- Transmission Lines: I²R losses from line geometry and power flow
- Availability: Percentage reduction for downtime and curtailment
- Grid Limit: Clipping to LGIA/POI capacity constraint
Loss Sequence
Array Level:- AC Degradation (Linear AC or Stepped AC, if selected)
- LeTID losses (calculated from original input power, if enabled)
- Auxiliary loads (DAS, cooling, tracker motors)
- MV Transformer
- AC Collection System
- HV Transformers and Transmission Lines (user-defined order)
- Availability Loss
- Grid Limit (LGIA)