| Contingency | Difference in losses from System Healthy [MW] | Difference in losses based on System Healthy [MW] |
| System Health | ||
| Zeus-765400 trafo | 0 | 0% |
| Acacia-Koeberg 400 | 4 | 0% |
| Alpha-Beta 765 | 14 | 1% |
| Aurora-Juno 400 | 12 | 1% |
| Beta-765400 trafo | −2 | 0% |
| Beta-Hydra 400 | 1 | 0% |
| Beta-Perseus 765 | 4 | 0% |
| Beta-Persus 400 | 0 | 0% |
| Droёrivier-Proteus | 3 | 0% |
| Droёrivier-Kapa 400 | 0 | 0% |
| Gramma-Grassridge 765 | 85 | 6% |
| Gramma-Hydra 765 | 6 | 0% |
| Gramma-Kapa 765 | 3 | 0% |
| Gramma-765400 trafo | 83 | 6% |
| Hydra-Droёrivier 400-3 | 0 | 0% |
| Hydra-Kronos 400 | 14 | 1% |
| Kapa-765400 trafo | 0 | 0% |
| Kapa-Bacchus 400 | 0 | 0% |
| Kapa-Muldersvlei 400 | 0 | 0% |
| Kapa-Omega 765 | 2 | 0% |
| Zeus-Mercury 765 | 24 | 2% |
| Muldersvlei-Acacia 400 | 0 | 0% |
| Muldersvlei-Bacchus 400 | 0 | 0% |
| Omega-765400 trafo | 2 | 0% |
| Perseus-765400 trafo | −1 | 0% |
| Perseus-Gamma 765 | 11 | 1% |
| Perseus-Grootvlei 400 | 2 | 0% |
| Perseus-Hydra 400 | 1 | 0% |
| Perseus-Hydra 765 | 9 | 1% |
| Perseus-Mercury | 25 | 2% |