

24 input parameters have been identified as critical to the modelling process for the IRP. Each of these Parameters has an associated Fact Sheet, which describes to the stakeholder the nature, impact, value, ranges of values and other pertinent information on the parameter and its importance to the final IRP. From the first stage of consultation the following values for these parameters have been set. These values will then be used in the modelling process.
| No | ID | Parameter | Owner | |
| Demand Parameters | ||||
| 1 | C1 | |
CSIR | |
| 2 | C2 | |
System Operator (SO) Forecasting Department | |
| 3 | D1 | |
System Operator (SO) Forecasting Department | |
| 4 | D2 | |
National Treasury | |
| 5 | D3,D4 | |
Department of Trade and Industry
National Treasury Department of Economic Development Department of Planning | |
| 6 | D5 | |
National Treasury | |
| 7 | D6,7,8 | |
Department of Energy | |
| 8 | D9 | |
Department of Energy
NERSA | |
| 9 | D10 | |
Department of Energy | |
| Supply Parameters | ||||
| 10 | S1 | |
NERSA | |
| 11 | S2 | |
Department of Energy with input from NERSA and System Operations Planning Department | |
| 12 | S3 | |
National Treasury
Department of Public Enterprises | |
| 13 | S4 | |
Department of Energy
Department of Environmental Affairs | |
| 14 | S5 | |
National Treasury | |
| 15 | S6 | |
Department of Energy | |
| 16 | S7 | |
Department of Energy | |
| 17 | S8 | |
Eskom: Regional Development | |
| 18 | S9 | |
Department of Energy with input from the SO Planning function
Department of Science and Technology | |
| 19 | S10 | |
Department of Energy | |
| 20 | S11 | |
System Operator, Energy Planning | |
| Externalities | ||||
| 21 | Ex1 | |
Department of Environmental Affairs | |
| 22 | Ex2 | |
Department of Environmental Affairs
National Treasury | |
| 23 | Ex3 | |
Department of Environmental Affairs
Department of Energy | |
| 24 | Ex4 | |
The Electricity Distribution sector, with direct influence from the Electricity Regulator (via tariffs) | |