The investment portfolio target ranges are updated and discussed by
the board on an annual basis and were revised in December 2007.
The approved generation energy mix is based on the current
strategic drivers, the integrated strategic electricity plan (ISEP),
and the results of portfolio modelling. The key assumptions and
sensitivities under which these portfolios will change relate to
the demand forecast and the fuel cost of the different baseload
technologies. Should demand not grow at 4%, significantly less
capacity will be required. Changes in any key assumptions will
lead to a change in the portfolio targets.
Strategic drivers such as climate change mitigation, diversification
and shareholder aspirations must be balanced and traded
off against purely financial considerations. Eskom also faces
environmental challenges and primary energy constraints in the
face of global competitive markets and a shortage of skills.
Based on committed projects, new options and investment
strategy drivers, we recommend a portfolio that moves away
from the least-cost option to incorporate a more “clean” and
diversified portfolio that still reflects a reasonable “value at risk”
and includes replacing existing coal-fired generation with clean
coal technologies.
We are ensuring that not only are we complying with South
African environmental, social and legal requirements, but also
the Equator Principles, IFC1 performance standards and taking
into account the IFC Environmental Health and Safety (EHS)
guidelines.
 |
|
Click here for the strategic drivers
taken into account when developing the portfolio. |
| The following portfolio ranges have been approved: |
|
|
| Generation mix |
|
Target ranges |
| Coal-fired generation |
|
<70% |
| Combined-cycle gas turbine |
|
Only use for peak supply when needed |
| Low carbon-emitting base load (such as nuclear and hydro) |
|
17% – 28% |
| Renewable energy |
|
>2% |
| Imports |
|
2% – 15% |
| Open-cycle gas turbine |
|
Only use for peak supply when needed |
| Pumped storage |
|
4% – 10% |
|