Average utility scale ESS price per 300MW in South Africa

Why is Eskom's electricity demand declining compared to 2023?

Demand for electricity continues to trend down, peak demand is 1% lower for this time of the year compared to the peak in 2023 due to rapid growth of the private sector embedded generation. ➢ Eskom fleet installed capacity remained unchanged in 2024 compared to 2023, energy generated from coal is relatively higher due to improved EAF.

Will NERSA increase Eskom's electricity tariffs?

Eskom’s aggregated tariffs increased by 190% since 2014, which is much higher than the average annual inflation rate of 5.2% over the same period. Electricity prices are already above utility-scale solar PV LCOE of R/kWh 0.5, the proposed NERSA tariff increase of 12.74% pushes the average tariff to c/kWh 195.93.

Why did Eskom's electricity tariff increase in 2023?

This iteration also examined national average electricity tariff increases and compared it to the tariff in other countries. Eskom's annual average EAF gradually increased to 60%, compared to an average of 55% in 2023, driven by an improved unplanned plant failure rate and relatively higher planned maintenance undertaken in 2024.

Why do ssegs save energy in South Africa?

In South Africa, electricity losses in distribution networks typically ranges from 8 to 11%, with a further 3% of energy being lost through high-voltage transmission . Therefore, by virtue of their location, SSEGs avoid these network losses adding value to each unit of energy generated . 1.2.2.

What is the difference between SseG and utility-scale solar PV?

However, the upfront capital cost of utility-scale solar PV is lower (due to economies of scale) and usually has a higher capacity factor (due to optimum location and orientation, and the use of trackers) when compared to SSEG.

Does residential rooftop SseG cost more than utility-scale PV?

At the point of 20% penetration, the cumulative capacity is 2.3GW, and the system cost of residential SSEG with load shifting is slightly lower than utility-scale PV. Figure 5 presents a waterfall graph of this point to show the difference in the system cost impact of a system with 2.3 GW residential rooftop SSEG vs 2.3 GW of utility scale PV.