Page 18 - Annual Report 2023

100
90
80
70
Percentage (%)
60
50
40
30
20
10
0
Gas Turbin Combine Cycle Hydroelectric Steam Nuclear

chnologies in the Intended Fiscal Year
14 Power Market Annual Report 1401
2.
2. Total Energy Traded in Spot Market
As stated before, Some some portion of the total generated electricity is traded
out of the spot market, (and via bilateral contracts and within the energy
As stated before, some portion of the total generated electricity is traded out of the spot market,
exchange). Therefore, the amount of energy trade via the spot market is lower
(via bilateral contracts and within the energy exchange). Annual purchased energy through the
than the total generation. Annual purchased energy through the spot market, was
307,295 GWh, which shows 11,165 (3.8%) GWh increase compared to the
spot market, was 307,295 GWh, which shows 11,165 (3.8%) GWh increase compared to the pre-
previous fiscal year. Figure 6 illustrates the volume of electricity trades
vious fiscal year. Figure 6 illustrates the volume of electricity generation on a seasonal basis. As
generation in on a seasonal basis. As is seen, it represents a similar trend with
is seen, it represents a similar trend with what is illustrated in figure 9.
what is illustrated in figure 9.
100,000
90,000
80,000
70,000
60,000
GWh 50,000
40,000

30,000
20,000
10,000
‐
Spring Summer Fall Winter

Figure 9: Total Spot Market Energy Trades in the Intended Fiscal Year
Figure 9: Total Spot Market Energy Trades in the Intended Fiscal Year
3. Total payment to sellers
3. Total Payment to Sellers 11
The main revenue streams of the power plants are reported seasonally in figure
The main revenue streams of the power plants are reported seasonally in figure 10. The revenue
10. The revenue streams consist of the energy payment, capacity payment,
streams consist of the energy payment, capacity payment, ancillary services and the transmission
ancillary services and the transmission usage cost. The highest total revenue is
usage cost. The highest total revenue is observed in the summer time, whereas the lowest is re-
observed in the summer time, whereas the lowest is reported in the winter. The
ported in the winter. The energy payment and subsequently the capacity payment have contrib-
energy payment and subsequently the capacity payment have contributed the
uted the largest share in the total power plants’ revenue.
largest share in the total power plants’ revenue.
120000

100000

80000
Rials 60000
Billion

40000

20000

0
Spring Summer Fall Winter
Transmission Usage Cost 81 164 63 42
Ancillary Services 2286 1981 2011 1795
Energy Payment 62792 82082 59669 48354
Capacity Payment 12091 29415 10188 6614

Figure 10: Total Payment to Sellers in the Spot Market

4. Ancillary Services
The ancillary services payment categorized by the service type (namely:
frequency control, reactive power and black start) is illustrated in the fFigure 11.
It is evident that the frequency control payment encompasses the largest share of
revenue among the other services, which is due in no small part to the policies
and instructions issued by the regulating the revenues inor of IREMA.

12