Page 17 - Annual Report 2023

100
90
80
70
Percentage (%)
60
50
40
30
electricity generation (50% of the total) and then steam and gas turbines possess
20
the second rank and contributed approximately 23% and 18% of the total
10
generated electricity. Hydroelectric technology however has a small contribution
0
(about 4%), which has been reduced by almost half compared to the last year.
Gas Turbin Combine Cycle Hydroelectric Steam Nuclear chart, combined-cycle contributed accounts for the highest percentage of

Commented [IR4]: ﻪﻫﺎﺑﺗﺷﺍ یﺩﻧﺑ ﻪﻠﻣﺟ
Figure 8: Plant Factor of Different Technologies in the Intended Fiscal Year
). It should be noted that the

Power Market Annual Report 1401 17
2. Total Energy Traded in Spot Market Power Market Annual Report 1401 13
2. Total Energy Traded in Spot Market Nuclear, 2%
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, Hydroelectric, 4% Other, 3%
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. Steam, 23%
what is illustrated in figure 9.
Combine Cycle,
100,000 50%
90,000
Gas Turbine, 18%
80,000
70,000
60,000
GWh 50,000
40,000
Figure 7: Technology-Based Portfolio of the Electricity Generation in 2021-2022 Fiscal Year
30,000
20,000 Figure 8 shows the Plant Factor categorized by each energy conversion
1
10,000 1
technology. Due to its inflexible nature, the nuclear power plant is ranked first
Figure 8 shows the Plant Factor categorized by each energy conversion technology. Due to its
2
‐ and presents the highest plant factor among other technologies .
Spring Summer Fall Winter inflexible nature, the nuclear power plant is ranked first and presents the highest plant factor
among other technologies .
2
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 100
10. The revenue streams consist of the energy payment, capacity payment,
streams consist of the energy payment, capacity payment, ancillary services and the transmission 90
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- 80
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- 70
energy payment and subsequently the capacity payment have contributed the
Percentage (%)
60
largest share in the total power plants’ revenue.
uted the largest share in the total power plants’ revenue. 1 2 This obtained by dividing the amount of generated energy to the amount of available capacity.
In case of hydro power plants, the plant factor represents the ratio of the generated energy to the stored energy,
50
and not to the nominal power.
120000
40
100000 30
10
80000 20
Bilion Rials 60000 10
0
40000 Gas Turbin Combine Cycle Hydroelectric Steam Nuclear

20000 Figure 8: Plant Factor of Different Technologies in the Intended Fiscal Year
0
Spring Summer Fall Winter 2. Total Energy Traded in Spot Market
Transmission Usage Cost 81 164 63 42 1. This obtained by dividing the amount of generated energy to the amount of available capacity.
2. In case of hydro power plants, the plant factor represents the ratio of the generated energy to the stored energy, and
Ancillary Services 2286 1981 2011 1795 As stated before, Some some portion of the total generated electricity is traded
not to the nominal power.
Energy Payment 62792 82082 59669 48354 out of the spot market, (and via bilateral contracts and within the energy
Capacity Payment 12091 29415 10188 6614 exchange). Therefore, the amount of energy trade via the spot market is lower

Figure 10: Total Payment to Sellers in the Spot Market 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
4. Ancillary Services previous fiscal year. Figure 6 illustrates the volume of electricity trades
The ancillary services payment categorized by the service type (namely: generation in on a seasonal basis. As is seen, it represents a similar trend with
frequency control, reactive power and black start) is illustrated in the fFigure 11. what is illustrated in figure 9.
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 100,000
and instructions issued by the regulating the revenues inor of IREMA. 90,000

80,000
70,000

60,000
GWh 50,000
40,000

30,000
12 20,000

10,000
‐
Spring Summer Fall Winter

11