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Table 10 Multi-stage planning results in Case VI

From: Multi-stage expansion planning of energy storage integrated soft open points considering tie-line reconstruction

Result

Stage I

Stage II

Stage III

Stage IV

AC-DC converter (MVA)

Node 8

1.54

1.54

1.77

2.02

Node 19

0.51

0.51

2.09

2.13

Node 27

–

0.10

1.40

5.19

DC-DC converter (MW)

1.50

1.83

4.39

8.00

Storage battery (MWh)

4.38

5.19

16.77

45.16

ESOP investment cost (104RMB)

50.81

57.76

179.33

531.20

Total investment cost (104RMB)

155.52

172.06

323.74

768.72

Total cost (104RMB)

2709.54

2628.18

2267.60

1898.25