Physical border flow measured by ONS with Argentina and Uruguay, month by month. Itaipu is shown separately: it is not an exchange.
2,982.5 GWh
Brazil exported (AR + UY), 12 months
193.6 GWh
Brazil imported (AR + UY), 12 months
10,181.3 GWh
Itaipu 50 Hz → Brazil, last 12 months
Last 6 months
Month
Net Argentina (GWh)
Net Uruguay (GWh)
Exported (GWh)
Imported (GWh)
Itaipu 50 Hz → BR (separate)
2026-09
65.9
0.0
82.0
16.1
1,309.2
2026-08
465.6
0.0
468.2
2.6
1,002.7
2026-07
608.2
73.3
683.8
2.2
368.9
2026-06
714.8
125.3
840.1
0.0
685.0
2026-05
543.6
10.4
554.0
0.0
813.4
2026-04
66.1
0.0
85.4
19.3
505.2
Show all 24 months
Month
Net Argentina (GWh)
Net Uruguay (GWh)
Exported (GWh)
Imported (GWh)
Itaipu 50 Hz → BR (separate)
2026-09
65.9
0.0
82.0
16.1
1,309.2
2026-08
465.6
0.0
468.2
2.6
1,002.7
2026-07
608.2
73.3
683.8
2.2
368.9
2026-06
714.8
125.3
840.1
0.0
685.0
2026-05
543.6
10.4
554.0
0.0
813.4
2026-04
66.1
0.0
85.4
19.3
505.2
2026-03
-51.0
0.6
19.7
70.1
468.1
2026-02
111.3
-1.1
112.0
1.8
529.0
2026-01
59.4
0.0
108.8
49.4
887.4
2025-12
25.6
2.8
28.5
0.0
1,392.8
2025-11
-5.4
-5.6
0.0
11.0
1,288.2
2025-10
-21.2
0.0
0.0
21.2
931.6
2025-09
32.7
-1.6
36.1
5.0
650.0
2025-08
339.8
1.4
341.2
0.0
702.3
2025-07
1,075.6
65.4
1,141.1
0.0
810.5
2025-06
601.0
14.2
615.2
0.0
1,074.0
2025-05
-9.3
21.7
25.8
13.5
817.3
2025-04
-53.6
5.3
5.3
53.6
971.5
2025-03
113.6
2.2
115.8
0.0
1,175.9
2025-02
469.7
74.4
544.2
0.0
1,506.0
2025-01
261.3
29.9
297.7
6.5
1,707.8
2024-12
-14.0
-3.3
0.0
17.3
1,989.2
2024-11
44.8
-27.5
109.6
92.3
1,484.7
2024-10
-118.2
-82.2
2.7
203.0
1,277.3
Itaipu is kept out of the totals: it is generation of the binational plant, published by ONS in its own dataset, not an exchange with Paraguay.
Venezuela: ONS publishes no flow. The CI BOA VISTA point (Roraima) appears only in the by-modality dataset, from 2024-02-21 to 2025-09-15, always zero.