Official ANEEL data

TUST (transmission tariff) by busbar — no digging through ANEEL spreadsheets

Look up the Tarifa de Uso do Sistema de Transmissão (TUST) for generation and load by substation, with the tariff cycle and source act. Estimate your EUST from contracted MUST.

1.798 busbars · latest available cycle: 2025/2026 (REH nº 3.482/2025)

Busbars (generation, 2025/2026)

916

Avg. TUST (generation)

R$ 8,22/kW.month

Lowest TUST (generation)

R$ 5,06/kW.month

Highest TUST (generation)

R$ 18,49/kW.month

Sample busbars

ARARAQUARA440 kV

Generation R$ 8,00 /kW.month

ANGRA500 kV

Generation R$ 8,26 /kW.month

ADRIANOPOLIS345 kV

Generation R$ 7,55 /kW.month

TRES IRMAOS440 kV

Generation R$ 9,72 /kW.month

ACAILANDIA230 kV

Generation R$ 11,71 /kW.month

AGUA VERMELHA440 kV

Generation R$ 9,49 /kW.month

See all busbars (in Portuguese) →

How it works

Nodal: each busbar has its own TUST based on electrical location on the Rede Básica (basic transmission grid). Values in R$/kW.month.
Generation × Load: the tariff differs by segment; load has peak/off-peak components.
EUST: the monthly charge is MUST × TUST. Calculate on the busbar page (in Portuguese).

Understand TUST (in Portuguese) →

2026/2027 cycle

The current cycle was homologated by Dispatch No. 2.269/2026 (effective from 01/07/2026). Per-busbar annexes are being integrated from the official source. Meanwhile we show the latest cycle already available: 2025/2026.