How it works
A planning estimate using 65,000 Energy per transfer. Actual usage depends on the recipient and contract state.
Quick answer
TRON uses Bandwidth for transaction bytes and Energy for smart-contract computation. USDT TRC-20 transfers are contract calls, so both resources can affect the result and final cost.
Primary sources
Protocol explanations are based on official TRON developer documentation. Live values should always be read from the network.