If you need energy, there are three ways to obtain it.

Method 1: Burning TRX
If there is not enough energy in your account, TRX will automatically be burned during the transfer to cover the necessary bandwidth and energy costs. However, compared to using energy, burning TRX is a less favorable option.

Method 2: Freezing TRX
Go to the main assets page at https://tronscan.org/, select "Energy/Bandwidth" to access the Tron resource management interface. Choose the type of resource you want to obtain and enter the amount of TRX to freeze. The energy obtained is calculated using the formula: frozen TRX / total frozen TRX in the network * total energy limit. Frozen TRX can be unfrozen and returned after 14 days. This method is suitable if you have a lot of spare TRX.

Method 3: Renting Energy
You can save on fees by renting energy through services. Renting energy does not require freezing a large amount of TRX or burning it, and it allows you to save at least 80% on fees. For example, renting 130,400 energy will cost 9.13 TRX, whereas burning TRX would cost around 28 TRX. Renting energy allows you to save about 67%, or 18.87 TRX. This method is recommended!

Great! Now we’ve learned how to save on transaction fees when transferring USDT TRC20 on the TRON blockchain! You can explore more interesting materials in the "How It Works?" section.