Delegate Energy to a public TRON address instead of burning TRX from the sending wallet. No private keys required.
TRC20 transfers such as USDT consume Energy. If the account does not have enough, the network burns TRX. Renting Energy delegates it to the destination address so the transfer can complete with a smaller burn.
Use the Energy shop to estimate how much Energy a USDT transfer needs, then pay and receive delegation on the same order.
Burning TRX pays the network directly. Renting Energy is a separate quote for delegated Energy on a public address. Compare both with a live quote in the Energy shop.
A USDT (TRC20) transfer becomes expensive when the account lacks Energy. Renting Energy for the receiver is the usual way to keep the fee predictable.