Every USDT transfer on TRON burns 7-8 TRX ($2.50) without energy. Staking enough TRX to cover it requires $25k+ locked up. TronEnergyRent lets you rent energy instead. One USDT transfer costs 2.9 TRX ($0.92) with rented energy, 60% cheaper. Pick amount and duration (1 hour to 30 days), pay in TRX, energy arrives in 1-10 seconds. REST API for developers. No KYC.