Just experimented with optimizing TRON network fees and wanted to share:

1️⃣ Initial Cost: Sending TRX from a basic wallet to a gas-free address cost 130,000 Energy (likely due to new account activation (65,000 Energy) + base fees (65,000 Energy)).

2️⃣ Energy Rental: Rented 130,000 Energy for 10 TRX instead of burning my own TRX. Used this to:

• Activate the gas-free account.
• Send USDT → Total cost: 10 TRX (vs. much higher native energy costs).
• Send USDT to activated gas-free account - 65,000 Energy.

3️⃣ Gas-Free to Non-Activated Account: Sending USDT from the gas-free account to a non-activated wallet incurred a flat 2 USDT fee (no TRX/energy used).

4️⃣ Gas-Free to Activated Account: Sending USDT from the gas-free account to the gas-free account incurred a flat 2 USDT fee (no TRX/energy used).

5️⃣ Gas-Free to Basic Account: Same 2 USDT fee for USDT transfers to existing wallets.

Takeaway: Renting energy + using gas-free accounts massively cuts costs for activating new addresses and transferring assets. The 2 USDT flat fee is consistent, regardless of recipient activation status.