> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tronrental.com/llms.txt
> Use this file to discover all available pages before exploring further.

# TRON Energy Explained

> Understanding TRON energy and why renting saves money

## What is TRON Energy?

Energy is a resource on the TRON blockchain required to execute smart contracts. Every TRC-20 token transfer (like USDT) consumes energy.

### Energy consumption for USDT transfers

| Scenario                         | Energy needed                  |
| -------------------------------- | ------------------------------ |
| Recipient **has** USDT           | **\~65,000** (exact: 64,285)   |
| Recipient **does not have** USDT | **\~131,000** (exact: 130,285) |

The difference is due to storage slot creation — sending USDT to a new holder requires creating a new entry in the token contract.

### Without energy: TRX is burned

If you don't have energy, the network burns TRX from your account to cover the cost:

```
64,285 energy × 100 SUN/energy = 6,428,500 SUN = 6.43 TRX
```

At current rates, that's approximately **\$1.50 per USDT transfer**.

### With rented energy: 60-80% savings

Renting energy costs approximately **2.5-3.0 TRX per transfer** — saving you 50-60% compared to burning.

### How renting works

Energy is provided through **resource delegation** — a TRON network feature where one account temporarily shares its staked resources with another. The energy appears on the target address and is consumed during the next transaction.

<Tip>
  Use the [Energy Calculator](https://tronrental.com/energy-calculator) to check if a recipient address needs 65K or 131K energy.
</Tip>