In the TRON network, the amount of resources an account receives depends on the proportion of its TRX staked relative to the total TRX staked across the entire network.

When a delegator delegates resources to a recipient, it essentially lends a portion of its own staked TRX to the recipient. In resource quota calculations, the system does not distinguish between the sources of TRX. TRX staked by the account itself and TRX delegated from other accounts are aggregated and treated uniformly as the weighting basis for resource allocation.

Based on this mechanism, unless otherwise specified, the term “staked amount” in this document refers to the total staked TRX of an account, including both self-staked TRX and TRX delegated from other accounts, without distinguishing their sources.

Resource Reclamation

When a Delegator initiates resource delegation, a certain amount of staked TRX is lent to the Recipient, granting them the corresponding resources usage right. When the Delegator cancels the resource delegation, the system not only reclaims the corresponding staked TRX, but also reclaims a proportional amount of the Recipient’s unrecovered resources.

Reclamation Logic for Unrecovered Resources

1. Calculation Formula

The system proportionally reclaims the Recipient's unrecovered resources based on the amount of TRX being undelegated according to the following formula:

Reclaimed unrecovered resources  
= (Canceled delegated TRX amount ÷ Recipient’s total staked TRX amount for that resource)  
× Recipient’s unrecovered resource amount

Note: The reclaimed unrecovered resources must not exceed the maximum resource capacity corresponding to the undelegated TRX amount, calculated in real time based on current network-wide staking.

• Canceled delegated TRX amount: The amount of staked TRX reclaimed in the cancel delegation transaction.
• Recipient's total staked TRX amount for that resource: The total staked TRX used by the recipient to obtain a specific resource (Energy or Bandwidth), including self-staked TRX (Stake 1.0 and Stake 2.0) and delegated TRX from others. This can be queried via the wallet/getaccount API.
• Recipient's unrecovered resource amount: The amount of resources that have already been consumed and are currently in the recovery period on the recipient’s account. This can be queried via wallet/getaccount or wallet/getaccountresource.

2. Account State Changes

After undelegation, the states of both accounts are changed as follows:

Delegator

Staked amount = Original staked amount + Canceled delegated TRX amount

Unrecovered resource amount = Original unrecovered resource amount + Reclaimed unrecovered resource amount

Recipient

Staked amount = Original staked amount - Canceled delegated TRX amount

Unrecovered resource amount = Original unrecovered resource amount - Reclaimed unrecovered resource amount

Note on Recovery: Resources recover linearly over a 24-hour period. If an account uses resources again or reclaims delegated resources during this period, the system performs a weighted merger of the existing recovery progress and the new recovery cycle. Consequently, the actual time remaining for resources to fully recover is usually less than 24 hours.

Example

Assume the current network resource conversion ratio is 1 TRX Staked = 0.2 Energy, and the total network staking amount remains unchanged. User X delegated 200 TRX worth of Energy to User Y. Before the delegation is canceled, the account states are:

When User X cancels the Energy delegation of 200 TRX to User Y:

Reclaimed unrecovered Energy amount = 200 / 500 * 50 = 20 Energy

After reclamation, the account states become: