TRON On-Chain Gas Saving Guide

On August 20, JustLend DAO, the core DeFi lending platform in the TRON ecosystem, once again announced the launch of a brand-new TRON energy pay-as-you-go service — Buy Energy. According to official estimates, compared with directly burning TRX to obtain on-chain resources, users can save up to approximately 64% in transaction fees with this product.

With this, the newly launched Buy Energy, together with the already steadily operating Energy Rental and GasFree "gas-free" transfer solution, forms a synergy and together constitutes a Gas cost optimization tool matrix covering a variety of demand scenarios across the TRON ecosystem.

From the perspective of product positioning, Energy Rental and Buy Energy provide users with a low-threshold, highly flexible path to obtain energy: users do not need to stake TRX to obtain Energy, nor do they need to burn TRX to obtain it. Instead, they can choose to rent by term or purchase energy directly according to their actual needs. The energy obtained can be directly used to offset resource consumption related to on-chain operations on TRON, offering significant advantages in both operational freedom and usage cost. The GasFree "gas-free" transfer solution, meanwhile, provides a breakthrough payment paradigm for on-chain transfer scenarios, supporting users to directly pay Gas fees with the transfer target tokens such as USDT and USDD. This breaks the traditional limitation that on-chain transfers must hold the native token TRX, making the circulation of stablecoins smoother and more unobstructed.

The three Gas optimization tools cover almost all common Gas and Energy demand scenarios in the TRON ecosystem. For example, in stablecoin USDT or USDD transfer scenarios, when the wallet lacks TRX, users can choose GasFree "gas-free" transfers and directly use the transfer token to pay Gas fees; when facing temporary, short-term batch address operations or high-frequency small-amount interactions, users can choose Buy Energy for immediate use with flexibility and efficiency; for continuous smart contract calls and DeFi interactions, Energy Rental is the priority for better cost and greater sustainability. The three major Gas optimization solutions complement each other, truly achieving on-demand selection, controllable costs, and convenient operation, precisely adapting to the on-chain cost-reduction needs of different users and different scenarios, and helping every on-chain transaction achieve higher efficiency and lower cost.

JustLend DAO's "Three Great Tools" Help Reduce Fees with One Click

In the past, users interacting on the TRON chain often faced the following situations: stablecoin transfer fees such as USDT remained high due to rising TRX prices; no TRX was reserved in the wallet, making it impossible to pay Gas; in DeFi scenarios such as DEX swaps, adding LP liquidity, and participating in lending, as well as when calling various smart contract DApps, users frequently encountered the embarrassment of insufficient energy; and if they chose to directly burn TRX to replenish energy, the cost was clearly too high, among other issues. These pain points not only raised the threshold for on-chain operations, but also directly affected users' trading efficiency and cost experience.

Now, with the three Gas cost-reduction tools launched by JustLend DAO — Energy Rental, GasFree gas-free transfers, and Buy Energy — users can solve core problems such as "high fees, high barriers to obtaining energy, and inability to trade without native tokens" in one stop. Regardless of the on-chain scenario, users can achieve precise cost reduction, improved quality, and increased efficiency while ensuring trading efficiency.

To deeply understand this TRON-specific Gas optimization solution, we first need to clarify its underlying logic — TRON's unique "Bandwidth + Energy" dual-resource Gas system. This design is precisely the core technical feature that distinguishes TRON from other public chains, and it is also the fundamental premise that enables Gas optimization tools to be effective:

• Bandwidth — basic resource with a free quota: Bandwidth is mainly used to measure the storage and network resources occupied by transactions, and all on-chain operations consume bandwidth. Basic on-chain operations such as ordinary TRX transfers, voting, staking, and unstaking consume only bandwidth resources. Each account can obtain 600 units of bandwidth for free every day. After the free quota is exhausted, users can replenish resources by staking or burning TRX. At present, the cost of burning TRX per unit of bandwidth is 0.001 TRX.
• Energy — advanced resource for smart contracts with no free quota: Energy represents the processor computing resources consumed by running smart contracts. Scenarios involving smart contract interactions, such as DeFi interactions, NFT minting, and TRC-20 token issuance and transfers, all consume energy. Unlike bandwidth, energy has no daily free quota and can likewise only be obtained by staking or burning TRX; consumption varies with contract complexity, and the actual cost is also affected by fluctuations in the TRX price.

To reduce users' on-chain costs, TRON officials have repeatedly lowered the energy burn cost. In August 2025, the TRX burn price per unit of energy was directly reduced from 0.0021 TRX to 0.0001 TRX, a decrease of more than 50%. However, affected by the upward trend in TRX price, the actual cost of directly burning TRX to obtain energy remains relatively high.

It is precisely based on deep insight into these pain points that JustLend DAO, as the core DeFi lending platform in the TRON ecosystem, has built on the steady operation of its core business to provide users with a multi-dimensional cost-reduction solution through the three major Gas optimization tools: Energy Rental, GasFree gas-free transfers, and Buy Energy:

① Energy Rental — rent on demand with flexible terms: This service supports users in flexibly renting energy by the hour or by the day without staking or burning TRX. Rental periods are flexible (minimum 1 hour, maximum 30 days), and it supports renting on behalf of other addresses. Rental fees are settled based on rental duration and consumption, and the unused energy portion can be refunded. It is suitable for users with continuous Energy needs and can be used for medium- and long-term smart contract calls and DeFi interactions. 

② Buy Energy — buy and use immediately, suitable for short-term batch operations. This feature allows users to purchase the required energy in one go, is valid for a short period (automatically reclaimed upon expiration after 1 hour), is simple to operate, and requires no rental refund process. A single order can inject energy into up to 50 addresses in batches and supports quick ordering based on the number of USDT transfers. According to estimates, it can save about 64% in costs compared with directly burning TRX, especially for short-term, high-frequency transfer needs and temporary scenarios such as batch address operations. 

③ GasFree (gas-free transfer solution) — transfer tokens directly pay Gas fees, with no need to hold native tokens. It innovatively breaks the traditional logic that "Gas must be paid with native tokens" and supports directly using the transfer token to offset fees. At present, GasFree supports the two major assets USDT and USDD, and will expand to more assets in the future.

These three Gas optimization tools are not substitutes for one another, but rather form a complementary cost-optimization gradient, providing differentiated solutions for different on-chain scenarios: for example, stablecoin (USDT/USDD) transfers should prioritize GasFree; when involving smart contract interactions such as TRC-20 transfers, DeFi, NFTs, and DApps, users can flexibly choose between Buy Energy and Energy Rental as needed — choose Buy Energy for short-term batch operations, and Energy Rental for medium- and long-term continuous interactions. Together, the three provide users with multiple adaptable options, allowing them to easily achieve a smooth experience with controllable costs and convenient operation in any scenario.

Detailed Feature Explanation and Operation Guide for the Three Major Gas Optimization Tools

1. Energy Rental: rent and use at any time, flexible rental periods, unused portion refundable

Energy Rental is the first on-chain energy solution launched by JustLend DAO in 2023. It supports users in flexibly renting energy by the hour or by the day without staking or burning TRX. Rental periods are flexible and controllable, with selectable durations ranging from a minimum of 1 hour to a maximum of 30 days, and it also supports renting energy on behalf of any address. Rental fees are settled according to the actual rental duration and real energy consumption, and the rent corresponding to unused energy can be refunded along the original path, minimizing users' on-chain operation costs at the mechanism level.

Compared with the two traditional ways of obtaining energy — staking TRX and directly burning TRX — JustLend DAO Energy Rental has disruptive advantages in capital efficiency and usage flexibility: the traditional staking model requires locking a large amount of TRX assets, with an unlocking period of up to 14 days, resulting in high capital occupation costs and severely limited liquidity; directly burning TRX to obtain energy not only has a high cost per transaction, but the burned TRX also cannot be recovered, resulting in irreversible asset loss.

Energy Rental avoids the core drawbacks of the above two solutions at the underlying logic level and truly implements the lightweight usage concept of "rent as much as you use." With the core characteristics of "rent and use at any time, flexible rental periods," it delivers a user experience with no need to lock TRX funds for the long term and no asset burn loss. Users can independently choose a rental period from 1 hour to 30 days according to their own business needs, precisely matching diversified on-chain needs: it is suitable not only for temporary and scattered on-chain operation scenarios such as single NFT minting, Meme coin trading, and short-term DeFi interactions, but also, through long-period rentals of up to 30 days, can provide stable and continuous energy supply for long-term arbitrage users, project developers, and others.

In addition, Energy Rental also has the core characteristics of "transparent billing and refundable unused balance": the entire rental process is automatically executed by on-chain smart contracts, and the billing rules are fully public, verifiable, clear, and transparent. Users can proactively terminate the rental service early at any time, and the system will ultimately settle fees strictly according to the actual rental duration and real energy consumption, with the rent corresponding to the unused portion fully refunded along the original path, with no hidden losses or hidden charges throughout the process.

According to official website data on August 27, JustLend DAO's Energy Rental service outputs nearly 48 billion units of energy per day on average, with a single-day rental peak scale exceeding 16 billion units and cumulative users served exceeding 82,300. It is currently the official energy rental channel with the largest user base and the highest recognition in the TRON network.

In terms of costs, according to the latest official data (August 27), the JustLend DAO Energy Rental price is only 40 sun/day, meaning renting 100,000 units of energy costs only 4.03 TRX (the energy price will change with utilization). This scale of energy is equivalent to the output obtained by staking about 10,450 TRX, enough to cover 2 contract transactions; if directly burning TRX, it would require 10 TRX. By comparison, under the same energy consumption, rental costs can be directly reduced by nearly 60%.

In a real USDT transfer, using Energy Rental to offset Gas costs is extremely low. During the same period, the Gas cost required to transfer USDT by directly burning TRX was about $2.092, while after using the rental energy offset mechanism, the Gas cost was only $0.115, directly saving more than 94.5% on a single transaction.

Energy Rental User Guide: complete in three steps

The Energy Rental operation process is concise and efficient, requiring only three steps from start to finish. At present, the service supports access to multiple mainstream wallets, including TronLink (the wallet officially recommended by TRON), OKX, Binance, TokenPocket, WalletConnect, Ledger, and others, adapting to the on-chain operation scenarios of the vast majority of users.

Step 1: Fill in rental data

On the rental page, set in sequence the amount of energy to rent (minimum rental of 100,000 units of energy), the rental duration (minimum 1 hour, maximum 30 days), and the receiving address (the system automatically fills in the currently connected wallet address by default; if renting on behalf of another address, select "Other Address" and enter the corresponding address).

Step 2: Pay the advance payment and submit the order

Energy Rental adopts an "advance payment model." The fee for each order consists of three parts: the energy fee (the core rental cost), the deposit (fully refundable after the rental ends normally), and the liquidation fee (charged if the rental is not proactively terminated after the rental period expires).

When submitting a rental order, the system automatically calculates the total fee, and all fee details are transparent in real time with no hidden costs. After confirming there are no errors, click "Submit" and complete payment in the wallet. The order takes effect immediately, and the energy is then allocated to the specified address.

Step 3: Order management and deposit refund

During the rental period, users can manage orders at any time on the "Energy Rental" page. They can also end the rental early (End), extend the rental period or add energy (Renew), and view remaining energy and rental period details.

It is worth noting that ending an order early allows settlement based on actual consumption, with the remaining rent refunded along the original path; if the order ends normally when the rental period expires, the system will automatically refund the full deposit.

Reminder: It is recommended to reasonably choose the rental duration and energy amount according to the actual frequency and usage time period of your on-chain operations, return idle energy in a timely manner, effectively avoid unnecessary liquidation fees, and maximize savings on on-chain usage costs.

2. Buy Energy: buy and use immediately, valid for 1 hour, saving about 64% compared with directly burning TRX

Buy Energy is a brand-new TRON energy service feature launched by JustLend DAO recently (August 20, 2026), focusing on "buy and use immediately, no staking, no waiting," further lowering the threshold for obtaining energy.

Consistent with Energy Rental, this service also supports users in purchasing short-term energy (valid for 1 hour) on demand at a lower cost without staking or burning TRX, to offset on-chain fees for TRC-20 asset transfers such as USDT or smart contract execution. Compared with directly burning TRX, this service can reduce on-chain transaction costs by about 64%, making it a veritable "short-term energy gas station" for on-chain interactions.

It should be noted that the energy obtained through Buy Energy is valid for 1 hour (timed from the completion of purchase), after which it is automatically reclaimed by the system. Therefore, this service is more suitable for short-term, batch needs with a clear number of transfers. It