On August 20, TRON's core DeFi lending platform JustLend DAO announced the launch of a new energy purchase service—Buy Energy. According to official estimates, compared to directly burning TRX to obtain on-chain resources, users can save up to about 64% on transaction fees with this product.

With the launch of the new Buy Energy service, it works in synergy with the previously stable Energy Rental and GasFree solutions to form a matrix of Gas cost optimization tools covering various demand scenarios within the TRON ecosystem.

From the product positioning perspective, Energy Rental and Buy Energy provide users with low barrier, high flexibility pathways to acquire energy: users do not need to pledge TRX to obtain Energy or burn TRX to acquire it; they can choose to rent or directly purchase energy based on their actual needs. The energy obtained can be used directly to offset resource consumption for operations related to the TRON chain, offering significant advantages in both operational freedom and usage costs. The GasFree solution enables on-chain transfer scenarios by allowing users to use tokens like USDT and USDD to directly cover Gas fees, breaking the traditional limitation that requires holding the native token TRX for on-chain transfers, making the circulation process of stablecoins smoother and more unobstructed.

The three Gas optimization tools almost cover the common different Gas and Energy demand scenarios in the TRON ecosystem. For example, in stablecoin USDT or USDD transfer scenarios where TRX is lacking in the wallet, users can opt for GasFree transfer without Gas and pay Gas fees directly with the transfer tokens; when facing temporary short-term bulk address operations or high-frequency small transactions, they can choose Buy Energy for immediate use, achieving flexibility and efficiency; for ongoing smart contract calls and DeFi interactions, Energy Rental is preferred for more optimal and sustainable costs. The three Gas optimization solutions complement each other, making it truly easy to choose based on demand, with controllable costs and convenient operations, precisely matching the cost reduction needs of different users and scenarios on the chain, helping every on-chain transaction achieve higher efficiency and lower costs.

Interpreting TRON's "Bandwidth + Energy" dual resource Gas mechanism, JustLend DAO's "three magic tools" facilitate one-click cost reduction

In the past, users interacting on the TRON chain often faced the following situations: high transfer fees for stablecoins like USDT soaring due to rising TRX prices; the inability to pay Gas due to a lack of TRX in the wallet; frequently encountering insufficient energy when exchanging on DEXs, adding LP liquidity, participating in lending, and calling various smart contract DApps; and if they chose to directly burn TRX to replenish energy, the costs were noticeably high. These pain points not only raised the on-chain operational threshold but also directly affected users' transaction efficiency and cost experience.

Now, with the three cost-reduction tools launched by JustLend DAO—Energy Rental, GasFree, and Buy Energy—users can address the core problems of "high transaction fees, high barriers to obtaining energy, and inability to trade without native tokens" in a one-stop shop. Regardless of the on-chain scenario, users can ensure transaction efficiency while achieving precise cost reduction and improved quality.

To deeply understand this TRON-exclusive Gas optimization solution, it is first necessary to clarify its underlying logic—the unique "Bandwidth + Energy" dual resource Gas system of TRON. This design is the core technical feature that distinguishes TRON from other public chains and is the fundamental premise for the Gas optimization tools to function:

• Bandwidth—basic resource with a free quota: Bandwidth is primarily used to measure storage and network resources consumed by transactions. All on-chain operations require bandwidth consumption. For basic on-chain operations like regular TRX transfers, voting, staking, and unlocking, only bandwidth resources are consumed. Each account can receive 600 units of free bandwidth daily; after exhausting the free quota, users can replenish their resources by staking or burning TRX. Currently, the cost of burning TRX for each unit of bandwidth is 0.001 TRX.
• Energy—advanced resource for smart contracts with no free quota: Energy represents the processor computing power resources consumed to run smart contracts. Scenarios involving DeFi interactions, NFT minting, TRC-20 token issuance, and transfers will consume energy. Unlike bandwidth, energy has no daily free quota and can similarly only be obtained by staking or burning TRX; the consumption amount varies with contract complexity, and the actual costs are also affected by TRX price fluctuations.

To reduce users’ on-chain costs, TRON officials have repeatedly lowered the cost of energy burning. In August 2025, the price of burning TRX for each unit of energy was directly cut from 0.0021 TRX to 0.0001 TRX, a reduction of over 50%. However, due to the rising TRX price, the actual cost of directly burning TRX to obtain energy remains high.

Based on a deep understanding of these pain points, as a core DeFi lending platform in the TRON ecosystem, JustLend DAO, on the foundation of stable core business operations, provides multi-dimensional cost-reduction solutions through three major Gas optimization tools:

① Energy Rental—rent on demand with flexible periods: This service allows users to flexibly rent energy by the hour or day without having to stake or burn TRX, with flexible rental terms (minimum 1 hour, maximum 30 days) and support for renting on behalf of other addresses. The rental fee is settled based on the actual rental duration and real energy consumption, and any unused energy can be refunded. It is suitable for users with ongoing Energy needs and can be used for medium- to long-term smart contract calls and DeFi interactions.

② Buy Energy—buy and use immediately, suitable for short-term bulk operations. This feature allows for a one-time purchase of the required energy, with a short validity (available for 1 hour before automatic recovery), simple operation, and no rental refund process. A single order can inject energy into up to 50 addresses at once and supports quick ordering based on the number of USDT transfers. Estimates indicate that compared to directly burning TRX, it can save about 64% in costs, especially in temporary scenarios requiring high-frequency transfers and bulk address operations.

③ GasFree (No Gas transfer solution)—transfer tokens directly pay for Gas without the need to hold native tokens. Innovatively breaking the traditional logic of “must use native tokens to pay Gas,” it supports direct use of transfer tokens to offset transaction fees. Currently, GasFree supports two major assets, USDT and USDD, with plans to expand to more assets in the future.

The three major Gas optimization tools are not substitutes for each other but form a complementary cost optimization gradient, providing differentiated solutions for different on-chain scenarios: prioritizing the use of GasFree for stablecoin (USDT/USDD) transfers; for TRC-20 transfers, DeFi interactions, NFTs, and DApp interactions, users can flexibly choose between Buy Energy and Energy Rental as needed—selecting Buy Energy for short-term bulk operations and Energy Rental for medium- to long-term ongoing interactions. The three work together to provide users with multiple adaptive options, ensuring that no matter the scenario, they can easily achieve controllable costs and convenient operations and a smooth experience.

A detailed explanation of the functionalities and operation guide for the three Gas optimization tools: “Energy Rental + Buy Energy + GasFree”

1. Energy Rental: Rent as needed, flexible rental term, with unused portions refundable

Energy Rental is the first on-chain energy solution launched by JustLend DAO in 2023, allowing users to flexibly rent Energy by the hour or day without staking or burning TRX. The rental term is flexible and controllable, with the duration ranging from a minimum of 1 hour to a maximum of 30 days, and it supports renting energy for any address. The rental fee is calculated based on actual rental duration and real energy consumption, and the unutilized energy fee can be refunded, significantly reducing users' on-chain operational costs from a mechanism perspective.

Compared to the traditional methods of acquiring energy by staking TRX or directly burning TRX, JustLend DAO’s Energy Rental offers disruptive advantages in fund 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, incurs high capital occupancy costs, and severely limits liquidity; obtaining energy by directly burning TRX not only incurs high costs for each transaction but also results in irreversible asset losses since the TRX destroyed cannot be restored.

Energy Rental avoids the core drawbacks of the above two solutions at the underlying logic, implementing the lightweight use concept of “rent only what you need, pay only for what you use”. With the core feature of “rent as needed, flexible rental terms,” users can experience energy usage without long-term TRX fund locking or asset destruction losses. Users can choose rental periods ranging from 1 hour to 30 days based on their business needs, precisely matching diverse on-chain demands: suitable for temporary, scattered on-chain operations like single NFT minting, meme coin trading, short-term DeFi interactions, and also providing stable energy supply through the longest rental period of 30 days for long-term arbitrage users and project developers.

Moreover, Energy Rental has the core characteristics of "transparent billing and refundable unused portions": the entire rental process is automatically executed by on-chain smart contracts, and the billing rules are fully public and clear. Users can actively terminate the rental service in advance, and the system will strictly calculate fees according to the actual rental duration and real energy consumption, refunding the rental fee for any unused energy fully. The entire process incurs no hidden losses or charges.

According to data from the official website on August 27, JustLend DAO’s Energy Rental service produces nearly 48 billion units of energy daily, with a peak rental scale exceeding 16 billion units in a single day, and has served over 82,300 users, making it the largest officially recognized energy rental channel on the TRON network.

In terms of costs, according to the latest official data (August 27), JustLend DAO’s Energy Rental price is only 40 sun per day, meaning that renting 100,000 units of energy only requires 4.03 TRX (the price of energy changes with utilization rates). This amount of energy is equivalent to the output obtained by staking approximately 10,450 TRX, sufficient to cover two contract transactions; whereas burning TRX directly would consume 10 TRX. In comparison, under the same energy consumption, rental costs can be reduced by nearly 60%.

From the perspective of real USDT transfers, using Energy Rental to offset Gas costs is extremely low. During the same period, the Gas cost for a USDT transfer with direct TRX burning is approximately $2.092, while under the Energy Rental mechanism, the Gas only costs $0.115, saving over 94.5% on a single transaction.

Energy Rental User Guide: Complete in three steps

The Energy Rental operation process is simple and efficient, requiring only three steps to complete. Currently, the service supports multiple mainstream wallet integrations, including TronLink (the officially recommended wallet by TRON), OKX, Binance, TokenPocket, WalletConnect, Ledger, etc., suitable for the vast majority of users’ on-chain operation scenarios.

Step One: Fill in Rental Data

On the rental page, sequentially set the required amount of energy to rent (minimum starting at 100,000 units), 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 for another address, select "Other Address" to enter the corresponding address).

Step Two: Pay Deposit and Submit Order

The energy rental employs a "deposit mode," where the cost of each order consists of three parts: energy fee (core rental cost), deposit (fully refundable after normal rental completion), and liquidation fee (this fee will be incurred if rental is not actively terminated after the rental period).

When submitting a rental order, the system will automatically calculate the total cost, with all fee details being transparent and without hidden costs. Once confirmed, click "Submit" to complete the payment in your wallet, with the order becoming effective immediately, and energy will be allocated to the designated address.

Step Three: Order Management and Deposit Refund

During the rental period, users can manage orders at any time on the "Energy Rental" interface, and also support early rental termination (End), extending the rental period or adding energy (Renew), checking remaining energy and rental details, and other operations.

It is worth mentioning that early termination of an order can settle based on actual consumption, with remaining rental fees refunded fully; normal completion at the end of the rental period will automatically return the deposit in full.

Warm reminder: It is advisable to choose rental duration and energy quota reasonably based on actual on-chain operational frequency and usage cycle, 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 to directly burning TRX

Buy Energy is a new energy service function launched by JustLend DAO recently (August 20, 2026), emphasizing "buy and use immediately, no staking needed, no waiting," further lowering the barriers to acquiring energy.

Like Energy Rental, this service also allows users to purchase short-term energy (valid for 1 hour) at a lower cost without staking or burning TRX, for offsetting on-chain transaction fees when transferring USDT or other TRC-20 assets or executing smart contracts. Compared to directly burning TRX, this service can reduce on-chain transaction costs by about 64%, functioning as an "energy gas station" for short-term on-chain interactions.

It is important to note that the energy obtained from Buy Energy is valid for 1 hour (counting from the completion of the purchase) and will be automatically recovered by the system upon expiration. Thus, this service is more suitable for short-term, bulk, and clear transaction demands; it is advisable to purchase as needed to avoid waste.

From the user experience perspective, Buy Energy has three core advantages.

• Buy and use immediately, high efficiency in bulk: Orders are typically confirmed within 10 seconds of submission, and the energy is instantly available. It also supports bulk address purchases, allowing a single order to inject energy into up to 50 receiving addresses simultaneously, enabling quick selection and precise billing based on the number of USDT transfers, avoiding waste.
• No locking risk, flexible funds: There is no need to stake TRX, entirely avoiding the 14-day unstaking waiting period from the traditional staking model. For example, to obtain 65,000 units of energy (supporting 1 USDT transfer) through traditional staking would require locking approximately 6,791 TRX, tying up capital for a long time; whereas Buy Energy is immediate and does not lock any liquid funds.
• High cost-effectiveness, saving approximately 64% on fees: According to official estimates, compared to directly burning TRX, it can save about 64% on fees.

Regarding usage costs, according to official data, currently, purchasing 65,000 units of energy is required for a single USDT transfer; during the direct TRX burning payment, a single transfer typically consumes about 6.5 TRX, whereas through Buy Energy, purchasing 65,000 units of energy only requires about 2.34 TRX, resulting in a cost reduction of about 64%.

Taking a real USDT transfer as an example: directly burning TRX to pay Gas typically requires about 6.2371 TRX ($2.092); whereas after using Buy Energy, a single USDT transfer only requires 1.0076 TRX ($0.338). The cost can directly drop by about 84% with a single transfer, saving approximately $1.754, demonstrating a clear cost reduction effect, especially advantageous for high-frequency transfers.

In contrast to Energy Rental (which requires a prepayment, and dealing with rent and deposit refunds after the rental period), the Buy Energy process is much simpler—one-time purchase, with no subsequent refund management, but has a 1-hour usage window. In short, for operations with clear transaction requirements that need to be completed in a short time, select Buy Energy; for operations that require stable energy supply over a longer duration, Energy Rental can be opted for. Users can flexibly choose based on their time windows and transaction frequencies.

Buy Energy Operation Guide: Two main steps for quick access

Buy Energy currently supports wallets like TronLink, OKX, Binance, TokenPocket, WalletConnect, Ledger, etc. The overall usage process is divided into "select purchasing method" and "placing order," making operations simple.

Step One: Select Purchase Method

Buy Energy provides three purchasing entrances, allowing users to choose according to their needs:

• For USDT Transfers (Based on USDT transfer counts): Enter the planned number of USDT transfers, and the system automatically calculates the required energy (approximately 65,000 units per transfer), saving manual conversion efforts. Suitable for users who know the transfer count clearly.
• Presets: Six commonly used quick presets are provided—65k, 131k, 650k, 1M, 2M, 5M—for one-click purchase. For example, 65k supports 1 USDT transfer, 131k is suitable for cases where the receiving address is inactive, and 650k can cover approximately 10 USDT transfers. Suitable for users pursuing convenience.
• Custom: Manually inputting the required energy amount to meet personalized needs.

Step Two: Complete the Order

Regardless of how the purchase quantity is determined using the above methods, the subsequent process is entirely consistent and can be completed in two steps:

Fill in the receiving address: In the receiving addresses (Receiving Addresses) input box, add one or multiple addresses (up to 50), and can use shortcuts like history (History), current wallet address (Current Address), or reset (Reset) for quick filling.

Submit the order and pay the fee. The order page will clearly display the receiving address, energy per address, total resources (e.g., "1 USDT transfers" indicates roughly support for 1 USDT transfer), and the total amount due. (Warm reminder, if it includes inactive addresses, the system will charge an additional activation fee of 1.1 TRX each).

After successful purchase, users can view order information, remaining time, energy usage status, and other details in the order history (Order History).

3. No “Gas” Transfer Solution GasFree: Transfer tokens directly deduct Gas, lifting the limitation of holding native tokens

GasFree is a no “Gas” transfer solution launched by JustLend DAO in March 2025, aiming to provide users with a new solution to complete TRC-20 asset transfers without holding native tokens. Its core mechanism supports direct payment of Gas with the token being transferred, fundamentally breaking the traditional requirement of holding the corresponding native token for on-chain transfers.

This innovative design of “transfer what token, pay what fee” simplifies the originally cumbersome multi-step process from “pre-holding native tokens → initiating transfer with target tokens → paying Gas with native tokens” into a single-step operation of “directly transferring target tokens while simultaneously paying Gas,” significantly improving operational efficiency while making the user experience of transferring crypto assets closer to traditional financial payment habits, thus greatly lowering the on-chain operational thresholds for new users.

Currently, GasFree fully supports the two major stablecoins, USDT and USDD, and will continue to expand supported token categories and coverage scenarios. As of August 26, GasFree has processed a total transaction volume exceeding $130.5 billion, completed over 7.58 million transactions, and saved $8.4 million in fees, making it one of the preferred transfer tools among stablecoin users.

In terms of transaction costs, GasFree has a clear and transparent pricing mechanism: in June 2025, the platform unified the activation fee and transfer fee for USDT at 1.5 USDT; in August 2025, it added support for USDD transfers, where the address activation fee is 1 USDD, with subsequent each USDD transfer fee being only 0.5 USDD. Notably, users only need to use either USDT or USDD to complete address activation. Once activated, that address can support GasFree transfers for both assets without repeating activation fees.

More importantly, GasFree’s transfer fees are completely decoupled from the transfer amount—whether it’s a transfer of 100 USDT or 100,000 USDT, the fee remains constant. Compared to the uncertainty of transfer fees fluctuating with TRX prices and network energy unit prices under the traditional Gas model, this design provides significant cost certainty for large transfer users, completely mitigating the risk of uncontrollable fees due to market volatility.

GasFree Operation Guide: One-click activation, usable with zero TRX

Currently, GasFree has completed wallet integrations with TronLink (recommended), Guarda, Klever Wallet, eDir, etc., and will continue to open support for more mainstream wallets.

For example, in the TronLink wallet, users can directly click on the “GasFree” symbol next to the left of the address to easily switch to their exclusive GasFree wallet address.

Step One: Activate GasFree Address

GasFree currently supports two major stablecoins, USDT and USDD, and will gradually expand to support more asset types. Users only need to deposit the corresponding stablecoin into the exclusive GasFree address to complete account activation: the activation fee for USDT is 1.5 USDT, and for USDD, it is 1 USDD. Using either asset for activation allows the address to support GasFree transfer services for both asset types without needing to activate again.

Currently, there are two activation paths supported:

• Withdraw from CEX exchanges: Directly withdraw USDT/USDD from mainstream centralized exchanges like Binance, OKX to your exclusive GasFree address.
• On-chain transfer: Directly transfer USDT/USDD already held on-chain to the GasFree address (if you need to obtain USDD, you can use the SUN.io or USDD official website's PSM tool to exchange USDT with a single click).

Step Two: Initiate the Transfer and Complete Instantly

Enter the GasFree operation interface, accurately fill in the recipient address and target transfer amount, check the information and submit the transaction. The corresponding fee will be automatically deducted from the transferring USDT or USDD tokens: the transfer fee for USDT is 1.5 USDT per transaction, while for USDD, it is 0.5 USDD. The entire process can be completed without holding or using TRX.