A Comprehensive Guide to Understanding TRON's Energy Mechanism and Gas Saving Strategies: How to Smartly Utilize JustLend DAO's "Energy Leasing and GasFree" Dual Tactics to Reduce Gas Costs?

As the world's largest stablecoin network, TRON carries about 60% of the stablecoin trading volume. According to an August CoinDesk report, among the 50 countries surveyed, 35 directly listed TRON as the preferred blockchain for stablecoin payments. This global popularity means that every change in its on-chain gas fees captures the attention of users worldwide.

At the end of August, TRON welcomed the largest fee optimization since its mainnet launch: "Energy," as a core component of TRON's gas, saw its unit price drop from 0.00021 TRX to 0.0001 TRX, a reduction of nearly 60%. At the same time, a quarterly dynamic adjustment mechanism was introduced to ensure that fees can flexibly adapt to ecological demands. This significant adjustment quickly ignited discussions in the crypto community, with "How to achieve optimal gas fees on TRON?" becoming a hot topic.

As the official lending platform of the TRON ecosystem, JustLend DAO is committed to "reducing users' on-chain costs" and has launched two key fee reduction solutions: the Energy Rental service allows users to rent energy on-demand without long-term TRX staking, directly reducing the gas cost for each transaction; the GasFree smart wallet feature completely breaks the traditional limitation of "must use native assets to pay gas fees," allowing users to directly use transfer tokens (such as USDT) to cover transaction fees, significantly simplifying the on-chain transfer process.

Now, on the TRON network, users can easily achieve optimal gas fee experiences by leveraging JustLend DAO's "Energy Rental + GasFree" features, without worrying about the reserve of native tokens or incurring high transaction fees, truly enjoying the convenience and affordability of on-chain interactions.

TRON's Energy Mechanism and "Energy Rental Business": The Resource Allocation Logic Behind Low-Cost Interactions

In terms of gas fee management, the TRON network adopts a unique "Bandwidth + Energy" dual resource model. This allows for differentiated resource allocation for different on-chain operations, enabling developers to achieve precise cost control while forming a core advantage distinct from other public chains, especially suitable for high-frequency, small-amount, and complex on-chain interaction scenarios, such as DeFi and GameFi.
The two correspond to different resource demands for on-chain operations: bandwidth can be seen as the basic resource of the TRON network, mainly used to measure the storage and network resource consumption of transactions, and all on-chain operations require bandwidth to complete; energy, on the other hand, is more like a high-level resource specifically supporting smart contract-related operations, such as DeFi calculations, NFT minting, TRC20 token creation, and complex DApp interactions that rely on energy.
In simple terms, basic on-chain operations like TRX transfers, voting, and staking do not require calling smart contracts and can be completed using only bandwidth; however, using a DApp (like borrowing and lending TRX on JustLend DAO) involves contracts and thus requires a combination of "Bandwidth + Energy" for payment.

【Staking TRX only consumes bandwidth】

【Using JustLend DAO to store TRX triggers a smart contract, requiring both energy and bandwidth.】

This "Bandwidth + Energy" dual resource model design is the biggest difference between TRON and EVM networks like Ethereum, BNB Chain, and Base. In EVM networks, all operations are uniformly priced according to gas fees, regardless of whether they are simple transfers or complex smart contract calls. Miners prioritize transactions with higher gas fees, which means that during peak network times, even small transfers can see costs skyrocket, with fee fluctuations greatly exceeding expectations. In contrast, TRON's separation of bandwidth and energy cleverly avoids these issues: simple transactions rely on bandwidth, while complex contract operations are charged based on energy, ensuring fairness in contract execution and making costs more transparent and predictable, thus preventing ordinary users from being deterred by high costs and avoiding unnecessary waste of resources during complex operations.

In terms of acquisition, bandwidth and energy are both related and distinct: both can be obtained by staking TRX, but bandwidth provides a daily free quota of 600 units, sufficient to cover daily transfer needs. If the free quota is exhausted, users can either choose to stake TRX to obtain bandwidth or directly burn TRX to purchase it, with the price per unit of bandwidth consistently fixed at 0.001 TRX. Energy, however, has no free quota, and every interaction related to contracts requires energy consumption, which is directly proportional to the complexity of the contract. Therefore, the unit price of energy directly determines the cost of using DApps, with each transaction prioritizing the use of energy already available in the wallet address; if insufficient, TRX needs to be burned to obtain energy.

As the TRON ecosystem flourishes (e.g., growth in USDT circulation, increased DApp interactions), energy consumption has been rising year by year, while the rising price of TRX also drives up energy costs. To reduce network gas fees, TRON has significantly lowered energy prices twice since last September, with each reduction exceeding 50%: first, in September of last year, the price per unit of energy dropped from 0.00042 TRX to 0.00021 TRX, and most recently, on August 29 of this year, the energy price was reduced from 0.00021 TRX to 0.0001 TRX, directly cutting the energy cost of smart contract operations by 60%. A quarterly dynamic adjustment mechanism was also introduced, where super representatives will optimize the unit price every quarter based on TRX prices and network activity indicators to ensure cost adaptation to ecological demands.

Currently, users can obtain energy mainly through three methods:

1. Staking TRX to obtain energy, distributed daily based on the proportion of staked TRX to the total staked TRX in the network. For example, on September 5, staking 1 TRX would yield 10 units of energy;

2. Burning TRX to purchase energy, with the current unit price at 0.0001 TRX;

3. Renting, temporarily using idle energy staked by others. For example, on JustLend DAO, using 2.6 TRX can rent 100,000 energy, sufficient for two transaction needs.

【Method 1: Staking TRX to obtain energy】

【Method 2: Directly burning TRX to obtain energy】

【Method 3: Renting energy】

Among these, the "Energy Rental" is particularly noteworthy, as it is a unique economic ecosystem within the TRON ecosystem, relying on the shared nature of TRON's energy: TRX stakers can share their energy with other addresses, granting any user the right to "temporarily use others' idle energy." In the rental model, users do not need to stake large amounts of TRX long-term; they can simply pay a small rental fee to obtain the corresponding amount of energy as needed, meeting short-term on-chain operation demands.

Whether for personal USDT transfers, team contract development, or frequent contract interface calls by project parties, users can flexibly adapt by "renting as needed." This rental model achieves a win-win situation of "cost savings for users and profit for stakers." For on-chain users, there is no need to lock TRX long-term; by renting energy on the rental platform as needed, they can easily complete short-term operations (such as participating in DeFi mining or minting NFTs), saving on the cost of capital occupation and significantly lowering the entry barrier for using complex DApps. For TRX stakers, renting out their daily idle energy allows them to earn rental income, transforming "staking TRX" from a simple "ecological contribution" into a dual value of "contribution + profit," greatly enhancing capital utilization efficiency.

Currently, a large number of professional energy rental platforms have emerged in the market, including the Energy Rental service launched by JustLend DAO, the official lending platform of the TRON ecosystem, as well as professional third-party rental platforms like Catfee and TRONEnergy. These platforms accurately match supply and demand, providing diverse service models such as "per-use rental" and "customized on-demand," allowing idle energy to break through the limitation of "only personal ownership," promoting efficient circulation within the ecosystem, and further releasing resource value.

Today, the energy rental business has become a highly distinctive and vibrant financial scenario within the TRON ecosystem, reducing on-chain participation costs for ordinary users, activating idle assets for stakers, and enhancing the overall efficiency of TRX staking through efficient resource allocation. From the perspectives of user experience, asset value, and ecological circulation, it collectively solidifies TRON's core competitive advantage of "low cost and high vitality."

JustLend DAO's Official Energy Rental Service: A Core Tool for Saving Over 70% on Single Transaction Gas Costs on TRON

Currently, on the TRON network, whether for ordinary users with low-frequency operations or project parties, developers, and traders requiring high-frequency contract calls, obtaining energy through rental is the optimal solution. Compared to directly consuming TRX to obtain energy, the rental model can help users save about 70%-80% on fees for each smart contract operation (such as transfers, minting, and lending).

The TRON ecosystem lending platform JustLend DAO was the first to launch the energy rental service (Energy Rental) in 2023. With advantages of "no need to stake, safe and flexible, controllable costs," it has become a core tool for users to reduce on-chain costs and is currently the largest energy rental channel on the TRON network.

Currently, the energy rental market is still in its early development stage, and ordinary users often face concerns about "the security of third-party platforms and the lack of transparency in price details." As the official lending application of the TRON ecosystem, JustLend DAO has locked crypto assets worth over $8 billion (TVL), and its energy rental service comes with a "safe and reliable" trust foundation. Coupled with transparent fees throughout the service with no hidden costs, the operational link directly connects to the TRON mainnet, making it the "safe preferred platform" for users to obtain energy.

According to official website data, JustLend DAO's energy rental service provides over 50 billion units of energy daily, with a daily rental scale exceeding 10 billion units and a cumulative participation of 68,300 users.

The operation logic of JustLend DAO's energy rental service is very clear; users can quickly complete the rental process with just a few simple clicks, with no complicated steps involved. Specifically, the operation is divided into three main stages:

1. First, fill in the rental data: rental amount, rental duration, rental address.

The rental amount refers to the quantity of energy required, with a minimum rental unit of 100,000 (note that a single USDT transfer requires about 120,000 energy, so users can match as needed);
The rental duration supports hourly or daily rentals, with a maximum of 30 days for a single rental. Users can choose based on their operational frequency, such as selecting "1 day" for high-frequency interactions in a single day or "30 days" for long-term project development;

The receiving address is the target address where the energy will be allocated. If renting for oneself, this does not need to be filled in; if renting for others, the corresponding address must be accurately entered.

2. Submit the rental order and pay the advance payment: the rental energy adopts a "prepayment model," requiring payment of three parts: energy rental fee (core cost), deposit (refundable after the rental ends), and penalty (a security deposit to avoid violations). All fee details are real-time transparent, with no hidden costs.

For example, renting 100,000 units of energy for 1 day requires a total prepayment of 45.5 TRX.

3. End the rental and refund the deposit: after the rental is completed, users can manage orders in real-time on the "Energy Rental Interface": supporting rental fee refunds (early termination of rental), extending the rental period (additional fees required), and checking remaining energy and rental period.

Friendly reminder: If only a single transaction needs to be completed, it is recommended to return the energy immediately after the operation to avoid additional costs from idleness; if daily transactions are frequent (such as multiple DeFi operations daily), it is advisable to choose a long-term rental of 30 days.

From a cost perspective, the advantages of JustLend DAO's rental service are particularly significant: taking the common USDT transfer on TRON as an example, directly burning TRX requires an energy cost of about $4.3, while renting energy through JustLend DAO only costs $1.17, saving over $3 per transaction, with a cost reduction exceeding 70%.

【Cost comparison of USDT transfer without rental energy vs. with rental energy】

From the above operational process, it can be seen that JustLend DAO's energy rental has three core advantages:

1. No need for locking, flexible funds. Users do not need to stake large amounts of TRX long-term to obtain energy but can "rent as needed," renting the corresponding amount based on actual demand, avoiding the opportunity cost of capital being tied up long-term, especially suitable for temporary energy needs, such as single NFT minting or short-term DeFi interactions.

2. Simple operation, supporting multiple scenarios. This service is open to all TRON users, supporting "one-to-many rentals," allowing users to rent energy for their own address or for others, meeting the needs of individuals, teams, and project parties.

3. Controllable costs, friendly for high-frequency users. Having energy can directly offset the gas fees for smart contract operations, and for high-frequency trading users, such as GameFi players and DeFi arbitrageurs, long-term rentals can continuously compress costs, avoiding the problem of "accumulating high TRX burning fees."

More importantly, following the 60% drop in TRON's energy unit price on August 29, JustLend DAO responded on September 1 by lowering the "basic rental tax rate from 15% to 8%." Users can now enjoy the dual benefits of "reduced energy base price + lowered rental tax rate" when renting energy on JustLend DAO.

Currently, the energy price for JustLend DAO's energy rental service is about 26 SUN/day, allowing users to rent 100,000 units of energy for only 2.62 TRX (equivalent to the energy obtained by staking 9935 TRX), sufficient to cover two contract transactions, further amplifying the cost advantage.

JustLend DAO Launches GasFree Smart Wallet: Pay Gas Fees Directly with Transfer Tokens, Making Crypto Transfers as Simple as Sending Messages

In enhancing users' on-chain interaction experience, JustLend DAO not only offers energy rental services to help reduce gas costs but also launched the innovative GasFree smart wallet feature in March this year, further addressing the core pain point of crypto transfers: users no longer need to hold native tokens to pay gas fees (such as TRX). Whether transferring TRC20 or ERC20 tokens, the transaction fees can be directly deducted from the transferred tokens. This mechanism breaks the traditional limitation of "must use native tokens to pay network fees," providing a frictionless gas payment solution for token transfers, making crypto transfers more aligned with daily usage habits.

Moreover, the ultimate vision of GasFree goes beyond this: it aims to allow users to easily complete asset transfers across TRON, Ethereum, or other blockchains on the same interface—without needing to understand the underlying technical details or prepare various native tokens in advance. Ultimately, GasFree seeks to make "crypto transfers as simple as sending emails," while ensuring the security of a decentralized environment and the interoperability required for global payments, allowing blockchain transfers to truly integrate into daily life.

This innovative design of "paying fees in the same token being transferred" simplifies the originally cumbersome process of "exchanging native tokens → initiating transfer → paying gas" into "directly initiating transfer → deducting corresponding tokens as fees." This not only significantly improves operational efficiency but also greatly reduces the learning curve for new users, making crypto transfers more intuitive and user-friendly. Both newcomers and experienced users can enjoy a seamless asset transfer experience without worrying about "gathering native tokens to pay gas."

In April this year, TRON founder Justin Sun stated at the "BUIDL 2025" crypto conference in Hong Kong that for individual users, GasFree means they no longer need to worry about paying and calculating gas fees; for institutional users, it is a significant solution, as many institutions wish to integrate blockchain technology for efficient settlement but are reluctant to hold highly volatile cryptocurrencies directly. GasFree allows institutions to send and receive funds through addresses without touching native crypto assets, significantly lowering the usage threshold, promoting broader ecological access, and facilitating the large-scale adoption of blockchain technology.
In the month GasFree launched, the TRON ecosystem wallet TronLink was the first to integrate this feature, allowing users to simply open the TronLink app or browser extension, click GasFree, and immediately experience this new transfer method. Currently, this feature supports TRC20-USDT transfers and will expand to more asset types in the future. Additionally, to enhance user experience, JustLend DAO has simultaneously launched a 90% fee subsidy policy. With the support of this subsidy policy, users only need to pay about 1 USDT for each USDT transfer. It is important to note that when using the GasFree smart wallet for the first time in TronLink, a one-time activation fee of only 1 USDT is required.

【Using GasFree to transfer USDT only requires paying 1 USDT】

As of now, several mainstream wallets, including Guarda and Klever, have integrated GasFree, and more platforms are expected to support it in the future, further expanding its usage.

From a practical perspective, GasFree has already demonstrated strong ecological value: as of September 8, this feature has completed a cumulative transaction volume of up to $15.8 billion, with over 750,000 transactions, saving users nearly $2.2 million in gas fees, directly reflecting its role in "cost reduction and efficiency enhancement."

In addition to the innovation in payment experience, GasFree also excels in technical adaptability: it is compatible with any TRC20 or ERC20 token, does not rely on the implementation logic of specific tokens, and provides standardized interfaces and smart contract templates, allowing project parties to achieve "one-click deployment" of gas-free transaction systems, significantly lowering the entry barrier for new tokens into the ecosystem and further expanding the application coverage and applicable scenarios of GasFree.

To comprehensively reduce the usage costs for users and developers, GasFree has recently officially launched the Developer Center, which provides a one-stop energy management service tool covering "energy cost prediction, automatic energy rental, optimization suggestions," helping developers effectively control energy consumption when integrating GasFree features, simplifying the development and deployment process of DApps, allowing developers to focus more on product innovation without overly concerning themselves with underlying network energy cost issues, achieving dual optimization of "convenient transfers for users + efficient development for developers."

The launch of GasFree marks a solid step forward for the TRON ecosystem in continuously innovating and improving user experience. With more wallets and platforms integrating, users will enjoy lower transfer costs and more convenient operational processes, which not only optimizes the interaction experience within the TRON ecosystem but also provides a practical reference for the inclusive development of the entire blockchain industry through its innovative model of "breaking native token dependence."