JustLend DAO has launched Buy Energy, a new TRON energy service designed for immediate, short-term use. The source article says the feature was announced on Aug. 20 and that, based on official calculations, users can save as much as 64% in fees compared with burning TRX directly to obtain on-chain resources.
With the launch, Buy Energy joins two existing tools in the same product set: Energy Rental and GasFree. The article presents the three services as a coordinated fee-optimization matrix for different activity types across the TRON ecosystem.
Three products aimed at different on-chain needs
According to the article, Energy Rental and Buy Energy give users two low-threshold ways to obtain energy without staking TRX or burning TRX. Users can either rent energy for a chosen period or buy it directly based on actual needs, then use that energy to offset resource consumption tied to on-chain operations on TRON.
GasFree is positioned differently. It is aimed at token transfer scenarios and lets users pay gas with the asset being transferred, including USDT and USDD, rather than having to hold TRX first. In the article’s framing, that removes the usual requirement to keep the chain’s native token on hand before sending stablecoins.
The piece says the three tools cover most common gas and energy demand scenarios on TRON. GasFree is presented as the choice for stablecoin transfers when a wallet does not hold TRX. Buy Energy is described as a fit for temporary batch-address operations or short bursts of frequent, small interactions. Energy Rental is framed as the better option for sustained smart-contract calls and DeFi use.
TRON’s Bandwidth and Energy model
The article spends significant space explaining the resource model behind these products. TRON uses a dual-resource structure built around Bandwidth and Energy.
Bandwidth is the base resource and includes a free allowance. It measures the storage and network resources consumed by transactions. Basic operations such as standard TRX transfers, voting, staking and unstaking consume only Bandwidth. Each account receives 600 units of Bandwidth per day for free, the article says. After that quota is exhausted, users can replenish resources by staking or burning TRX. The current cost of burning TRX for Bandwidth is listed as 0.001 TRX per unit.
Energy is the higher-level resource used for smart contracts and comes with no daily free quota. The article says DeFi interactions, NFT minting, TRC-20 token issuance and TRC-20 transfers all consume Energy. As with Bandwidth, users can obtain it by staking or burning TRX, while actual consumption depends on contract complexity and effective cost can vary with the TRX price.
The article also notes that TRON has reduced the burn cost of Energy multiple times. It states that in August 2025, the burn price per unit of Energy was cut from 0.0021 TRX to 0.0001 TRX. Even so, the piece says direct burning can still be costly in practice when TRX trades higher.
The three fee-reduction tools described by the article
The source breaks the current JustLend DAO toolkit into three parts.
- Energy Rental: users can rent energy by the hour or by the day without staking or burning TRX. Rental terms run from 1 hour to 30 days, the service can rent on behalf of another address, fees are settled according to rental duration and actual energy consumption, and unused energy can be refunded. The article says this is best suited to users with ongoing Energy needs.
- Buy Energy: users can purchase a one-off amount of energy for short-term use. The validity window is 1 hour, after which unused energy is reclaimed automatically. A single order can inject energy into as many as 50 addresses, and the interface supports quick ordering based on the number of USDT transfers. The article says official estimates put savings at about 64% versus direct TRX burning.
- GasFree: lets users pay transfer fees in the token they are sending rather than in TRX. At present, the article says, GasFree supports USDT and USDD, with more assets to be added later.
The article makes clear that these are not meant to replace one another. Instead, they form a layered system: GasFree for stablecoin transfers, Buy Energy for short-lived or batch smart-contract interactions, and Energy Rental for medium- to longer-term usage.
Energy Rental: flexible terms from 1 hour to 30 days
Energy Rental was introduced in 2023, according to the article, as JustLend DAO’s first on-chain energy solution. It allows users to rent energy by the hour or by the day without staking or burning TRX, with terms ranging from 1 hour to 30 days. It also supports renting energy for any designated address.
The article contrasts this with the traditional alternatives. Staking TRX requires users to lock up a large amount of TRX and wait 14 days to unlock. Burning TRX avoids the lockup but creates an irreversible asset cost. Energy Rental is presented as a way around both limits by aligning usage with actual need.
Use cases listed in the article range from one-off NFT mints, meme coin trading and short DeFi interactions to longer-running activity from arbitrage traders and project developers who need a more stable energy supply over time.
The article says the entire rental process is executed by on-chain smart contracts and that the billing rules are publicly visible. Users can end a rental early. Final settlement is then based on actual rental time and actual energy consumption, with unused rent returned through the original route.
Citing Aug. 27 data from the official website, the article says the Energy Rental service outputs nearly 48 billion units of energy per day on average, has recorded a peak single-day rental scale of more than 16 billion units, and has served more than 82,300 users in total.
On pricing, the article cites official data dated Aug. 27 saying the rental rate was 40 sun per day, meaning 100,000 units of energy cost 4.03 TRX to rent, while also noting that energy prices vary with utilization. It adds that this amount of energy is comparable to the output from staking about 10,450 TRX and is enough for two contract transactions. Burning TRX directly for the same amount would cost 10 TRX, the article says, implying a cost reduction of nearly 60% through renting.
The piece also gives a USDT transfer example. Directly burning TRX for gas in the same period would cost about $2.092, while using rented energy would reduce the gas cost to $0.115, a per-transaction saving of more than 94.5%.
How Energy Rental works
The article describes a three-step flow and says the service supports TronLink, OKX, Binance, TokenPocket, WalletConnect and Ledger, among others.
- Enter rental details: choose the amount of energy, the rental period and the receiving address. The minimum order is 100,000 units of energy. Terms run from 1 hour to 30 days. The page fills in the connected wallet address by default, though users can choose another address.
- Pay the prepayment and submit the order: the article says Energy Rental uses a prepayment model. Each order includes the energy fee, a deposit, and a settlement fee. The system calculates the total before submission, and the order takes effect once payment is confirmed in the wallet.
- Manage the order and receive refunds: users can manage their orders during the rental period, including ending a rental early, extending the term, adding more energy, and viewing remaining energy and time details. Early termination settles against actual consumption and returns unused rent. If the order runs to maturity, the deposit is refunded in full automatically.
Buy Energy: immediate use, 1-hour validity, up to 50 addresses
The article identifies Buy Energy as a newly launched TRON energy function and gives the launch date as Aug. 20, 2026. It is designed around immediate use, no staking, and no waiting.
Like Energy Rental, Buy Energy lets users obtain energy without staking or burning TRX and use that energy to offset fees tied to TRC-20 transfers such as USDT or to smart-contract execution. The main distinction is the time window. Buy Energy remains valid for 1 hour from purchase and is reclaimed automatically after that.
That short window makes the product better suited, in the article’s telling, to short-duration, batch tasks with a clear number of transfers.
The article lists three core advantages:
- Immediate use and batch efficiency: orders are usually confirmed within 10 seconds, after which the energy is available. A single order can inject energy into as many as 50 recipient addresses.
- No lock-up risk: users do not need to stake TRX and therefore avoid the 14-day unstaking wait. The article gives an example in which obtaining 65,000 units of energy, enough for one USDT transfer, would require staking about 6,791 TRX under the traditional model.
- Lower cost: official estimates in the article say Buy Energy can save about 64% in fees compared with burning TRX directly.
On transaction cost, the article says one USDT transfer currently requires 65,000 units of energy. Paying for that transfer by directly burning TRX typically consumes about 6.5 TRX, while buying 65,000 units of energy through Buy Energy costs about 2.34 TRX, a reduction of roughly 64%.
The piece then provides another USDT transfer example with dollar values attached. Direct burning costs about 6.2371 TRX, or $2.092, for a single transfer. Buy Energy reduces that to 1.0076 TRX, or $0.338. Using those figures, the article says the saving is about $1.754 per transfer and the fee reduction is around 84%.
The article also contrasts Buy Energy with Energy Rental on workflow. Rental requires prepayment and post-term handling for rent and deposit, while Buy Energy is a one-time purchase with no later refund management, but only within a 1-hour usage window. It presents the choice simply: if the number of transfers is clear and execution is concentrated in a short period, Buy Energy fits; if activity is spread over a longer period and needs a stable energy supply, Energy Rental is more suitable.
Buy Energy ordering options
The article says Buy Energy supports the same wallet set, including TronLink, OKX, Binance, TokenPocket, WalletConnect and Ledger. The flow is split into choosing a purchase mode and then placing the order.
Three purchase modes are listed:
- For USDT Transfers: users enter the number of USDT transfers they plan to make, and the system converts that into the required amount of energy. The article says each transfer uses about 65,000 units.
- Presets: six preset levels are available — 65k, 131k, 650k, 1M, 2M and 5M. The article says 65k supports one USDT transfer, 131k is for cases where the recipient address has not been activated, and 650k roughly covers 10 USDT transfers.
- Custom: users enter an energy amount manually.
After the amount is set, users add one or more receiving addresses, with a limit of 50, using shortcuts such as History, Current Address and Reset if needed. The order page then displays the receiving addresses, the energy allocated per address, the total resource amount and the total payable amount. If an order includes unactivated addresses, the article says the system charges an additional activation fee of 1.1 TRX per address. Completed orders can be reviewed in Order History, including remaining time and energy usage.
GasFree: token-based gas payment for USDT and USDD transfers
GasFree was launched in March 2025, according to the article, as a transfer method that allows users to move TRC-20 assets without holding the native token first. Its key feature is that the transferred token itself pays the gas fee.
The article describes this as a shift from the older multi-step path — hold the native token in advance, initiate the token transfer, then pay gas in the native token — to a single-step transfer in which the asset being sent covers the fee at the same time.
GasFree now supports USDT and USDD. The article says that as of Aug. 26, it had processed more than $130.5 billion in transaction volume, completed more than 7.58 million transactions, and saved users $8.4 million in fees.
The pricing structure is laid out in detail. In June 2025, the platform adjusted the USDT address activation fee and transfer fee to a unified 1.5 USDT. In August 2025, support for USDD was added, with a 1 USDD address activation fee and a 0.5 USDD fee for each later transfer. The article notes that users only need to activate an address once with either USDT or USDD; after that, the same address can use GasFree transfers for both assets without paying a second activation fee.
Another point stressed by the article is that the fee per transfer does not change with the amount being sent. Whether the user transfers 100 USDT or 100,000 USDT, the fee remains the same. The article compares this with the standard gas model, in which costs can move with the TRX price and the network energy rate.
How GasFree is used
The article says GasFree has already been integrated with TronLink, Guarda, Klever Wallet and eDir, with support for more wallets to come.
Using TronLink as the example, the article says a user can click the GasFree marker shown next to the address in the interface and switch directly to a dedicated GasFree wallet address.
- Activate the GasFree address: the service currently supports USDT and USDD. Users activate the account by depositing the relevant stablecoin into the dedicated GasFree address. Activation costs 1.5 USDT for USDT and 1 USDD for USDD. Once activated with either asset, the same address can use GasFree for both assets. The article lists two activation routes: withdrawing from centralized exchanges such as Binance and OKX to the GasFree address, or transferring existing TRON-based USDT or USDD to that address. It also says users who need USDD can use USDT to swap through SUN.io or the PSM tool on the USDD website.
- Send the transfer: after entering the GasFree interface, users fill in the recipient address and target amount, then submit the transaction. The fee is automatically deducted from the USDT or USDD being transferred. The article gives the fee as 1.5 USDT per USDT transfer and 0.5 USDD per USDD transfer, with no TRX needed at any point.
A scenario-based cost stack for TRON users
Across the article, JustLend DAO’s products are framed as a scenario-based toolkit rather than three competing features. Energy Rental covers recurring smart-contract activity. Buy Energy addresses short-lived, concentrated operations. GasFree serves stablecoin transfers, especially when users do not keep TRX in the wallet.
That leaves users with a simple selection path based on what they are trying to do on-chain. For stablecoin transfers, the article points to GasFree first. For TRC-20 transfers, DeFi, NFT and dApp interactions, it says users can switch between Buy Energy and Energy Rental depending on time horizon, frequency and the number of addresses involved.