TRON Energy Rental # Rent TRON energy. Stop burning TRX on every USDT transfer. A USDT TRC-20 transfer runs contract code, and the network charges energy for it. With none in the wallet, TRON takes the cost in burnt TRX — the most expensive way there is to move a token. Rent the energy for the moment of the transfer instead and the wallet burns nothing. **Paste the recipient and we check the chain ourselves.** An address that already holds USDT needs about 64,285 energy. One that does not needs about 130,285, because the transfer has to create the storage slot. Everyone else asks you to pick. We look. - No account, no signup, no wallet connection - We never ask for a private key or seed phrase - Delegated on-chain — verify it in TronScan ## Rent energy now Live price Recipient TRON address I know the amount — let me set it 64,285 · one transfer 130,285 · new recipient 260,570 · two new energy We will price exactly this and stop checking the recipient. Clear the field to hand the decision back to us. How long do you need it? 1 hour one transfer 1 day a batch 3 days steady flow Energy — Burning it yourself — You pay — Enter an address to see the price **Send exactly** `` Waiting for your payment… No account. No private keys, ever. The energy is delegated to the address you name and is visible on-chain. **Seconds, not minutes** Delegated as soon as payment clears **No keys, no signup** No account, and no private keys **Verifiable on-chain** Check the delegation in TronScan **REST API for volume** A retry never buys energy twice ## What a USDT transfer actually costs on TRON The chain burns TRX at a rate set by network governance — currently **100 SUN per energy unit**, or 0.0001 TRX. That rate has moved before: it was 420 SUN, then 210, now 100\. We read the live value from the chain rather than hard-coding it, so the comparison below is the one in force right now. Recipient already holds USDT 64,285 energy The transfer updates a balance that already exists. This is the ordinary case — an exchange deposit address, a wallet you have paid before. ≈ 6.43 TRX burned if you do nothing Recipient holds no USDT yet 130,285 energy The contract has to create a storage slot for them before it can write a balance into it. Creating costs roughly twice what updating does — and this is the case that produces most failed transfers. ≈ 13.03 TRX burned if you do nothing **This is the number nobody asks you for.** Every other rental service shows a 65k / 131k switch and leaves the choice to you. Choose low and the transfer reverts with `FAILED-OUT_OF_ENERGY`, consuming the fee and delivering nothing. Choose high and you have paid for roughly twice what you needed. We read the recipient's balance and size the order for the transfer you are actually about to make. ## Three steps, no account From pasting an address to energy landing on it, with nothing to sign up for in between. 1 ### Paste the recipient The address the USDT is going to — not yours. We look it up on chain, work out whether the transfer creates a storage slot or updates one, and size the order accordingly. You see the figure and the reason for it before you pay anything. 2 ### Pay the invoice A price fixed for a short window, shown next to what burning the same energy would cost. Pay it in crypto — the invoice carries the order, so nothing has to be matched up by memo or by amount afterwards. 3 ### Send your USDT The energy is delegated to the address within seconds and is visible on-chain. Make your transfer; it consumes the delegated energy instead of burning TRX. Anything left over returns to us when the window closes. ## “OUT\_OF\_ENERGY” and how to stop it The transaction started, ran out of energy part-way through, and reverted. The fee is consumed anyway. This is the failure mode that costs money and delivers nothing, and it is almost always one of two situations. **The wallet had some energy, but not enough.** Partial energy is worse than none: TRON will start the transfer, spend what is there, and revert. Rent the whole amount, not the shortfall you guessed at. **The recipient turned out to be new to USDT.** You budgeted for 65,000 and the transfer needed 130,285 because it had to create a storage slot. This is the common one, and it is exactly what checking the address beforehand prevents. _tronscan · transaction_ ``` Result FAILED Message OUT_OF_ENERGY Energy Usage 64,285 / 130,285 required Fee 6.43 TRX (consumed, reverted) # the recipient held no USDT. # the transfer had to create the slot, # and the budget was for updating one. → checking the address first costs nothing and is the whole of the fix. ``` ## Energy is not bandwidth, and a transfer needs both Two separate resources, and confusing them is a common way to be surprised. **Energy** pays for the computation a contract call performs. **Bandwidth** pays for the bytes the transaction occupies in a block. A USDT transfer consumes both — roughly 345 bandwidth alongside its energy. Bandwidth is cheap, and every TRON account receives a free daily allowance that covers a handful of transfers, so most people never buy it. But an account with no bandwidth allowance left _and_ no TRX will still fail even with energy delegated to it — a fraction of a TRX on the wallet clears that. We say so here because it is the one thing energy alone does not solve. ## Three ways to pay for a transfer The same USDT transfer, funded three different ways. | Burning TRX | A typical rental site | Crypto Chief | | | ------------------------------- | ------------------------------------- | -------------------------------------------- | ----------------------------------------- | | How much energy you get | Whatever the chain charges you for | Whatever you picked from a 65k / 131k switch | Sized from the recipient's actual balance | | If the recipient is new to USDT | You are charged double, automatically | You under-buy and the transfer reverts | Detected before you pay, priced correctly | | Cost of the energy | 100 SUN per unit, set by the chain | Below burn, varies by site and hour | Live price, shown next to the burn cost | | If renting is not cheaper | — | Sold to you anyway | We decline the sale and tell you why | | Signup | None | Varies — often an account or a bot | None | | Retrying a timed-out API call | — | Frequently buys the energy twice | Idempotency key — returns the first order | | Built into a payment platform | — | — | Sweeps and payouts supplied automatically | ## Moving USDT at volume? Do it from the API Exchanges, payout desks, PSPs and anyone settling in USDT are buying the same energy hundreds of times a day. Two things matter at that rate, and neither shows up on a landing page calculator. ### A retry must not buy twice Every order carries an idempotency key of yours. A request that times out can be repeated safely: the same key returns the original order rather than placing a second one. Where we genuinely cannot tell what happened, the order is held open and flagged for a person — never retried automatically, because that is precisely how one transfer gets paid for twice. ### The size question, answered by us Leave the energy amount out and we read the recipient and size the order. At volume this is the difference between systematically over-buying on every warm address and systematically failing on every cold one. [Read the API docs](https://docs-processing.crypto-chief.com/) [Talk about volume](/contact/) _POST /v1/orders_ ``` # energy omitted on purpose: # we read the recipient and size it. curl https://energy.crypto-chief.com/v1/orders \ -H "Authorization: Bearer $API_KEY" \ -H "Idempotency-Key: payout-8814" \ -d '{"receive_address": "TXYZ…"}' { "status": "delivered", "energy": 130285, "recipient_state": "cold", "settled": true } ``` ## What people ask about TRON energy The questions behind the searches, answered properly rather than padded out. ### How to rent TRON energy Paste the receiving address into the calculator at the top of this page, choose how long you need the energy for, and pay the invoice. The energy is delegated to that address within seconds. There is no account to create and no wallet to connect. ### How to buy TRON energy cheaply The cheapest energy is the energy you do not over-buy. Because the price scales with the amount, sizing the order to the actual recipient saves more on a warm address than shopping between sites does. The calculator prices your specific transfer against what burning would cost, so the comparison is concrete rather than a percentage claim. ### TRON energy price and SUN per unit Energy is priced in SUN, where one TRX is 1,000,000 SUN. The chain's own burn rate is currently 100 SUN per energy unit, which is the ceiling any rental has to beat to be worth anything. Rental prices move with supply through the day, so the figure in the calculator is fetched live rather than published as a fixed table. ### TRON energy calculator The widget on this page is one, with a difference: it does not ask you how much energy you need. It reads the recipient and works it out — 64,285 for an address holding USDT, 130,285 for one that is not — then shows the rental price beside the burn cost. ### Energy vs bandwidth on TRON Energy pays for computation; bandwidth pays for transaction size. A USDT transfer needs both — roughly 345 bandwidth alongside its energy. Every account gets a free daily bandwidth allowance, so bandwidth is rarely the problem, but a wallet with neither allowance nor TRX will fail even with energy delegated. ### Why does a USDT transfer cost 13 TRX? Because the recipient holds no USDT. The contract has to create a storage slot for them rather than update one, which costs roughly double — about 130,285 energy against 64,285\. The same transfer to an address that already holds USDT burns about 6.43 TRX. ### Delegating energy to another address TRON lets an account delegate its energy to another account without moving any TRX. That mechanism is what renting is built on: we hold the energy and delegate it to your address for a fixed window. It is why no rental service needs your private key — the delegation is authorised on our side, not yours. ### TRON energy API for exchanges A REST API with idempotency on every order, so a timed-out request can be retried without buying the energy again. Leave out the amount and the recipient is read and the order sized. Suited to withdrawal queues, payout batches and deposit sweeps where the same call runs hundreds of times a day. ### Energy for a whole payment platform Crypto Chief is a crypto processing platform first. Every TRC-20 transfer it makes for a merchant — sweeping deposits, sending payouts, executing contract calls — can be supplied with energy automatically instead of funded with TRX. If you are moving USDT programmatically, that is usually a better fit than buying transfer by transfer. ## Frequently asked questions Energy, bandwidth, what a transfer really costs, and how renting works. ### What is TRON energy? Energy is the resource the TRON network spends when a transaction runs smart contract code. A USDT TRC-20 transfer is a contract call, so it consumes energy. An account holding no energy pays for it by burning TRX at the network's spot rate, which is the most expensive way to move a token on TRON. Energy can also be delegated from one account to another, which is what renting is: we hold the energy and delegate it to your address for the moment of the transfer. ### How much energy does a USDT transfer need? It depends on the recipient, and this is the part most people get wrong. Sending USDT to an address that already holds USDT updates an existing storage slot and costs about 64,285 energy. Sending to an address that holds none has to create that slot, which costs about 130,285 energy — roughly double. Paste the address into the calculator on this page and we read the chain and size the order for you, rather than asking you to guess. ### How much does it cost to send USDT on TRON without energy? The chain burns TRX at a governance-set rate per energy unit — currently 100 SUN, or 0.0001 TRX. So a transfer to an address that already holds USDT burns about 6.43 TRX, and a transfer to a fresh address burns about 13.03 TRX. That rate is a network parameter and has changed before: it was 420 SUN, then 210, now 100\. We read the live value from the chain rather than hard-coding it, so the comparison you see is the one in force right now. ### How much can I save by renting energy? Renting typically costs well under half of what burning the same energy would. The exact figure moves with the market, so this page does not advertise a fixed percentage — the calculator shows the live price for your specific transfer next to what burning would cost, and you decide. If renting is ever not cheaper than burning, we say so and decline the sale rather than charging you to be no better off. ### Do I need to register or connect a wallet? No. There is no account, no signup and no wallet connection. You paste the recipient address, we quote it, you pay the invoice, and the energy is delegated to that address. We never ask for a private key or a seed phrase, and no service that rents energy ever needs one — delegation happens from our side, not yours. ### How fast does the energy arrive? Delivery is normally a few seconds after payment confirms. The energy is delegated directly to the address you named and is visible on-chain, so you can verify it in TronScan rather than take our word for it. ### What does FAILED-OUT\_OF\_ENERGY mean and how do I fix it? It means the transaction ran out of energy part-way through execution and reverted. The fee is still consumed — this is the failure mode that costs money and delivers nothing. It usually happens because the wallet had some energy but not enough, or because the recipient turned out to be a fresh address needing roughly twice as much as expected. Renting the full amount before you broadcast avoids it. Our calculator sizes for the recipient specifically, which is the case that most often catches people out. ### Is bandwidth included? No, and this trips people up. Bandwidth is a separate TRON resource that pays for the size of the transaction, while energy pays for the computation. A transfer needs both. Bandwidth is cheap — a few hundred bytes' worth, a fraction of a TRX — and every account gets a free daily allowance, so most transfers never need to buy it. But an account with zero bandwidth and zero TRX will still fail even with energy delegated. ### Is there an API for exchanges and payment providers? Yes. A REST API with idempotency keys on every order, which is the part that matters at volume: a request that times out can be retried safely, and asking again for the same key returns the original order rather than buying the energy a second time. Orders where we cannot determine what happened are held open and flagged for a human rather than silently retried. ### Can energy rental be built into a payment platform? It already is. Crypto Chief runs a crypto processing platform, and every TRC-20 transfer it makes on a merchant's behalf — deposit sweeps, payouts, contract calls — can be supplied with energy automatically rather than funded with TRX. If you are moving USDT programmatically at any scale, that is usually a better fit than buying energy transfer by transfer. ### What happens to the energy when the rental expires? It returns to us. Rented energy is delegated for a fixed window, and anything unused at the end of it is simply reclaimed — there is no carry-over and nothing to cancel. Rent for the window you actually need; a longer one costs more and buys you time you will not use. ### Which addresses can receive energy? Any activated TRON account. An address that has never received anything is not yet activated on chain and cannot be delegated to — we detect that and tell you before taking any money, rather than selling you a delivery that cannot happen. ## Stop burning TRX on the next transfer Paste the address, see what it actually needs, and pay a fraction of what the chain would have taken. No account, no keys, no sales call. [Rent energy now](#nrg-widget) [API documentation](https://docs-processing.crypto-chief.com/)