How to Buy TRON Energy
TRON energy is a resource that pays for smart contract execution on the TRON network. You can buy energy by renting it from providers like CatFee, ITRX, TronSave, Feee, and TEM -- or use an aggregator like Merx that finds the cheapest price across all providers automatically.
What is TRON energy and why do you need it
Every smart contract operation on the TRON blockchain requires energy to execute. This includes USDT (TRC-20) transfers, DEX swaps on SunSwap or JustMoney, NFT mints, and any other contract interaction. Without sufficient energy, the network burns your TRX balance to cover the cost.
- Energy pays for smart contract operations: USDT transfers, DEX swaps, NFT mints
- Without energy, the network burns your TRX as fees -- typically 13-27 TRX per transfer
- A single USDT transfer costs 6.5-13 TRX when burning, vs 1-3 TRX with rented energy
- High-volume wallets (exchanges, payment processors) save thousands of TRX daily
For anyone sending more than a handful of TRC-20 transactions per day, acquiring energy through rental or staking is significantly cheaper than paying burn fees.
Three ways to get TRON energy
1. Stake TRX (free but capital-intensive)
TRON allows you to freeze (stake) TRX in exchange for energy. The amount of energy you receive is proportional to your stake relative to the total network stake. This method has zero recurring cost, but requires significant capital.
- Freeze TRX via Stake 2.0 to receive energy proportional to your stake
- Need approximately 6,000 TRX staked to cover one USDT transfer per day
- Capital is locked and cannot be used for other purposes
- Opportunity cost is high -- that TRX could earn yield elsewhere
- Energy allocation fluctuates as total network stake changes
2. Rent from a single provider
Multiple providers offer energy rental services. They stake TRX in bulk and delegate energy to your wallet for a fee. Each provider has different pricing, rental durations, and availability.
- CatFee -- 1-hour rentals, fast delegation
- ITRX -- 1 hour to 30 days, flexible durations
- Feee -- 10 minutes to 30 days, short-term specialist
- TronSave -- peer-to-peer marketplace model
- TEM -- peer-to-peer energy marketplace
- PowerSun -- 2 minutes to 30 days, wide range
- Netts -- 1-day fixed rentals
The downside of using a single provider is that prices vary and there is no fallback if that provider goes offline or runs out of inventory.
3. Use an aggregator (recommended)
An aggregator connects to multiple providers simultaneously, compares prices in real time, and routes your order to the cheapest available source. This gives you the best price without the overhead of managing multiple provider accounts and APIs.
- One API call gets you the best price across all providers
- Automatic fallback if a provider is offline or out of stock
- Merx connects to 7+ providers and polls prices every 30 seconds
- No need to maintain accounts with each provider individually
- Consistent API interface regardless of which provider fills the order
How to buy energy with the Merx API
Merx provides a simple REST API to check prices and create energy orders. Here is how to get started in four steps.
STEP 01Create an account at merx.exchange and generate an API key from the dashboard. Your key authenticates all API requests.
STEP 02Check current prices across all providers:
Create an energy order:
Merx routes the order to the cheapest provider. Energy is delegated on-chain to your target address within seconds. You can verify the delegation on any TRON block explorer.
Provider comparison
Each provider has different strengths. The table below summarizes the key differences to help you choose.
| Provider | Type | Durations | Resources | Min Order |
|---|---|---|---|---|
| CatFee | Direct | 1h | Energy | 32,000 |
| ITRX | Direct | 1h - 30d | Energy, Bandwidth | 32,000 |
| Feee | Direct | 10m - 30d | Energy, Bandwidth | 20,000 |
| TronSave | P2P | 1h - 14d | Energy, Bandwidth | 32,000 |
| TEM | P2P | 1h - 30d | Energy | 32,000 |
| PowerSun | Direct | 2m - 30d | Energy | 10,000 |
| Netts | Direct | 1d | Energy, Bandwidth | 50,000 |
| Sohu | Direct | 1h - 3d | Energy | 32,000 |
Tips to save on TRON fees
- Buy the exact amount you need -- a standard USDT transfer requires 65,000 energy (or 131,000 for a first-time recipient address)
- Use the shortest rental duration for one-off transfers to minimize cost
- For recurring transfers, longer durations (1 day or more) offer a lower per-unit cost compared to hourly rentals
- Use Merx for automatic best-price routing -- it compares all providers every 30 seconds and picks the cheapest
- Batch your transfers when possible to make more efficient use of a single energy rental period
- Monitor energy prices during off-peak hours (early UTC mornings tend to have lower demand and prices)
Frequently asked questions
What is TRON energy?
TRON energy is a network resource required to execute smart contract operations. Every TRC-20 token transfer, DEX swap, or contract call consumes energy. If your wallet lacks energy, the network burns TRX from your balance instead.
How much energy do I need for a USDT transfer?
A standard TRC-20 USDT transfer to an address that already holds USDT requires approximately 65,000 energy. If the recipient has never held USDT before, the transfer costs approximately 131,000 energy due to storage allocation.
Which energy provider is cheapest?
Prices change constantly as providers adjust based on supply and demand. An aggregator like Merx polls all providers every 30 seconds and routes your order to whichever provider has the lowest price at that moment.
Can I buy energy without staking TRX?
Yes. Energy rental providers delegate energy to your address for a fee, without requiring you to stake any TRX yourself. You pay a small amount per unit of energy and receive it via on-chain delegation.
How fast is energy delegation?
Most providers complete delegation within seconds after payment confirmation. The energy appears in your wallet within one TRON block (approximately 3 seconds).
What is the difference between energy and bandwidth?
Energy covers smart contract execution costs (USDT transfers, DEX trades). Bandwidth covers basic transaction data size costs (simple TRX transfers). Most users need energy, as TRC-20 operations are the primary cost driver.
Is energy rental safe?
Yes. Energy delegation is a native TRON feature. The provider delegates energy to your address without gaining any control over your funds. The delegation is verifiable on-chain via any block explorer.
Can I rent energy via an API?
Yes. Most providers offer APIs for programmatic access. Merx provides a unified API that abstracts all providers behind a single endpoint, so you do not need to integrate with each one individually.
What is an energy aggregator?
An energy aggregator connects to multiple rental providers, compares their prices in real time, and routes orders to the cheapest available source. It provides one API, one account, and automatic provider fallback.
How does Merx compare to renting directly from a provider?
Merx compares prices across 7+ providers every 30 seconds and always routes to the cheapest one. Direct rental locks you into one provider with no fallback. Merx also provides a unified API, balance management, and order history.