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What is TRON Energy?
Understanding how TRON energy works and why it matters for your transactions.
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Rent TRON energy and pay up to 80% less in fees
## Resources on TRON
TRON uses bandwidth and energy. Smart contract calls (like USDT TRC20) consume energy.
## Why it matters
If you don't have enough energy, you pay more TRX. Renting energy can reduce that cost.
## Quick mental model
Think of energy as fuel for contract execution — you can buy it by burning TRX or obtain it via delegation/rental.