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TVM energy equals EVM gas unit-for-unit. TRON is not computationally more expensive; it is priced more expensively. Every EVM optimisation transfers directly, at roughly 2,700× the stakes. That similarity is a trap. It makes porting EVM reasoning feel safe, and it has produced at least three published errors.

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Five differences that matter

Bandwidth is a separate resource at 1000 sun per byte and is untouched by any rental. A full pool deploy is roughly 5,148 bytes — about $1.69 of bandwidth that survives any rental strategy.Any figure derived by scaling a burn price to a rent price is suspect. One issue was wrong by $1.67 on the pool deploy this way by applying the forwarder’s ~680-byte transaction size to a ~5KB contract deploy.
The TVM hardfork matrix gates Constantinople, Istanbul, London, Shanghai, Cancun, and Blob. There is no Berlin gate, confirmed against live chain parameters. TIP-1884/2929 remains a proposal.The TVM opcode spec prices DELEGATECALL at 40 energy base, not 2,600. Do not port EVM cold/warm gas reasoning to TVM — a proxy overhead assumed at 2,661 is roughly 18× too high.
If one contract burns more than 5×10⁹ energy in a six-hour maintenance period, its energy cost is multiplied. The factor compounds by 20% per period to a maximum of 3.4, giving a total multiplier up to 4.4×. It decays at a quarter of the increase rate.Live mainnet parameters: getAllowDynamicEnergy 1, threshold 5,000,000,000, increase factor 0.2, max factor 3.4.Consequence: a fresh contract has energy_factor = 0, so per-merchant pools and per-invoice forwarders are DEM-immune by construction. Any shared contract — an EIP-1167 implementation — concentrates the risk. Model this explicitly whenever a shared contract is proposed.
Merchants sign their own pool deploy and their own claim from their own wallet, so they cannot use the platform’s rented energy. DelegateResource could change that, but then the platform pays — which defeats the purpose of a merchant-paid gate.
keccak256(0x41 ++ address ++ salt ++ keccak256(init_code))[12:], not 0xff.Re-proving this derivation on Nile is a hard gate before any address is shown as a QR. A prefix or bytecode mismatch strands funds permanently. It was proven on 2026-06-19 for the current init code and must be re-run for any new one.
Other TVM differences worth knowing: accounts have no nonce (replay protection is TAPOS, and transactions expire 60 seconds after construction by default); there is an 80 ms wall-clock execution cap per transaction with no EVM equivalent; CHAINID returns the last four bytes of the genesis block hash rather than a constant; and a TransferContract TRX transfer bypasses the contract’s fallback entirely.

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Cost of one full deposit-rail order

At TRX $0.3274, getEnergyFee 100 sun, getTransactionFee 1000 sun per byte. Rent modelled at 40 sun, the conservative end of the 60–80% discount band.

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Pool deploy, what the merchant pays

The merchant pays the burn column. The pool is not cloned — see Clone decisions — so the real number is **29.37∗∗,droppingtoroughly29.37**, dropping to roughly 27.30 once the reward code is stripped.

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Operation costs, individually

Measured from real Nile factory transactions rather than EVM approximation, at burn:

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Sanctions screening deviates on TRON

There is no Chainalysis on-chain oracle on TRON — it is EVM-only — so T… addresses cannot use the standard oracle path. The forced alternative is two keyless, identity-blind, fail-open layers: Tether’s isBlackListed on-chain read via TronGrid, and TRM Labs’ free keyless Sanctions API for OFAC parity. This is a documented deviation from the EVM oracle-only stance and gates TRON mainnet only. See Sanctions.

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Open TRON questions

  • DEM attribution. Does the Dynamic Energy Model attribute delegatecall energy to the implementation or the proxy? Unresolved by the docs and by TIP-491, whose worked example uses CALL. Blocks the per-customer forwarder design.
  • consume_user_resource_percent. Can the contract carry a share of the customer’s energy, making TRON checkout free for the payer? If so, the connect-rail tax moves onto the platform and several decisions shift.
  • Energy rental sourcing. The effective sun-per-energy must be read live — rental quote when active, burn rate on fallback. A floor computed at the burn rate is about 2.5× too conservative and refuses business the platform can serve profitably.