Collators aggregate parachain transactions block candidates and producing state transition proofs for validators based on those blocks.

Energy Web X is energy blockchain ecosystem powered by Polkadot Relay chain.

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Energy Web X

# Energy Web X Fees Methodology

## 1. Overview

Energy Web fees represent the total transaction fees paid daily on the Energy Web blockchain, measured in USD. This metric captures all fees paid by users for transaction processing, including both base transaction fees and tips paid to validators. The calculation aggregates individual transaction fees from Energy Web's substrate-based blockchain events and converts them to USD using end-of-day price feeds.

## 2. Data sources

The calculation relies on several key data sources:
- **Energy Web blockchain events**: Raw blockchain event logs from the Energy Web network containing transaction payment information
- **Transaction payment events**: Parsed `TransactionFeePaid` events from the `transactionPayment` pallet that record fee payments for each transaction
- **External price data**: End-of-day price feeds from CoinGecko for Energy Web Token (EWT) to enable USD conversion
- **Chain availability data**: Token Terminal's chain availability configuration to ensure data quality and coverage

## 3. Step-by-step calculation

### Component A: Raw event processing
- **Purpose**: Extract and process raw Energy Web blockchain events to identify fee-related transactions
- **Logic**: The system reads raw Energy Web blockchain event logs and truncates timestamps to daily granularity. Events are filtered and processed incrementally with a configurable lookback period to handle chain reorganizations and ensure data completeness. Each event contains metadata including block number, event index, pallet information, method name, and structured event data.
- **Key fields**: `block_timestamp` for timing, `event_pallet` and `event_method` for event classification, `event_data` containing fee amounts, `extrinsic_id` for transaction identification

### Component B: Fee extraction and calculation
- **Purpose**: Identify transaction payment events and extract fee amounts from the structured event data
- **Logic**: Events are filtered to include only those from the `transactionPayment` pallet with method `TransactionFeePaid`. For each qualifying event, the system extracts the base transaction fee from the second position in the `event_data` array and the transaction tip from the third position. These two components are combined to calculate the total fee paid for each transaction. The raw fee values are converted from wei units to token units by dividing by 10^18 to account for Energy Web Token's 18 decimal places.
- **Key fields**: `transaction_fee` (base fee amount), `transaction_tip` (additional validator tip), `extrinsic_id` for transaction linking

### Final aggregation
- **Combining components**: Daily transaction fees are summed across all transactions for each day, with each unique `extrinsic_id` representing a distinct transaction
- **Currency conversion**: Token amounts are converted to USD using end-of-day CoinGecko price feeds for Energy Web Token, ensuring consistent valuation timing across the dataset
- **Time aggregation**: All transactions are aggregated to daily boundaries using timestamp truncation, with fees summed for each calendar day
- **Final calculation**: The final metric represents the total USD value of all transaction fees paid on the Energy Web network each day, including both base fees and tips, with zero-filling applied for days with no transaction activity to maintain data continuity

*This methodology was automatically generated by Token Terminal's methodology analyzer.*

Total value users pay to use a protocol (gross fees, user-paid fees).

Energy Web XEWT

Fees

Fees

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Chain breakdown