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 Block time Methodology

## 1. Overview

Block time measures the average time interval between consecutive blocks on the Energy Web blockchain, aggregated daily. This metric indicates the blockchain's block production efficiency and network performance. The calculation determines the time difference between each block and its predecessor, then averages these intervals by day to provide a daily block time metric in milliseconds.

## 2. Data sources

- **Energy Web blockchain data**: Raw block records containing block numbers and block timestamps from the Energy Web blockchain
- **Chain availability data**: Configuration data used to filter metrics based on blockchain operational status

## 3. Step-by-step calculation

### Component A: Block data extraction
- **Purpose**: Extracts clean block timestamp and number data for processing
- **Logic**: Retrieves block timestamps and block numbers from Energy Web blockchain data, filtering out the genesis block (block 0) which has an artificial timestamp at Unix epoch start and would skew calculations
- **Key fields**: `block_timestamp` (when the block was produced), `block_number` (sequential block identifier)

### Component B: Block interval preparation
- **Purpose**: Pairs each block with its immediate predecessor to enable time difference calculation
- **Logic**: Uses a lag window function ordered by block number to retrieve the previous block's timestamp for each block, creating pairs of consecutive blocks
- **Key fields**: `block_timestamp` (current block time), `previous_timestamp` (preceding block time), `block_number` (for ordering)

### Component C: Block time calculation
- **Purpose**: Calculates the actual time interval between consecutive blocks
- **Logic**: Computes the millisecond difference between each block timestamp and its predecessor's timestamp, truncates timestamps to daily boundaries for aggregation grouping, filters out records where no previous timestamp exists (first block after genesis)
- **Key fields**: `block_time` (milliseconds between blocks), `timestamp` (day-truncated for grouping)

### Component D: Daily aggregation
- **Purpose**: Produces daily average block times with standard metric metadata
- **Logic**: Groups block time measurements by day and calculates the average block time, adds standard Token Terminal metadata fields including chain identifier, market sector, and business segment classifications
- **Key fields**: `block_time` (daily average), `timestamp` (daily boundary), `chain_id` ('energyweb'), `market_sector_id` ('blockchains_l2'), `business_segment_id` ('blockchain')

### Final aggregation
- **Combining components**: Sequential processing flow from raw blocks to paired timestamps to calculated intervals to daily averages
- **Currency conversion**: Not applicable - metric is measured in milliseconds
- **Time aggregation**: Daily boundaries created by truncating block timestamps to day granularity, then averaging all block intervals within each day
- **Final calculation**: Average of all block time intervals (in milliseconds) that occurred within each calendar day, filtered by chain availability status to ensure data quality and exclude periods when the blockchain may not have been fully operational

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

avg(block_timestamp - previous_block_timestamp)

Energy Web XEWT

Block time

Block time

Competitive landscape

Chain breakdown