Introduction This dataset presents a sample of import aggregated consumption data from Smart Meter customers at the secondary substation level, along with the count of smart meters contributing to the aggregated half-hourly values. It includes both Active Energy Import and Reactive Energy Import readings.The sample comprises 10,000 records drawn from aggregated smart meter data across our three operational regions: Eastern Power Networks (EPN), London Power Networks (LPN), and South Eastern Power Networks (SPN). To access the historical data covering all sites, where there are more than 5 connected smart meters, please see the attached instructions or click here. Methodological ApproachPrimary consumption data for Active Energy Import is aggregated based on the number of active devices reporting during each half-hour period. If a device is unreachable during a given interval, its data is excluded from the aggregation to maintain accuracy. Quality Control Statement We are conducting monthly validation checks to enhance data quality prior to releasing the full dataset. Users are advised to exercise caution when interpreting or utilising this preliminary data.Please note that smart meter readings rely on accurate hardware installed by energy suppliers. Some devices have known issues with the accuracy of measurements which may impact the aggregate numbers provided. We do conduct sense checks on an invalid readings and may exclude impossible values. Assurance Statement The Smart Metering Team has reviewed the dataset to ensure consistency and accuracy in the presented data. Other Definitions of key terms related to this dataset can be found in the Open Data Portal Glossary: Open Data Portal Glossary Download dataset information: Metadata (JSON)To view this data please register and login.