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Technical Operations

Metering

Metering Systems accurately record the flow of electricity. For example, it may record the energy flowing into (import), or away from (export), a site where that energy is being consumed or produced. This recorded data is used by ELEXON to calculate energy imbalance charges for BSC Parties who use more or less energy than they contract to buy, or generate more or less energy than the volumes they contract to sell.

Suppliers and generators, Licensed Distribution System Operators, the Transmission System Operator, Interconnector Administrators and ELEXON also use this data for other charging purposes, both within and outside the BSC arrangements.

What is a Metering System?

A Metering System is made up of items of Metering Equipment; voltage transformers, current transformers, Meters and Outstations, alarms, the wires and connections between each item and connections required to transfer metered data to the outside world (e.g. modems and communication lines). There are two types of Metering System; those which measure and record electrical energy flow for each half hour for Settlement (Half Hourly Metering Systems) and those which measure and record over longer periods of time, from which energy flows in each half hour can be estimated (Non Half Hourly Metering Systems).