We are becoming a separate company

In April 2019, the Electricity System Operator is becoming a separate company within the National Grid Group. Find out more about what this change will mean.

Balancing framework and the Balancing and Settlement Code (BSC)

Here you will find documents required by and relating to our licence, and information about the electricity balancing system (EBS) project.

Balancing and Settlement Code (BSC)

The Balancing and Settlement Code (BSC) contains the rules and governance arrangements for electricity balancing and settlement in Great Britain.

The code covers aspects relating to metering of the physical production and demand for electricity from generators, suppliers and interconnectors against their contracted positions; and calculating and settling the resulting imbalances when the delivery or offtake does not match contractual positions.

The BSC details the framework for parties to make submissions to us, to either buy or sell electricity into/out of the market at close to real time.

The BSC is administered by ELEXON.

Go to the ELEXON website

Performance reports

We publish reports relating to the operation of the electricity transmission system including:

Methodology statements for determination of system-to-system flow

Section R7.5.3 of the Balancing and Settlement Code (BSC) sets out a requirement for the authority to approve these statements. They describe the operational process for determining the system-to-system flow on the relevant GB interconnectors. 

For more information on this, please email us at [email protected].

Balancing Programme update

A new tool for balancing of supply and demand in an increasingly changing world. Automating these services would be a world first.

Find out more

C16 statements and consultations

Statements, guidelines, real-time and historic performance, and price and market data in accordance with Special Condition C16 of the Statements of the Transmission Licence.

Find out more