Glossary Term: Net Imbalance Volume
Acronym: NIVj
The System Sell/Buy Price information for each Settlement Period includes the Net Imbalance Volume. The Net Imbalance Volume represents the sum of all of the system and energy balancing actions for the Settlement Period (including pre-Gate Closure actions reported in BSAD), netted off to give the energy imbalance of the overall system.
BSC defined definition
For each Settlement Period, the Net Imbalance Volume is the volume of the overall System energy imbalance, as a net of all System and energy balancing actions (including BSAD) taken by the Transmission Company for the Settlement Period. Determined in accordance with Section T.