Energy codes
IGT138V Performance Assurance Techniques and Controls
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This is the Authority decision on IGT138V which seeks to provide an effective framework for the governance of industry performance that gives industry participants mutual assurance in the accuracy of settlement volume allocation.
Main document
[IGT138V Authority Decision [PDF, 130.58KB]
](https://www.ofgem.gov.uk/sites/default/files/2022-07/IGTUNC138v%20Authority%20Decision.pdf)