CMP357 'To improve the accuracy of the TNUoS Locational Onshore Security Factor for the RIIO2 Period'

The TNUoS Locational Onshore Security Factor is required to be reviewed before the start of the next RIIO-T2 price control period in April 2021. The Proposer is seeking to improve the accuracy of the TNUoS charges parameter by ensuring that the calculated security factor is applied using eight decimal places.