Skip to main content


For more information, please login.

Please be advised that our website will undergo maintenance on 25 July at 10:00 for approximately 60 minutes. We apologise in advance for any inconvenience caused.

Non-Half Hourly (NHH) Notional Capacity

Standard Rejected


Non-Half Hourly (NHH) Notional Capacity

DCP160 - 'Non-Half Hourly (NHH) Notional Capacity' seeks to revise Schedule 16 (along with appropriate CDCM and ARP Modelling changes) to introduce a notional spare capacity requirement to be applied to the average maximum demand when calculating NHH tariffs. The notional spare capacity should align with the same proportions which are calculated and allocated to Half Hourly (HH) tariffs.