The regulator has delayed the implementation from September 2015 to allow “robust systems testing and market trials” to take place.
The project aims to overhaul the existing GB gas settlement arrangements to make them fit for purpose in a future gas market.
The planned modifications have been developed to ensure the competitive gas market will meet the current and anticipated requirements of participants in the market, as well as supporting the rollout of advanced and smart metering.
The Project Nexus Steering Group (PNSG) were advised by the independent project assurance manager PwC in May this year that the original implementation date was no longer viable due to insufficient time for systems testing ahead of market trials for gas transporters and shipping.
Ofgem has also added a series of milestones to the implementation plan after concerns were raised about the visibility of the implementation plan.