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Whole electricity system planning

Enhanced and coordinated approaches between Transmission and Distribution for data exchange, investment planning and operational planning

ENA Whole electricity systems

Coordination across Electricity T/D (Transmission/Distribution) is a key aspect of Distribution System Operation (DSO). For the past five years, Open Networks has enhanced T/D coordination and implemented change across a range of areas. 

 

This includes:

  • Investment planning - Network Options Assessment (NOA), through which major National Electricity Transmission System (NETS) reinforcements projects to meet the future network requirements are identified and recommend
  • Improvements to Future Energy Scenarios (FES) which represent a range of different, credible ways to decarbonise our energy system as we strive towards the 2050 target
  • Operational planning through enhanced and more coordinated approaches for data exchange between T/D.

Products in this work area are taking learnings from the Regional Development Programmes (RDPs) and Pathfinder projects to inform the development of common approaches that can be adopted by all network companies. 

In addition, we will also undertake work to support a standard approach for DNOs to deliver the new Network Development Plan (NDP) licence obligation.  

Things we're doing this year

We are continuing to improve interactions and co-ordination between electricity transmission and distribution, taking a whole electricity system approach. The project team has identified five areas for development, all of which will continue from 2021:

  • Delivering further alignment between Future Energy Scenarios and Distribution Future Energy Scenarios
  • Reporting on the cost benefit analysis for gaining visibility of Distributed Energy Resources
  • Providing a recommendation and implementation plan for operational and forecasting data sharing between the ESO and DNOs. Sharing real-time operational data with external non network market participants
  • Reviewing and updating the Network Development Plan Form of Statement
  • Reviewing and updating the Whole Electricity System Co-ordination Register-Form of Statement

 

More information on these areas and their progress can be found in the Resource library.

ON21-WS1B-P5 Network Development Plan Form of Statement (19 Aug 2021)

Network Development Plan (NDP) report providing stakeholders with transparency on network constraints and needs for flexibility.

Resource type: Report  File type: PDF   File size: 788.1 KB

ON20-WS1B-P2 Distribution Future Energy Scenario (DFES) standardisation

Greater standardisation of DNO produced DFES and the GBFES through improved NGESO-DNO feedback and alignment of processes.

Resource type: Presentation  File type: PDF   File size: 420.7 KB

ON20-WS1B-P2 Coordination of Future Energy Scenario (FES) and Distribution Future Energy Scenario (DFES)

This slide deck reports updates to the Building Blocks and Information Exchange process following completion of the 2020 GB FES delivery, addressing P2…

Resource type: Report  File type: PDF   File size: 585.0 KB

ON20-WS1B-P3 Operational Forecasting Final Report

Report on Operational Forecasting including the assessment of further data exchange between network companies to improve the delivery of whole system operation…

Resource type: Agenda  File type: PDF   File size: 2.0 MB

ON19-WS1B-P4 Exchange of Network Planning Data (planning timescales) Data Scope - Final Report

Whole Electricity System Planning & T-D Product 4 - Data exchange in planning timescales Data Scope - Final Report

Resource type: Report  File type: PDF   File size: 825.4 KB

ON21-WS1B-P6 Operational DER Visibility and Monitoring Requirements (13 Dec 2021)

DER Visibility and Monitoring Requirements – Use cases, Volumes, and Functional Specifications

Resource type: Report  File type: PDF   File size: 1.9 MB