Distribution Network Options Assessment
The Distribution Network Options Assessment (DNOA) is a publication, which outlines reasons behind investment decisions made by National Grid Electricity Distribution in order to deal with constraints that arise across all four of our license areas. It forms part of the National Grid Electricity Distribution investment planning process, as outlined below.
This assessment includes reviewing mitigation options such as demand side response procured through National Grid's Flexible Power, conventional reinforcement schemes and other innovative solutions.
To determine the economically optimal solution, cost-benefit analysis is carried out using the industry standard Common Evaluation Methodology tool, which is described in the DNOA.
By outlining our analysis process stakeholders and customers can be assured that we are delivering an economic and efficient network while maintaining safety and security. The DNOA also works in tandem with Flexible Power in helping inform flexibility providers of the potential for future opportunities to provide flexibility services with signposting data for the next five years. The analysis conducted within the DNOA is based on data from our Distribution Future Energy Scenarios (DFES). We published the first DNOA in Spring 2021 and will be publishing future DNOAs every six months to continue to inform stakeholders, customers and flexibility providers.
- Distribution Network Options Assessment - February 2024
- Alfreton - Wessington Scheme Page
- Ashby + Willesley Scheme Page
- Atherstone Scheme Page
- Berkswell SGT Scheme Page
- Blidworth Scheme Page
- Bretby Scheme Page
- Castle Road Scheme Page
- Checkerhouse Primary Scheme Page
- Chesterfield GSP Scheme Page
- Chesterfield Main Scheme Page
- Clowne Scheme Page
- Coalville Scheme Page
- Copsewood Scheme Page
- Dowsby Fen Scheme Page
- East Midlands Reinforce Scheme Pages
- Ellesmere Avenue Scheme Page
- Grassmoor Scheme Page
- Grendon - Corby Scheme Page
- Hallcroft Road Scheme Page
- Harbury - Banbury 132 kV Scheme Page
- Hawton BSP Scheme Page
- Hinckley BSP Scheme Page
- Holbrook Lane Scheme Page
- Holme Carr Scheme Page
- Hopton - Cromford Scheme Page
- Ilkeston Scheme Page
- Langdale Drive Scheme Page
- Lincoln - Anderson Lane
- Loughborough
- Mackworth Scheme Page
- Manton Scheme Page
- Marlborough Road Scheme Page
- Moira Scheme Page
- New Dove Valley Scheme Page
- North Wheatley Scheme Page
- Northampton East BSP Scheme Page
- Northampton West BSP Scheme Page
- Quorn Scheme Page
- Sharnbrook Scheme Pages
- Shepshed Scheme Page
- Skegby Lane Scheme Page
- Sneinton Scheme Page
- Spondon Scheme Page
- Stamford Scheme Page
- Staythorpe GSP Scheme Page
- Torrington Avenue Scheme Page
- Toton Scheme Page
- Tuxford Scheme Page
- Union Street - Rugby Scheme Page
- Walpole to Spalding Tee Scheme Page
- West Bridgford Scheme Page
- Wingerworth Scheme Page
- Wise Street Scheme Page
- Woodbeck Scheme Page
- Alderton Scheme Page
- Brimscombe Scheme Pages
- Brockworth Scheme Page
- Cowhorn Scheme Page
- Eccleshall Scheme Page
- Epwell Scheme Page
- Feckenham South Scheme Page
- Forsbrook - Simplex Scheme Page
- Hereford - Ledbury Ring Scheme Page
- Hereford BSP Scheme Page
- Hill Chorlton Scheme Page
- Hookgate - Market Drayton Scheme Page
- Knighton Scheme Page
- Lye BSP Scheme Page
- Shrewsbury GSP Scheme Page
- Stockton Scheme Page
- Stowfield - St Weonards Scheme Page
- West Midlands Reinforce Scheme Pages
- Aberaeron Scheme Page
- Abergavenny - Crickhowell Scheme Page
- Ashgrove Scheme Page
- East Aberthaw Scheme Page
- Llandrindod - Rhayader Scheme Page
- Llandrindod Wells Scheme Page
- Llanfoist Scheme Page
- Llanfyrnach Scheme Page
- Milford Haven BSP Scheme Page
- Mountain Ash Scheme Page
- Nantwen Scheme Page
- Newport West Scheme Page
- Pantyffynon Scheme Page
- Ravenhill Scheme Page
- South Wales Reinforce Scheme Pages
- St Davids Scheme Page
- Swansea North - Upper Boat Scheme Page
- Trevaughan Scheme Page
- Barnstaple to South Molton Scheme Page
- Blagdon Scheme Page
- Bridgwater to Bath Road Circuit
- Camborne to St Agnes to Perranporth to Turo Scheme Page
- Camborne Treswithian Scheme Page
- Chewton Mendip
- Core Hill Scheme Page
- Countess Wear Scheme Page
- East Yelland Scheme Page
- Edgarley Scheme Page
- Exeter City Scheme Page
- Exminster Scheme Page
- Feeder Road A Scheme Page
- Feeder Road BSP Scheme Page
- Feeder Road to Bedminster and Bower Ashton Circuit Scheme Page
- Filton Airport and Cribbs Causeway Ring
- Gunnislake Scheme Page
- Hayle - Camborne Scheme Page
- Hayle BSP Scheme Page
- Hemyock Scheme Page
- Honiton Heathfield and Offwell Ring Scheme Page
- Honiton Heathfield Scheme Page
- Isles of Scilly Scheme Page
- Keynsham East Scheme Page
- Laneast Scheme Page
- Moretonhampstead Scheme Page
- Morwenstow Scheme Page
- Mullion Scheme Page
- Newton Abbot to Newton Abbot Main Circuits Scheme Page
- Offwell Scheme Page
- Paignton to Laywell Brixham 33 kV Circuits Scheme Page
- Plymouth - South Hams Scheme Page
- Plympton BSP Scheme Page
- Probus Scheme Page
- Shapwick Scheme Page
- South West Reinforce Scheme Pages
- St Mawgan Scheme Page
- St Tudy to Davidstow 33 kV Circuit Scheme Page
- Stokenham Scheme Page
- Street BSP Scheme Page
- Tiverton to Bridge Mills and Cullompton Circuits Scheme Page
- Tiverton Scheme Page
- Truro - Truro Treyew Scheme Page
- Weston Super Mare Scheme Page
- Witheridge Scheme Page
- Woodland Way Scheme Page
- Yeovil - Coker Tee Scheme Page
- DNOA appendices
- Distribution Network Options Assessment - August 2023
- Distribution Network Options Assessment - February 2023
- Distribution Network Options Assessment - August 2022
- Distribution Network Options Assessment - February 2022
- Distribution Network Options Assessment - August 2021
- Distribution Network Options Assessment - March 2021
To view the old Scheme Page documents, click here.
DNOA Consultation Questions
We would like to receive your views on the Distribution Network Options Assessment (DNOA) using the consultation questions below. Any feedback will help shape future DNOA reports and processes.