Coronavirus Demand Suppression

Update frequency


Last updated




Project Overview

Data showing the demand suppression attributed to the Coronavirus Pandemic. Demand suppression is calculated by taking the National Demand + Embedded Generation outturns and comparing this with the modelled demand assuming no Coronavirus pandemic given the same model parameters (day of week, temperature, etc.).

This is split into various periods of the day (timings are half-hour ending): + Night: 00:30 to 07:00 (Trough) + Morning: 07:30 to 13:00 (Peak) + Afternoon: 13:30 to 16:30 (Trough) + Peak: 17:00 to 20:30 (Peak) + Evening: 21:00 to 00:00 (Peak)
It also shows the overall suppression (Whole Day).

Demand drops over bank holidays are capturing both the pandemic effect as well as the effect of the bank holidays themselves which under normal conditions cause drops in demand also. We do not have sufficient data to separate these effects.

This methodology works at a national level with a linear model using least squares regression and cannot be adapted for use in our regional time-based demand models.

In agreement with Ofgem & BEIS we are ceasing the publication and reporting of the demand suppression assessment with effect of 19 May 2021.

Data on demand suppression was being calculated using a comparison with pre-COVID demand levels, and we can no longer be sure that any changes are attributable to COVID alone.

We hope that you found the ESO's assessment of the demand suppression insightful and useful.

Coronavirus, Demand, Subscribable, Surpression
Key Value
Update Frequency Daily

Access and Licensing

Access conditions

Any controls, requirements, or pre-requisites surrounding access to data

Licence conditions


Data Quality

Aggregation Method

Any controls, requirements, or pre-requisites surrounding access to data

Organisational Lineage

The licensing conditions controlling access to the data


Considerations, risks, and constraints around making assumptions based on specific datasets. e.g data health score

Confidence Level

The level of confidence associated with a specific dataset


The units in which energy is described within a dataset

Related Dataset from National Grid ESO (view all)

National Grid ESO (NGESO) trades on interconnectors to adjust the flow of electricity into or out of Great Britain...

The dataset contains national wind forecast over a day ahead timescale as well as all historic day ahead wind...

As part of Clean Energy Package (CEP) 6.9 we will be running daily auction for procurement of Short Term Operating...

Other Datasets tagged surpression, demand, coronavirus, subscribable (view all)

The dataset contains national wind forecast over a day ahead timescale as well as all historic day ahead wind...

This dataset contains national electricity demand forecast for day ahead as well as all historic day ahead demand...

This section contains historic electricity demand, interconnector, hydro storage pumping, Non-BM Short Term...

National Grid ESO

The electricity distribution network operator for the Midlands, South Wales and the South West.

View all Follow Message



Historic Coronavirus Effect Graphs

Graph showing the demand suppression of the Coronavirus pandemic in two monthly sections with one month overlap. The graphs cover the period from March 2020 to current day. This file is updated daily.


Current Coronavirus Effect Graph

Graph showing the current demand suppression of the Coronavirus pandemic from the beginning of the previous month to today. This is updated daily.


Coronavirus Demand Suppression

Demand suppression data covering the period from 16 March 2020 to current day. It shows both daily overall suppression and variations for different periods throughout the day. It is updated daily.