NESO live dashboard

Last rebuilt 21 Apr 2026, 05:29 UTC
Carbon intensity
77 gCO₂/kWh
latest HH · 21 Apr 04:00
Low-carbon share
74.2%
nuclear + renewables + low-C imports
ND last outturn
28,141 MW
SP 17 · 20 Apr
Group 1

System load

National & transmission demand, embedded renewables, interconnector flows · last 14 days.

National & Transmission System Demand

Actuals only · half-hourly.

Embedded wind & solar output

Actuals + 7-day forecast · half-hourly.

Interconnector flows (stacked)

Signed MW · + = import to GB.

Group 2

Generation mix

Fuel-level mix and carbon intensity · last 7 days.

Fuel-level generation mix

All sources stacked · half-hourly.

Carbon intensity & low-carbon share

gCO₂/kWh (left) and low-carbon % (right).

Group 3

Ancillary services — requirements

Response (DC, DM, DR, SFFR) and Reserve (QR, SR, BR) forecasts. National only — these services are not zonally split.

Response-service requirement over time

DC / DM / DR / SFFR · MW per 4-hour EFA block · rolling window of last 4 days + next 7. Click legend entries to hide/show individual services.

Reserve services · positive & negative requirements

QR / SR / BR · solid = positive, dotted = negative.

12-month DX requirement (probabilistic)

Mean ± P10/P90 from the latest forecast vintage.

SFFR — daily requirement vs cleared

Sum across EFA blocks · accepted bids only · last 90 days.

Group 4

Procurement (EAC · by unit)

Cleared response/reserve volumes from the EAC platform — pivoted by technology, service, geography and participant. Last 30 days.

Cleared MW by technology

Sum of cleared volumes per delivery day.

Cleared MW by service type

Same data, pivoted by service.

Provider sites · postcode map

Bubble per site · size = total cleared MW. Use the Service buttons to isolate a single service, or the Tech buttons to isolate one technology type. Click "All" to reset.

Top 20 participants

League table by cleared MW (last 30 days).

Group 5

Demand Flexibility Service

Regional delivery footprint across the 14 DNO licence areas.

Delivered MW by DNO region · last 12 months

Aggregated across every DFS event in the window. Ordered roughly north-to-south; colour intensity tracks MW.

Source: NESO Data Portal · postcode geocoding via postcodes.io · built static at 21 Apr 2026, 05:29 UTC.