Market strainElevatedUK gas in store 49% of usual for the date; EU gas storage 72% full, 17 points below usual
Warnings in force0of 4 steps
No warnings in force. The last one was on Monday 9 November. If supply gets tight, the steps below light up in order.
STEP 1 OF 4INACTIVE
Electricity Margin Notice or Capacity Market Notice
Supply is tight. Nothing for you to do. Power stations are being asked to produce more.
→
STEP 2 OF 4INACTIVE
Demand Flexibility Service
You may be asked to use less. Some households are paid to cut back at peak times. It is voluntary.
→
STEP 3 OF 4INACTIVE
High Risk of Demand Reduction
Power cuts are possible. Charge phones and power banks. Check on anyone who relies on powered equipment.
→
STEP 4 OF 4INACTIVE
Demand Control Imminent
Power cuts within 30 minutes. Expect to lose power for a time. Follow your network operator's advice.
How much spare power is expected each day?
Spare power at the busiest time of day (early evening), after the safety reserve. Taller is safer.
Spare power over the next 12 hours
Updated every half hour. It dips when demand is high, usually 4pm to 7pm.
How to read thisGreen bars well above the dashed line mean plenty of spare power. A bar below the line means supply is tight that evening. Tight does not mean power cuts: it means the grid operator may start issuing warnings.
How reliable is it?Over five years, when the forecast showed more than 6 GW spare two days ahead, supply was almost never tight. Further ahead it tends to look better than it turns out, and it has missed some tight days, so the four warning steps above are the firmer signal.
What is market strain?How stretched the market looks: power and gas prices against their own last 90 days, and gas in store in the UK and Europe against the same date in earlier years. High strain means less cushion if something goes wrong. It is not a forecast of power cuts.
Dashed edge: planned, or placed at the district centre.
Map display
Boundaries: Office for National Statistics, OGL v3. Postcode areas are approximate.
Power cuts: last 7 and 30 days
Unplanned incidents only, by the day they started (UTC). SP Energy Networks publishes no customer counts.
Incidents opened per day
UKPNNGEDNPGSPENSSEN
Customers affected per day (max reported per incident)
UKPNNGEDNPGSPENSSEN
Customers off supply over time (unplanned, per poll)
UKPNNGEDNPGSPENSSEN
Duration of closed incidents, hours
median90th percentile (one in ten lasts longer)
Incidents opened per day
UKPNNGEDNPGSPENSSEN
Customers affected per day (max reported per incident)
UKPNNGEDNPGSPENSSEN
Customers off supply over time (unplanned, per poll)
UKPNNGEDNPGSPENSSEN
Duration of closed incidents, hours
median90th percentile (one in ten lasts longer)
Electricity and gas system
Wind output, % of normal for the time of year
daily7-day average
Cold: heating degree days above (+) or below normal
daily7-day average
Gas share of generation, %
gas sharenormal (same weeks, previous 3 years)
Net imports through interconnectors, GW (daily average)
daily7-day average
GB power price, £/MWh (Elexon market index)
daily, volume-weighted market index90-day median
UK gas in store by gas year (Oct to Sep), TWh
2021/222022/232023/242024/252025/262026/27
EU gas storage, % full by gas year (AGSI+)
2021/222022/232023/242024/252025/262026/27
Gas and power prices, £/MWh
gas (SAP)power (market index)
Daily data to 9 November 2026. Wind and gas share from Elexon generation by fuel; temperature is the Met Office Hadley Centre Central England series, with normal as the 1991 to 2020 average; a heating degree day is a degree below 15.5°C. Net imports are flows on the interconnectors, imports less exports; below zero Britain is exporting. Gas price is the system average price.
National detailPower cutsNational electricity and gas supply
Power cuts
GREEN · Normalas of 2026-11-10 23:31 UTC (0 min ago)
Customers off supply
5,126
24 h +1,863 · 7 d +3,034
Open unplanned incidents
60
24 h +11 · 7 d +10
Opened in the last hour
10
Largest open incident
1,311 customers
Planned outages open
13
Outage history held
14 days
Covers the operators listed under By operator; Electricity North West is not collected. SP Energy Networks publishes no customer counts.
Unplanned incidents first seen per day
By operator
Operator
Open unplanned
Customers
Planned open
Time last poll
SSEN
18
3,189
2
10 Nov 23:31
NGED
12
1,223
9
10 Nov 23:31
NPG
4
359
1
10 Nov 23:31
UKPN
22
355
0
10 Nov 23:31
SPEN
4
0
1
10 Nov 23:31
Largest open incidents
Operator
District
Customers
Time started
Cause
SSEN
SL4
1,311
10 Nov 13:12
–
NGED
CF5
1,057
10 Nov 23:05
HV GENERIC
SSEN
SN4
759
10 Nov 12:04
–
SSEN
SL2
750
10 Nov 17:40
–
NPG
BD17
233
10 Nov 20:06
The power cut affecting your property has been caused by an unexpected
UKPN
TN34
176
10 Nov 13:54
A fault has occurred on an underground electricity cable affecting the
SSEN
RG9
104
10 Nov 18:40
–
NPG
NE15
98
10 Nov 23:12
The power cut affecting your property has been caused by an unexpected
UKPN
BN24
98
10 Nov 13:33
We're investigating a high voltage overhead electricity line fault whi
UKPN
RH4
70
10 Nov 17:56
We are aware of an incident caused by 11kV OH Fault affecting the elec
AMBER · Elevatedas of 2026-11-10 22:30 UTC (1 h 1 min ago)
National demand
28.7 GW
Wind share of supply
12.3 %
Gas share of supply
64.1 %
Net imports share
-5.8 %
Carbon intensity
228.0 g/kWh
Power price, 2026-11-09
290.5 £/MWh
Price vs 90-day median
1.9 x
GB medium-range gas store vs prior years
65.5 %
No margin notices are collected yet. Status is a proxy: AMBER when the daily power price is at least 2x its 90-day median or GB medium-range gas in store is below 80% of prior years for the date.