All interconnectors
Tue 21 Mar- Imported
- 72GWh
- Exported
- 9GWh
- Net in
- 62GWh
- Average net flow
- 2.60GW in
Into Great BritainOut of Great Britain
Great Britain’s electricity on Tuesday 21 March 2023
On Tuesday 21 March, demand averaged 31.6 GW. Renewables supplied 53%.
Price
£106.31/MWh
Day average £106.31
Demand31.6GW
Generation 29.2Transfers 2.4
Fossil fuels21%
Renewables53%
Other26%
Carbon intensityLow
98g/kWh
0Day average 98300
Key moments
On Tuesday 21 March 2023, wind supplied 47% of Great Britain’s electricity and gas 21%. Demand peaked at 37.3 GW at 19:05. Carbon intensity averaged 98 g/kWh and the price £106.31/MWh. Wind generation peaked at 18.8 GW at 23:35. Solar generation peaked at 5.1 GW at 13:00. Carbon intensity was lowest at 23:30 (65 g/kWh) and highest at 18:30 (128 g/kWh). The wholesale price ranged from £53.33/MWh at 22:30 to £148.16/MWh at 05:30. Wind made 53% of the electricity generated in Great Britain, compared with 33% across 2023.
Charts
Generation, demand, price and carbon
0
10
20
30
40
00:0006:0012:0018:00
Solar 1.404.3%Wind 15.4047.4%Gas 6.9221.3%Hydro 0.331.0%Biomass 1.273.9%Nuclear 3.9212.1%
0
50
100
150
00:0006:0012:0018:00
£72.90
0
50
100
150
00:0006:0012:0018:00
65 g
-10
0
10
20
30
40
Demand 24.9Generation 27.5Transfers -2.6
00:0006:0012:0018:00
Demand 31.6avgGeneration 29.2avgTransfers 2.4avg
Peak demand37.3GW · 19:05
Low 22.4 · 03:55Avg 31.60–40 GW
Made in Great Britain93%of demand
Generation 29.2Transfers 2.4 GW
Net imports62GWh
In72
Out9
Zero-carbon share72%of generation
Nuclear 13%Hydro 1%Wind 53%Solar 5%
Transfers · Tue 21 Mar
Interconnectors and storage
On Tuesday 21 March 2023, Great Britain imported 72 GWh and exported 9 GWh through its interconnectors. The most came from France (22 GWh), and the most exports went to France (7 GWh).
Belgium
Nemo LinkAverage0.19GWImporting
-4
-2
0
2
4
00:0006:0012:0018:00
In 5.2 GWhOut 0.7 GWh
Denmark
Viking LinkAverage0.00GWIdle
-4
-2
0
2
4
00:0006:0012:0018:00
In 0.0 GWhOut 0.0 GWh
France
IFA · IFA2 · ElecLinkAverage0.66GWImporting
-4
-2
0
2
4
00:0006:0012:0018:00
In 22.3 GWhOut 6.6 GWh
Ireland
Moyle · East–West · GreenlinkAverage0.21GWImporting
-4
-2
0
2
4
00:0006:0012:0018:00
In 7.0 GWhOut 2.0 GWh
Netherlands
BritNedAverage0.63GWImporting
-4
-2
0
2
4
00:0006:0012:0018:00
In 15.2 GWhOut 0.0 GWh
Norway
North Sea LinkAverage0.91GWImporting
-4
-2
0
2
4
00:0006:0012:0018:00
In 21.9 GWhOut 0.0 GWh
Pumped storage
Dinorwig · Cruachan · Ffestiniog · FoyersAverage0.24GWPumping
-4
-2
0
2
4
00:0006:0012:0018:00
Generated 6.0 GWhPumped 11.8 GWh
All cards share one scale, so you can compare their heights. Each country can have more than one cable.
Download the 5-minute data for this day: CSV · JSON. See what the figures mean.