Category:Electric power companies of the United Kingdom

• Electric power companies of England‎ (1 C, 42 P)
• Electric power companies of Northern Ireland‎ (4 P)
• Electric power companies of Scotland‎ (2 C, 14 P)

+

• Electric power companies of the Crown Dependencies‎ (1 C)

C

• Centrica‎ (1 C, 15 P)
• Community electricity generation in the United Kingdom‎ (7 P)

D

• Defunct electric power companies of the United Kingdom‎ (50 P)

E

• Electric power distribution network operators in the United Kingdom‎ (1 C, 7 P)

H

• Hydroelectric power companies of the United Kingdom‎ (1 P)

N

• Nuclear power companies of the United Kingdom‎ (7 P)

T

• Tidal power companies of the United Kingdom‎ (6 P)
• Electric power transmission system operators in the United Kingdom‎ (2 P)

W

• Wind power companies of the United Kingdom‎ (2 C, 5 P)

B

• Bayford & Co
• Berkshire Hathaway Energy
• BES Utilities
• Bristol Energy
• Bulb Energy

C

• Central Electricity Generating Board
• Centrica
• Co-op Energy

D

• Drax Group

E

• E.ON UK
• East Midlands Electricity
• EDF Energy
• Electricity Act 1957

F

• Flow Energy

G

• 100Green

I

• Infralec
• Integrated Utility Services UK

L

• London Electricity Board
• London Hydraulic Power Company

M

• Mendip Power Group
• Midlands Electricity

N

• North Eastern Electricity Board
• Northern Electric
• Northern Powergrid
• NORWEB
• Npower (United Kingdom)

O

• Octopus Energy
• Opus Energy
• Outfox the Market
• OVO Energy

P

• Public electricity supplier

R

• Robin Hood Energy

S

• Seeboard
• Shell Energy
• Smart Metering Systems
• South Somerset Hydropower Group
• Southern Electric
• SP Manweb
• SSE Thermal
• SWEB Energy

T

• Telecom Plus
• Tokamak Energy
• TotalEnergies Gas & Power

U

• Utilita Energy

V

• Vattenfall UK