Gas and Electricity in Cardiff - SSE, British Gas & More

Cardiff Mermaid Quay

Cardiff is the capital of Wales and the main cultural and commercial center of the country. With a population of around 357,200 people, Cardiff is the 9th largest city in the UK. Its incumbent suppliers are SSE for electricity and British Gas for gas.

DistributionDistribution Network Operator (DNO): Western Power Distribution
Gas Distributor: Wales & West Utilities

Western Power Distribution Logo

Western Power Distribution

Emergency Number: 0800 6783 105

Non-emergency: 0800 027 0072

Wales & West Utilities Logo

Wales & West Utilities

Emergency Gas Number: 0800 100 999

Emergency Number: 0800 912 29 99

Power cut?

Remember, your energy supplier can't do anything. It's the responsibility of your Distribution Network Operator, Western Power Distribution, to resolve these issues. You can contact them using the above info or follow live updates via the link below

Average Energy Usage by City

Electrcity: 747 kWh = £126

Gas: 2730 kWh = £138

Source: Over three month period, via British Gas's UK Energy Consumption Checker.

SSE logo

For quite some time now, the UK has had free choice of energy supplier, leaving us with quite an advanced market in comparison to many other countries in the world. However, many of us still opt for our incumbent and historically rooted supplier. The most popular supplier in the Cardiff area is SSE.

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Cardiff Energy Offices

Just 15 short miles from Cardiff lies Newport, the home of gas transporter Wales and West Utilities. If you are interested in a career working for Wales and West Utilities, visit their careers page.

Wales & West Utilities office in Newport
Wales and West Utilities
Wales and West House
Spooner Cl
Celtic Springs
NP10 8FZ



Before privatisation, the electricity in southern wales, including Cardiff, was supplied by the former South Wales Electricity Board. The company was formed in 1948 as a public sector electricity distributor; however, after 1990, the company were forced to go private. The South Wales Electricity Board was eventually acquired by SSE in 2000 who continue to use the same branding for the sale of energy to Wales today.


From 1948-1973, the gas supply in Cardiff was provided by 'Wales Gas Board' until it became a region of the British Gas Corporation.

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