Gas and Electricity in Merthyr Tydfil - SSE, British Gas & More

Merthyr Tydfil Castle

Merthyr Tydfil, or simply 'Merthyr' as it is commonly referred to as, is a town in Wales in the county of Mid Glamorgan. It was once the largest town in Wales; however, it is now the 10th largest urban area. It has a population of around 59,280 people. Merthyr's main 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 Merthyr Tydfil

Western Power Distribution

Emergency Number - 0800 6783 105

Non-emergency - 0800 096 3080

Wales & West Utilities Merthyr Tydfil

Wales & West Utilities

Emergency Gas Number - 0800 100 999

Emergency Number - 0800 912 29 99

It is worth noting that if you are experiencing a power cut, your energy supplier can't do anything for you. You should contact your DNO, Western Power Distribution, using the contact information above. You can also click the link below to follow live updates.

View live power cuts in your area

Average Energy Usage by City

Electricity - 830 kWh = £140

Gas - 5488 kWh = £278

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

Despite having been able to choose your energy supplier in England and Wales since 1990, many areas still seem to have a natural affinity towards their incumbent and historically link suppliers. This is the case in Merthyr, where the most popular supplier is SSE.

Merthyr's most popular supplier, SSE

Merthyr Tydfil Energy Offices

A short 11.5 mile journey from the centre of Merthyr Tydfil is the head office for energy management company 'RUMM' in Ystrad Mynach. If you are intersted in working for RUMM click here to view their careers page.

Energy management Merthyr Tydfil

Tredomen Park
Tredomen Gateway
Ystrad Mynach
CF82 7EH



Before privatisation in 1990, Merthyr Tydfil was supplied by 'South Wales Electricity Board'. After this point, when the market was liberated, the company went private and was acquired by SSE in 2000. This branding is still in use and is one of the 'big six' energy companies in the UK.


Before it became a region of the British Gas Corporation in 1973, the gas in Merthyr Tydfil came from 'Wales Gas Board'. The company was formed in 1948.

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