How much electricity does a home in Cardiff use?

The median home used 2,421 kWh of electricity in 2024, against 2,471 kWh across Great Britain. The mean was higher, 3,063 kWh, because a minority of heavy users pulls an average up; the median is the household in the middle.

How much gas does a home in Cardiff use?

The median home with a gas meter used 9,130 kWh of gas in 2024, against 9,859 kWh across Great Britain. The figures are weather-corrected by DESNZ, so a cold winter doesn’t make one area look worse than another.

What does energy cost for a typical home in Cardiff?

At the price cap for 1 October 2026 to 31 December 2026, a home using the Cardiff medians would pay about £1,693 a year, standing charges included. Your own bill depends on your own use, which is on your bill or in your supplier’s app.

Home energy use

Home energy use in Cardiff

Caerdydd

How much electricity and gas the typical home here uses, from meter readings for every home in Great Britain, and how that compares with everywhere else.

Verified: 23 October 2026 from DESNZ subnational consumption statistics

Where these figures come from

Electricity, median home: 2,421 kWh; a year, 2% less than Great Britain
Gas, median home: 9,130 kWh; a year, 7% less than Great Britain
At today’s price cap: £1,693; a year for the median home

The typical home in Cardiff used 2,421 kWh of electricity and 9,130 kWh of gas in 2024. Against the typical home across Great Britain, that is 2% less electricity and 7% less gas.

Of 350 local authority areas in Great Britain, Cardiff comes 230th for electricity use and 269th of 347 for gas, counting from the highest. These are medians: half the homes here use more and half use less. The mean is higher (3,063 kWh of electricity, 10,534 kWh of gas) because a minority of big users pulls an average up.

What it costs

At the price cap for 1 October 2026 to 31 December 2026, a home using exactly the Cardiff medians would pay about £1,693 a year: £845 for electricity and £848 for gas, standing charges included. The same sum for the Great Britain medians comes to £1,745. These use the South Wales region’s rates.

Cardiff is in the South Wales electricity region. See every region’s rates on energy prices by region.

Your own use is on your bill or in your supplier’s app. Put it into the direct debit checker to see whether you are paying the right amount each month.

Over the last ten years

Since 2015, the typical home’s electricity use here has fallen 19% and its gas use has fallen 14%. The biggest drop came in 2022, the year of the energy price crisis, and use has stayed close to that lower level since.

Electricity, median kWh a year

Gas, median kWh a year, weather-corrected

How does your home compare?

Is my electricity use normal? Your yearly use against homes like yours, by property type, heat pump and electric car.
Electricity smart meter analyser and gas analyser read your supplier’s download and show what your home uses hour by hour, without the file leaving your device.
Heat pump calculator What a heat pump would cost to run against your gas boiler.
Grant checker Including the Boiler Upgrade Scheme, which covers Wales.

Areas with similar use

Harlow2,432 / 9,138 kWh
Telford and Wrekin2,404 / 9,101 kWh
Ipswich2,411 / 9,039 kWh
Bournemouth, Christchurch and Poole2,395 / 9,070 kWh
East Suffolk2,458 / 9,184 kWh

Median electricity / gas, nearest to Cardiff.

Elsewhere in Wales

Common questions

How much electricity does a home in Cardiff use?: The median home used 2,421 kWh of electricity in 2024, against 2,471 kWh across Great Britain. The mean was higher, 3,063 kWh, because a minority of heavy users pulls an average up; the median is the household in the middle.
How much gas does a home in Cardiff use?: The median home with a gas meter used 9,130 kWh of gas in 2024, against 9,859 kWh across Great Britain. The figures are weather-corrected by DESNZ, so a cold winter doesn’t make one area look worse than another.
What does energy cost for a typical home in Cardiff?: At the price cap for 1 October 2026 to 31 December 2026, a home using the Cardiff medians would pay about £1,693 a year, standing charges included. Your own bill depends on your own use, which is on your bill or in your supplier’s app.