Advice groups warn some people could be paying hundreds of pounds more than they should be.
Projections about where the people of Wales will live in the future show a big increase in homes with several adults but no children.
We've put together a list of 10 tips to help you save money on your fuel bills
Gary Day, a retired engineer from Abergavenny, has saved himself and three neighbours more than £2,300 after discovering their meter clocks were wrong by several hours. Tariffs such as Economy 7 and Economy 10 offer customers a lower rate for electricity during some hours.
Nearly four million households across the UK are reliant on tariffs, according to the consumer watchdog Which? Mr. Day told Which? "I have only checked four meters and every single one of them was wrong. I am horrified that there might be others that have these clock errors and don't realise it."
Mr Day and his neighbours were all on time-of-use tariffs with Swalec. A spokesperson from the company offered to recalculate any charges for customers whose meter clock is incorrect.
"We will always make sure our customers are not left out of pocket. If anyone suspects their meter clock may be incorrect, or would like us to check, please give us a call on 0800 975 8317."
Just 1 out of every 10 parents in Wales feel ashamed asking for help with money problems.
According to a survey by Action for Children, that's less than the UK average, where 1 in 5 feel embarrassed to seek financial help.
The survey of more than 2,000 parents across the UK also found one in three (28%) of parents in Wales had asked for advice about personal finances or debt, compared with one in four (24%) of parents in England.
Despite the results the charity says Wales has some of the highest levels of poverty and deprivation in the UK.
A retired engineer from South Wales says he has saved himself and three neighbours more than £2,300 after discovering their electricity meter clocks were wrong.
Gary Day said two replacement meters failed and he was wrongly told his clock would automatically adjust to British Summer Time.
His neighbour Andrew Murphy claimed back around £800 after discovering his clock was about three hours out.
Certain tariffs offer customers a lower rate for electricity during some hours and a higher rate for others.
Consumer group Which? is now warning up to 3.9 million households reliant on these tariffs could be paying too much due to the incorrect meter clocks.
Regional unemployment fiugures between October and December were as follows:
- North East: 130,000 (minus 3,000) 10%
- North West: 277,000 (minus 6,000) 8.1%
- Yorkshire/Humber: 240,000 (minus 8,000) 8.6%
- East Midlands: 162,000 (minus 4,000) 6.9%
- West Midlands: 226,000 (minus 31,000) 8.3%
- East of England: 180,000 (minus 1,000) 5.7%
- London: 351,000 (minus 25,000) 8.1%
- South East: 233,000 (minus 37,000) 5.1%
- South West: 177,000 (plus 3,000) 6.5%
- Wales: 105,000 (minus 12,000) 7.1%
- Scotland: 195,000 (minus 3,000) 7.1%
- Northern Ireland: 64,000 (plus 1,000) 7.4%
Carwyn Jones has welcomed the news that the unemployment rate in Wales is now below the UK average.
The First Minister says the latest figures are "clear evidence" for their success of Welsh Government policies.
Unemployment is now lower in Wales than the UK as a whole.
Youth unemployment is also below the UK average, with a dramatic 22.5 per cent reduction in the number of 16-17 year olds without work in Wales over the past 12 months compared to a drop of just 1.2 per cent in the rest of the UK.
– Carwyn Jones, First Minister
These figures are clear evidence that our policies are ensuing our economic recovery is faster and stronger than in the rest of the UK.
The announcement by Pinewood Studios earlier this week shows that Wales is now seen as the default location for quality inward investment projects. We will continue to build on this success and continue to provide practical and effective support to grow businesses in Wales.
The unemployment rate in Wales is now below the UK average.
While the jobless rate here has fallen from 7.2 per cent to 7.1 per cent - it has gone the other way for the UK as a whole, according to official figures released today.
In the final three months of 2013, 105,000 people were out of work in Wales - a drop of 12,000 from the previous three-month period.
The Welsh Government says nearly a billion pounds has been lost to the Welsh economy as a result of benefit changes brought in by the UK Government in Westminster.
But Wales Office minister Stephen Crabb has hit back, claiming nearly 200,000 people in Wales have never worked.
He also says the Welsh Government has a 'blind spot' when tackling welfare dependency.