Energy Firms Maths Error Means You Could Have Been Overcharged

Energy firms just don’t seem to be able to get their shizzle together do they?

This time, a simple mathematics mistake has lead to thousands of customers paying up to three times more for their gas.

Here is what has happened and who has been affected.

What went so wrong?

Mixing up measurements from older imperial meters with modern metric ones.


Ofgem, the energy regulator has ordered gas suppliers to refund any affected customers.

The problem came to light when E.On made the discovery that 350 of its customers had been overcharged.

E.On have confirmed that compensation will be worked out on an individual basis.

Those who have been overcharged are people with imperial meters – which measure gas use in hundreds of cubic feet.

They have been charged as if they had used cubic meters instead.

If you’re with E.On, they will be in contact with you by Friday if you have been affected.

It’s worked out nicely for some

Yes, some lucky buggers have actually ended up being undercharged, but they will not have to pay the difference back.

E.On says they have identified at least 250 people in that position.

They have saved around 65% off what they should have paid.

If you fall into this category it’s worth preparing for the increase in your bill to make sure there is no nasty surprises come winter time.

Ofgem believes the number of people to have been affected will be in the “several thousands” bracket.

As a result of the findings, Ofgem has also contacted all the other energy firms to identify any customers of theirs who could have been affected.

They have until Friday to do so.


As with every epic balls up, compensation will be due to those who’ve been affected.

Ofgem says the mistake is human error and customers themselves do not have to take any action.

E.On have at least confirmed the 350 people who had been overcharged would be refunded in full, “plus interest and appropriate compensation”.

Trade body Energy UK is said to be working hard to address the issue.

“Any customer affected will be contacted shortly by their supplier and where there has been overcharging, a refund will be issued as quickly as possible,” it added.

Final word

Well, it really is a comedy of errors.

Compensation is one thing, but nobody is actually saying much of the strain it must have caused these poor people trying to keep up with astronomical bills through no fault of their own.

Only time will tell just how “appropriate” the compensation is to be.

Have you ever had billing problems with energy firms?

Related Articles:

The Ultimate Cheat Sheet On Energy Bills

10 Simple Ways To save on Energy Bills

Thinking Thrifty

Thinking Thrifty

David Naylor is the editor of the Thinking Thrifty blog. An award winning personal finance and lifestyle blogger, he shows how it is possible to live extremely well for less.
Thinking Thrifty
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