If you're looking to work out your new energy outgoings come January, and you pay by direct debit, you can use our online calculator for an approximation of the changes to your bill. To give a ...

When deciding if it's worth installing solar panels, you may want to know when they will start saving you money.

Use the calculator below, developed based on methodologies used by the Mayo Clinic and World Health Organisation, to find out your daily energy requirements, based on your total expenditure levels.