How do you calculate the savings?

First, we use the information you gave us on step 1 and 2 to calculate your current annual bill:

If you gave us your consumption in kWh units, we multiply the units by the unit rates of your current tariff to calculate your annual current bill.

If you gave us your consumption in £, we use this to get your annual current bill.

If you couldn’t give us your exact consumption and used our Low/Medium/High buttons to estimate your consumption, then we use the corresponding Ofgem’s Typical Domestic Consumption Values which are:

For Gas:

Low:                     11,000 kWh per year

Medium:             16,500 kWh per year

High:                    23,000 kWh per year

For Electricity single rate meters – the most common type:         

Low:                     2,100 kWh per year

Medium:             3,300 kWh per year

High:                    5,100 kWh per year

For Electricity multi rate meters – e.g. Economy 7 meters where you have a day rate and a night rate:    

Low:                     2,900 kWh per year

Medium:             5,000 kWh per year

High:                    8,300 kWh per year

 

Second, we look at all the tariffs you have access to, and calculate for each your potential future annual bill:

If you gave us your consumption in kWh units, we multiply the units by the unit rates of each tariff you have access to.

If you gave us your consumption in £, we look at your current tariff unit rates and calculate how many kWh units you must have used to reach the amount of £ you have entered. Then we multiply the units by the unit rates of each tariff you have access to.

If you used our Low/Medium/High buttons to estimate your consumption, then we use the corresponding Ofgem’s Typical Domestic Consumption Values given above and multiply the units by the unit rates of each tariff you have access to. Finally, we take each potential future annual bill – the ones you see in the results table – and subtract your current annual bill to determine how much you could save per year.

If you would rather see how much you would save per month, please tick “Monthly cost” at the top of the table.

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