A fixed tariff buys price certainty. It does not guarantee a fixed bill, because your bill still moves with usage. This calculator compares a fixed quote with a variable path you control.
No crystal ballYou set the assumptions
Usage basedkWh not monthly DD
Risk viewCertainty versus flexibility
Print readyKeep the assumptions
Normal-person rules
When a fix makes sense
Fix for certainty
If the fixed quote is close to variable and your budget hates surprises, certainty has value even when the saving is small.
Do not fix blindly
A fix can become expensive if prices fall and the exit fee makes switching painful.