How Much Electricity Does It Take to Boil a Kettle?
It takes about 2 kWh of electricity to boil water in a kettle. This is exceptionally low and takes much less electricity than other cooking methods.
1 Additional Answer
After switching on a Russell Hobbs Satin Montana Kettle Model No. 14150 which is rated as a 3kW kettle, it will start drawing power and will use between 2.81kW and 2.87kW for the first 6 seconds. Boiling a full kettle requires 0.16kWh which is about 2pence while a cup will only take 0.03kWh which is 0.4 pence.