Ovens can use a lot of energy depending on the temperature set, most cooking is done at 100 to 230 degrees Celsius . Ovens use 1000 to 5000 watts, with an average modern oven using around 2400 watts on medium to high heat.
See the energy consumption of an Oven using 2400 Watts for 1 hour a day @ £0.19 per kWh
Cost Per Hour: £0.4560
Cost Per Day: £0.4560
Cost Per Month: £13.87
Cost Per Year: £166.46
kWh Per Day: 2.40
Tip:To save energy when using the oven try to cook in batches, cook more food and freeze or refrigerate the leftovers. Avoid opening the oven door unnecessarily, heat loss will require the oven to heat up again and waste energy. Cut food into smaller portions so it will cook faster, also you can defrost most frozen foods before placing them in the oven to cook. If you are using an older oven, consider upgrading to a more energy efficient modern model.