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News 29 May 2025

Kitchen Energy Savings Advice


Appliances cost per hour

Appliance 

Kilowatt-hour 

Cost per Hour 

Oven 

2.1 kWh 

73 cent 

Grill 

1.5 kWh 

52 cent 

Electric hob 

2 kWh 

70 cent 

Microwave 

1 kWh 

35 cent 

Dishwasher 

1.5 kWh 

52 cent 

Toaster 

1 kWh 

35 cent 

Kettle** 

3 kWh 

14 cent / 2 mins x 4 times a day 

Air fryer 

1.3 kWh 

45 cent 

Slow cooker 

0.16 kWh 

6 cent 

Coffee machine 

0.8 kWh 

28 cent 

Rice cooker 

0.5 kWh 

17 cent 

Blender 

0.5 kWh 

17 cent 

*The costs shown are based on Electric Ireland's standard 24-hour rate of €0.3475 per kWh (non-smart), including VAT as of November 2024. Final electricity bills include an annual standing charge and PSO payment. Appliance costs are estimated based on hourly continuous use. Actual costs may vary with usage patterns.

**Kettle: Estimated cost of 14 cent is based on 2 mins x 4 times a day of usage at 3000 watt/hour and an electricity rate of €0.3475/kWh.

Energy advice 

  • Cook efficiently: Where you can, cook with lower wattage appliance such as an air fryer or slow cooker. It also helps to plan meals and batch cook.

  • Dishwasher: Fill the machine correctly and only run when full. Also consider air drying dishes when possible. Use the eco setting on your dishwasher.

  • Fridge-gazing: Did you know that leaving the fridge door open for just 1 minute can take 10 minutes to cool back down? This can waste over 100kWh of energy a year, which is like vacuuming for 3 days straight. So, try to keep fridge-gazing to a minimum.

  • Microwave: Avoid using them to defrost food; instead defrost overnight in your fridge.

  • Kettle: If you’re making a quick cuppa, only boil the amount of water you need.

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