Kitchen energy use depends on the appliance, how often it runs, and whether it serves a household or a commercial operation. The figures below range from UK household electricity measurements collected in 2010–2011 to U.S. household cooking responses from 2020 and modeled U.S. commercial-kitchen benchmarks from 2015. These dates and scopes matter: the numbers are useful reference points, not a single universal current average.
Table of contents
- UK household appliance use
- Household type comparisons
- Small kitchen appliances
- How often U.S. households cook
- Commercial appliance operating assumptions
- Commercial annual energy benchmarks
UK household appliance use
The Household Electricity Survey: A study of domestic electrical product usage monitored appliance electricity use in 250 owner-occupier households across England during 2010–2011. For all households in the survey, the oven accounted for 290 kWh per year, while the cooker accounted for 317 kWh. The hob used 226 kWh per year, and the microwave used 56 kWh.
The kettle was measured at 167 kWh per year across all households. That places kettle use below the annual figures for the oven, cooker, and hob in this survey, but above the microwave figure. These are measured household averages for the stated period, rather than manufacturer ratings or a calculation based on a typical cooking schedule.
The survey separated several household types. A single pensioner household, defined in the report as a single person aged 65 or older, used 267 kWh per year on the oven, 300 kWh on the cooker, 177 kWh on the hob, 44 kWh on the microwave, and 141 kWh on the kettle. A single non-pensioner household used 375 kWh on the oven, 344 kWh on the cooker, 66 kWh on the microwave, and 153 kWh on the kettle. The supplied household-type results do not include a hob figure for the single non-pensioner group.
These results show why an appliance label alone cannot describe household kitchen energy use. The same appliance category appears alongside different annual measurements depending on the household group. The report also cautions that some subgroup and product combinations were based on few measured households, so smaller subgroup results should be treated as sample averages with that limitation in mind.
Household type comparisons
The UK survey also reported results for larger household categories. A multiple pensioner household used 211 kWh per year on the oven, 326 kWh on the cooker, 148 kWh on the hob, 51 kWh on the microwave, and 185 kWh on the kettle. A household with children used 183 kWh on the oven, 313 kWh on the cooker, 259 kWh on the hob, 57 kWh on the microwave, and 167 kWh on the kettle.
For a multiple-person household with no dependent children, the measured annual figures were 396 kWh for the oven, 309 kWh for the cooker, 243 kWh for the hob, 59 kWh for the microwave, and 178 kWh for the kettle. Within the survey categories, that group had the highest reported oven use, while the household-with-children group had the highest reported hob use.
| UK household category | Oven (kWh/year) | Cooker (kWh/year) | Hob (kWh/year) | Microwave (kWh/year) | Kettle (kWh/year) |
|---|---|---|---|---|---|
| Single pensioner | 267 | 300 | 177 | 44 | 141 |
| Multiple pensioner | 211 | 326 | 148 | 51 | 185 |
| Household with children | 183 | 313 | 259 | 57 | 167 |
| Multiple person, no dependent children | 396 | 309 | 243 | 59 | 178 |
| All households | 290 | 317 | 226 | 56 | 167 |
Source: Household Electricity Survey, 2010–2011. The categories are not interchangeable with household-size estimates from another survey, and the table preserves the report’s appliance labels.
The pattern is not a simple progression from fewer people to more people. For example, the household-with-children category recorded 183 kWh per year for the oven, compared with 396 kWh for the multiple-person, no-dependent-children category. The measured cooker values were closer together, from 300 to 326 kWh among the pensioner categories and 309 to 313 kWh in the other listed groups. This is descriptive evidence from one survey period, not a causal explanation of why the categories differ.
Small kitchen appliances
The same UK survey measured several smaller kitchen appliances. Annual use was 52.7 kWh for a food steamer and 52 kWh for a fryer. A coffee machine used 31.8 kWh per year, and a bottle warmer used 27.2 kWh. A bread maker used 23.6 kWh, while a toaster used 21.9 kWh.
Lower measured annual figures included 12.8 kWh for a grill, 11.7 kWh for an extractor hood, and 8 kWh for a yoghurt maker. The food mixer was measured at 0.5 kWh per year. These figures describe average annual use recorded in the English owner-occupier sample during 2010–2011; they do not mean every appliance operated at the same power level or for the same number of hours.
For a quick view, the highest small-appliance values in this group were the food steamer at 52.7 kWh per year and the fryer at 52 kWh. The coffee machine, bottle warmer, bread maker, and toaster were all below 32 kWh per year in the survey. The extractor hood and grill were below 13 kWh, and the food mixer was below 1 kWh. The source’s sample-size warning applies here as well, especially where relatively few households had a particular product.
How often U.S. households cook
The U.S. Energy Information Administration report, “In 2020, most U.S. households prepared at least one hot meal a day at home” describes Residential Energy Consumption Survey responses for 2020. Nationally, 79% of U.S. households prepared at least one hot meal at home each day.
The state figures varied. The share was 88% in Washington and 86% in Maine. It was 69% in Alabama and 68% in Louisiana. These percentages describe households preparing at least one hot meal at home each day; they are not appliance electricity-use measurements and should not be converted into kWh without additional information.
The same EIA source reported that 89% of U.S. households had a range combining a cooktop and an oven. Among U.S. households with a range, the cooktop was used an average of 8 times per week and the oven was used an average of 3 times per week. The EIA figures exclude outdoor-grilling fuel where stated, so they represent the survey’s household cooking scope rather than every possible way a household may prepare food.
Together, these data provide context for appliance-use statistics. A high share of households cooking daily indicates widespread use of kitchen equipment, but cooking frequency is not the same as energy consumption. Appliance efficiency, cooking duration, fuel type, load size, and standby behavior would all be needed to estimate energy from frequency alone, and those additional inputs are not supplied here.
Commercial appliance operating assumptions
Commercial kitchens operate on a different scale. The Energy Savings Potential and RD&D Opportunities for Commercial Building Appliances (2015 Update) uses modeled 2015 U.S. commercial-kitchen benchmarks rather than household measurements.
In the model, a commercial gas broiler operated for 2,496 hours per year and had an 88,000 Btu/hour rated capacity. An electric broiler was modeled at 3,120 operating hours per year and 11 kW. A gas fryer and an electric fryer were each modeled at 5,840 hours per year; their rated capacities were 164,000 Btu/hour and 22 kW, respectively.
The modeled gas range operated for 3,491 hours per year with a rated capacity of 179,000 Btu/hour. An electric steamer operated for 4,380 hours per year at 24 kW. These operating hours are assumptions in a commercial-appliance model, not observations of every restaurant or food-service kitchen.
The difference between household and commercial figures is therefore more than a difference in appliance size. The commercial benchmarks combine rated capacity with many operating hours. They should be used to understand modeled equipment demand and to compare appliance categories within the report, not as a direct estimate for a home kitchen.
Commercial annual energy benchmarks
The DOE commercial-kitchen model assigned annual unit energy consumption using different units for gas and electric equipment. Gas values are reported in MMBtu per year, while electric values are reported in kWh per year.
| Commercial appliance | Gas benchmark | Electric benchmark |
|---|---|---|
| Broiler | 170 MMBtu/year | 24,500 kWh/year |
| Fryer | 158 MMBtu/year | 17,400 kWh/year |
| Griddle | 115 MMBtu/year | 15,800 kWh/year |
| Oven | 80 MMBtu/year | 12,100 kWh/year |
| Range | 147 MMBtu/year | 11,200 kWh/year |
| Steamer | 200 MMBtu/year | 17,600 kWh/year |
The highest modeled gas annual unit energy consumption in this group was the steamer at 200 MMBtu per year, followed by the broiler at 170 MMBtu and the fryer at 158 MMBtu. The gas range was 147 MMBtu, the griddle was 115 MMBtu, and the oven was 80 MMBtu.
For electric equipment, the modeled broiler was 24,500 kWh per year. The fryer was 17,400 kWh, the steamer was 17,600 kWh, the griddle was 15,800 kWh, the oven was 12,100 kWh, and the range was 11,200 kWh. Because the DOE report presents gas in MMBtu and electricity in kWh, these values should not be ranked against one another as though they shared a common unit.
The commercial figures are 2015 modeled benchmarks, not household measurements and not forecasts of future use. The UK results are also historical, measured during 2010–2011, while the EIA household cooking figures describe 2020 survey responses. Keeping those measurement periods, geographies, units, and source types visible is essential when using kitchen energy statistics for planning or comparison.