25% of the energy consumed in the United States is spent in our homes. Isolated houses consume more energy with more floors, and the average expenditure per capita is 980 dollars per year. The heating is what consumes the most energy and appliances on standby exceed 3% of the total.
In The United States, there are 17 million occupied dwellings. They are our homes and spend energy, lots of energy. How much? Discussions on the future of the energy market are frequent, but there is always one who intervenes regardless of the data.
The HES (public institute under the Ministry of Industry) has published the most comprehensive study on the subject to date. 9,000 interviews and 600 actual measurements, serves to answer many questions and shed light on our energy consumption:
Our homes consume a fifth of all energy consumed in The USA (and a quarter of the electricity).
23 bulbs in every home and spending 980 dollars per year
- 8.3 are incandescent (“traditional”).
- 7 are of low consumption.
- 6.1 are halogen.
- 1.3 fluoresce.
- LED lamps represent a mere 0.01, i.e., there is one per 100 households.
An American home consumes annually 9,922 kilowatt-hours (kWh), equivalent to 0.85 tons of oil.
Not all consume the same. Single family homes (detached houses) double the energy expenditure (15,523 kWH annual average) of the flats and apartment blocks (7,544 kWh). And of course consumption increases in continental cold areas (12,636 kWh) and decreases in the Atlantic (9,293 kWh) and Mediterranean (8,363 kWH).
How much money are we talking about? An American house spends on average 980 dollars a year on energy. The main expense is heating, which usually represents half of all consumption and in an isolated house in a cold area can reach 71%.
So we spend energy in our homes:
- A heating annual average of 5,182 kWh.
- Appliances: 1,924 kWh.
- Hot water: 1.877 kWh.
- Kitchen: 737 kWh.
- Lighting: 410 kWh.
- Air conditioning: 170 kWh.
Appliances consume and trap more standby
These are the devices that consume more in our homes:
- Refrigerator: 662 kWh per year.
- Deep Freeze: 563 kWh.
- Television: 263 kWh.
- Washing: 255 kWh.
- Dryer: 255 kWh.
- Dishwasher: 246 kWh.
More than half of those interviewed by the HES did not know what was the energy rating of your appliances, and many ignore the expense of them have devices that are not on but still plugged (in standby mode).
A television does not emit images but with its illuminated red light, the flashing clock a stereo that is not ringing … These unnecessary costs represent 231 kWh per year per house: 2.2% of all our consumption. To get an idea of this stupid waste, it suffices to say that is the same annual consumption of the oven and much more than the computer (172 kWh).
Consumption per hour
- Washing machines: rush hour between 10 and 13 hours and between 19 and 21 hours. On holidays and in summer the consumption is concentrated in the mornings.
- Dishwasher: rush hour lunch and dinner, especially in the evenings of working days.
- Refrigerators: have a very linear consumption, but open its doors produces three small peaks in the hours of breakfast, lunch, and dinner.
- Standby mode: equipment spending “off-but-lit” focuses on the nights of the holidays and in the evenings and mornings working.
What appliances are in our homes?
Television is the most widespread: they have 93% of households (nearly 38 million TVs in our country).
Almost all also has a refrigerator, microwave, and computer. 77% have ovens, dishwashers 53% and only 28% dryer. 49% of households have an air conditioning system.