I saw an executive, supposedly an expert in **energy efficiency** Y **sustainability**, on television the other day. He said that he could not fall asleep because of the problem that the **cryptocurrencies** they are consuming a lot of energy on the planet. The impeccable type, tie, shirt and suit, no doubt neatly pressed.

I wondered if he had any idea how much energy we spend on ironing clothes? Sure, maybe my reflection was absurd, but let's do the numbers.

## How much energy do we use to iron clothes?

Suppose that not the whole planet irons their clothes, but 20% of the population, that is 1.6 billion people, and suppose they iron a couple of clothes a day. That is, about 3 minutes a day per person.

Suppose also that the average power of an iron is 1kW.

Let's make the calculations with these assumptions, maybe they are risky numbers, but the 20% of the population does not seem like a very far-fetched estimate to me. We are not here showing accuracy either, but at least being in the same order of magnitude as the problematic helps to get an idea.

Energy consumed per day = 1.6 billion people x 1kW x 3 minutes x 1 hour / 60 minutes.

The grand total is 80 GWh (Gigawatt hours) each day.

Now let's calculate in a year. 80 GWh x 365 = **29,200 GWh**

This figure is monstrous. So monstrous that **It is a figure comparable to all the energy that a country the size of Ecuador needs**, which consumes approximately 26,000 GWh per year.

They imagine? And the guy there wearing his ironing board. Well, it's not like I can play the saint either. We all wear ironed clothes from time to time, some more, some less. But it is enough to think, right?

To keep thinking I leave you a table with the most common electrical appliances, maybe you can make a similar calculation to the previous one and restrict certain habits.

## Average power of common electrical appliances

Artifact | Average Power (in Watts) |
---|---|

Computer | 300 |

Microwave | 800 |

32 inch LED TV | 45 |

42 inch LED TV | 70 |

Hair dryer | 1000 |

Iron | 1000 |

Air conditioner 18000 BTU (not inverter) | 1000 |

Electric oven | 1500-2500 |

Blender | 300 |

Medium refrigerator | 300 |

Electric shower | 1500-2000 |

Clothes washer (without water heating) | 600 |

Vacuum cleaner | 700 |

Coffee maker | 800 |

3/4 HP water pump | 560 |

Fan | 180 |

Toaster | 700 |