Who chooses the power?
Consumers establish the power they wish to contract with the company. Likewise, consumers can change the power depending on their requirements however; the distribution company only has to accept one change of power per year.
Thus, you decide the power you contract. But as we are telling you, do so wisely and without pressuring yourself.
How to calculate the power supply you need
The logic for choosing your power is simple: you have to calculate the maximum kW that you're going to require from your grid at any one time. You have to think about what might happen in advance, and think about those situations in which you are going to need to set your home appliances to the maximum. When do you turn more of them on at the same time?
There are some things you’ll be able to give up, and others that you can't. For example, perhaps you can wait to turn on the washing machine, delaying it until things are calmer. Maybe not. For example, perhaps you get too hot in the summer and you need to turn on three air conditioners at the same time while you prepare your food in the oven.
Make your calculations. Your objective is to find the highest number of kW that you’re going to ask of your electrical installation. When you find this number, you’ll know how much power to contract. And remember, if you exceed it, “you’ll blow a fuse”.
Below, you can see the approximate power that each home appliance requires when you turn it on
- Electric heating: 1 - 2,5 kW
- Dishwasher: 1,5 - 2,2 kW
- Washing machine: 1,5 - 2,2 kW
- Oven: 1,5 - 2,2 kW
- Ceramic hob: 0,9 - 2 kW
- Air conditioning (each apparatus or split): 0,9 - 2 kW
- Microwave: 0,9 - 1,5kW
- Low consumption heating: 0,4 - 0,8 kW
- Refrigerator: 0,25 - 0,35 kW
- Television: 0,15 - 0,4 kW
How do you know if you have more contracted power than you need?
To find out if you have more power than you really need, there is an old trick that almost never fails. Turn on all electrical devices in your home. Don't forget the split devices, including the air conditioner, oven and stove burners, if they are electric, even the vacuum. If you turn them all on at the same time, and the circuit breaker doesn't cut, you probably have more power than you need. If the Power Control Switch does not trip, you probably have more power than required.
If this is your case, your electricity bills are unnecessarily high. You're paying for something that you never or almost never use, an excess of kW that is reflected each month in what you pay. It is in your best interest to change the power to lower it; but never do it in a rush, and always take plenty of time to make your decision.
Ask the professionals for help
If you think your power is insufficient, we recommend that you request a technical advice, who will check your property’s records and meticulously assess all the requirements.
The following form includes the category “Advice” under the type of "Query" and the subject is "Questions regarding how much power I need":