energy management and communications. That is, a way to improve our well-being.
If we domotize, for example, air conditioning, we can handle it remotely or even turn it off automatically when the system detects that there is no one in a certain room .
But it is also a way to improve our economy, to save those essential euros that escape through the window and could be in our current account. How? Through energy efficiency and strict control of habits. We tell you
Following the road map marked by CEDOM (Spanish Association of Domotics and Inmotics), there are a handful of ways to save. As far as lighting is concerned, nothing better than adapting the levels depending on the variation of sunlight, reducing it in areas of passage and focusing it on the common ones, in addition to using LED lamps, based on diodes of high resistivity and low consumption.
A “saving” bulb consumes approximately 75% less energy and lasts up to 10 times longer than an incandescent bulb . The solution, therefore, goes through the automation of on and off, draining every extra second, as do the smart faucets with photoelectric sensors.
In the case of household appliances, the best solution is through a sequencer on which we can program its operation according to the times when the price of energy is lower. Thus, the standby mode will be activated in the periods of maximum expenditure. Prioritizing these schedules we will notice considerable savings.
In addition, it is very important to maintain a balance between contracted power and energy expenditure. In a contracted power of 3.3 kW, if your home does not manage to supply the demand and you go up to 3.45 kW, the problem is the usual one: the cost of raising power again eats the savings .
In terms of heating and fuel savings, the segment where the expenditure can most vary-it is estimated that the distribution of electricity consumption in a household corresponds to 42.9% for household appliances and 27.9% for heating, that another 11.9% of the hot water would have to be added- , nothing better than adapting the temperature of the home to the variations of the outside temperature, in addition to having other variables in mind such as the hours of the day, the presence of people or the areas of maximum transit.
Finally, another key is to take into account blinds and windows with detectors opening and closing to ensure a good operation and make the most of sunlight. In the same house the temperature conditions vary between rooms and is usually due to solar orientation.
An immediate reality
In the market of intelligent thermostats there are many alternatives. The most advanced, such as the third-generation Nest Learning Thermostat , indicate how to save energy, what tricks to use on a day-to-day basis to make a more efficient expenditure, with a roadmap that marks in graph form the different achievements and the possibilities for improvement.
The Nest Learning Thermostat has the ability to memorize our favorite temperatures -the ones that suit us the most during our daily life- and replicates them without having to be aware of them.
But in addition to memorizing this schedule, it also has an ECO temperature, something like a “saving mode” that is activated when we leave home. And we do not need to say goodbye, since the thermostat knows whether or not we are at home because of the number of active lights and the movement we make when moving around the rooms.
In this way we do not have to accommodate the temperature to us: the thermostat does it dynamically by itself. And how do you get it? Easy: its base of operation has WiFi modules, Bluetooth, temperature sensors, humidity sensors, near and far movement, and ambient light, as well as its ability to store our habits on a secure server, in the cloud.
Due to the period of adaptation-dynamic learning, during the first week the saving is not usually very aggressive, marking only 5% difference. It is from the second week when the energy expenditure is between 10% and 17% . These figures correspond to our use and can logically vary according to each household and their consumption habits.
According to estimations based on our own experience -using propane gas, with a GLP tariff- and following the same patterns of consumption and contracted power, the cost of energy consumed was reduced by 9% during the first month. Adding rental of measuring equipment, contracted power and taxes we obtained a result 11% lower. Month to month is a good pinch, no doubt.
For a handful of apps
But if we still want to increase the savings, we can always use applications for our smartphone, such as Save in Light (a light-hour price analysis), the Nest application itself (available for Android and iOS ), ThermoStats , a similar alternative, a savings calculator to carry out a generalized control, or a calculator strictly focused on the Electricity Expense .
Thanks to these apps we can customize the temperature of each room, schedule a turn on and off routine, following strict schedules, apply changes according to the weather forecast and be aware of our billing before the time of collection.
There are also online calculators -such as this from Endesa or this one , estimated according to the sources of consumption- but they require paying attention to the invoices and constantly entering data to correct the savings ratios.
Undoubtedly, the best alternative to save is in automated models such as the Nest Learning Thermostat: guarantee effectiveness without the burden of paying attention to each data and monthly consumption. And the results are perceptible from the first month, being able to save up to 20% of the annual total depending on the geographical area where we are and the insulating capacities of our home.