Boas práticas

Dicas de eficiência energética

Conheça as principais recomendações relativas à utilização racional de energia, que lhe vão permitir integrar a eficiência energética no seu quotidiano, quer em casa, quer no seu negócio.

Se quer reduzir a sua fatura da eletricidade e, simultaneamente, contribuir para a melhoria do meio ambiente, fique a par de 10 simples gestos que o vão ajudar a poupar energia no seu dia a dia e que fazem toda a diferença:

 

1 - Aproveite ao máximo a luz solar. No inverno, tire partido do sol para aquecer a casa, abrindo os estores e os cortinados. Pelo contrário, no verão evite a entrada dos raios solares diretos durante o dia e promova a ventilação natural à noite, abrindo as janelas em lados opostos da casa;

2 - Em vez de utilizar o elevador, opte, sempre que possível, pelas escadas;

3 - Desligue as lâmpadas quando não estiverem a ser usadas;

4 - Não deixe os equipamentos em stand-by;

5 - Evite ligar a climatização em zonas da casa que não estão a ser usadas;

6 - Reduza o número de vezes que abre a porta do frigorífico;

7 - Deixe os alimentos arrefecer antes de os colocar no frigorífico;

8 - Utilize o micro-ondas preferencialmente para refeições pequenas e de fácil preparação;

9 - Utilize o sol e o vento para secar a roupa, sempre que possível;

10 - Evite imprimir documentos.

Eficiência Energética na sua casa
  1. - Change from incandescent lamps to LED. This will allow for energy efficiency gains of 85%; - When replacing your lamps, keep the light color for the same feeling of comfort and opt for the same shape and bulb to have the same aesthetics; - If possible, install motion sensors.

  2. - Set the air conditioning temperature between 24o and 26oC in summer and 18o and 20oC in winter;

    - Insulate the doors and windows of your home;

    - Opt for air conditioning equipment of a higher efficiency class (up to A+++) and install, if possible, temperature sensors and air conditioning management units.

  3. - Choose appliances with high energy ratings (up to A+++); - Use convection ovens, minimizing cooking times and energy consumption; - Use dishwashers and washing machines with the maximum load indicated by the manufacturer for each program, without overloading; - Set the refrigerator compartment to +5oC and the freezer to -18oC; - Choose an induction hob, faster and more efficient; - Select the washing program according to the type of dishes/clothes and dirt.

  4. - Choose computer equipment with Energy Star symbols;

    - Prefer LED or LCD monitors, with high energy efficiency;

    - Use switched or command-controlled outlets or smart outlets.

  5. - Choose water heaters with high energy ratings (up to A+++);
    - Prefer electric water heaters with a thermostat or time control.

  6. - Unplug transformers and chargers, whenever they are not needed;
    - Unplug equipment that is not needed;
    - Choose the most appropriate tariff for the type of use, in order to reduce the consumption of electricity;
    - Also consider which power to hire and the time to use.

Eficiência Energética no seu negócio
  1. - Whenever possible, maximize the use of daylighting;

    - Choose lamps that have a luminous flux (lumens) equal to the lamps to be replaced. This parameter can be found on the packaging;

    - The type of bulb to be chosen must be the same as the bulb to be replaced (see package). The shape of the lamp (focus, globe, classic, tubular) should also be the same to ensure that the lighting effects are maintained;

    - Choose a lamp with a color temperature close to the color temperature of the lamp to be replaced (see package). The color temperature is expressed in ̊K (Kelvin Grade). The higher the number of ̊K, the colder the color of light;

    - Lamps with high start-up times may not guarantee minimum illumination levels in spot use locations (see package);

    - Do not use CFL lamps in locations that have a high number of cycles (on / off), as the life of this type of lamp is affected by the number of cycles. Most of these lamps are also not suitable for high humidity places such as bathrooms and outdoors;

    - Use presence detectors and time switches;

    - Remove ballasts from unused lamps.

  2. - Choose the equipment taking into account your usage needs (heating, cooling, or both) and the areas to be air-conditioned, in order to ensure a good level of comfort at a low energy cost;

    - Opt for air conditioning, in case of intensive use. Always choose an A++ class air conditioning equipment instead of a traditional air conditioner. This way you can achieve energy savings of about 80%;

    - Buy equipment with better efficiency levels. The energy label has two classifications: for cooling and for heating, on a scale of D (low efficiency) to A+++ (high efficiency);

    - The choice of power of the equipment to be installed should be appropriate to the size of the area to be air-conditioned;

    - Clean the filters of the air conditioner and the outdoor unit regularly;

    - Keep the caulking of doors and windows in good condition.

  3. - Consider replacing equipment that is more than 10 years old with new, more efficient equipment. For household refrigeration equipment, choosing A+, A++ or A++ energy class equipment can lead to energy savings of 20%, 40%, or 60%;

    - Choose equipment that does not have glass in its construction for areas that do not have public access;

    - Choose equipment that allows the installation of the condenser outside the building;

    - Consider the purchase of modular cooling chambers;

    - Replace and clean the insulation rubbers;

    - Clean the ice accumulated on the walls of the chambers;

    - Use slats on cold room doors;

    - Maintain good ventilation of the condensers;

    - Don't forget to always adapt the stored capacity to the equipment and keep them organized: an upper area for ready-made products, middle area for meats and fish, lower area for vegetables and legumes;

    - Let the food cool down before putting it into cold storage;

    - Defrost foods in the refrigerator;

    - Adjust the operating temperatures to your use.

  4. - In the control of air conditioning, air treatment, thermal power plants, and boilers;

    - In lighting control, according to the schedule and natural lighting;

    - In the monitoring of energy consumption and optimized management;

    - For intrusion warnings, protections, alarms (CO, CO2, gas, temperature);

    - In the detection of presences in divisions of the building;

    - In real-time monitoring.

  5. - Choose the induction hobs, they are more efficient. Still, consider the characteristics of gas or glass-ceramic plates;

    - Choose the equipment with the help of a professional;

    - Carry out periodic maintenance of the equipment;

    - Clean oven and stove gaskets regularly;

    - Keep oven walls clean, including microwave ovens;

    - Opt for steam cooking equipment;

    - Defrost food before cooking;

    - Opt for ceramic or glass containers and adjusted to the size of the plates;

    - Avoid opening the oven and use the maximum capacity;

    - If you cook for more than an hour, do not use preheating.

  6. In-car elevators, frequently clean and lubricate all components and check the tension of the belts. Poor lubrication affects the operation of the motor, causing it to strain, reducing its life span, and increasing energy consumption.

  7.  - Choose ENERGY STAR® labeled equipment, as it is more efficient;

    - Choose LED or LCD monitors. LEDs have a better picture, longer life span, and about 70% lower power consumption than CRTs;

    - Do regular maintenance when it comes to software and hardware;

    - Put computers on standby when the period of non-use is short, such as at lunchtime;

    - Turn off computers when the period of non-use is long, such as over the weekend;

    - Turn off equipment when not in use.

  8. - Make regular maintenance of the equipment and pay special attention to coffee filters that, when they are clogged, hinder the circulation of water, thus causing greater wear of the machine;

    - Turn off the coffee machine whenever it is not to be used for periods longer than two hours, which allows significant savings.

  9. - Reduce the hot water flow;

    - Reduce washing times;

    - Maximize hand drying of hair, before using the dryer;

    - Turn off wax heating equipment whenever it is not needed.

  10. - Buy the equipment - water heaters, water heaters, heat pumps, or solar panels - taking into account its use, the available space, and the level of energy efficiency;

    - Install the equipment as close as possible to the hot water usage points;

    - Give priority to thermostatic equipment that allows you to control the temperature of the outgoing water;

    - Opt, if possible, for solar thermal: thermosiphon, a cheaper system, but more susceptible to bad weather; or forced circulation, a more expensive system, but more efficient and resistant;

    - Install thermal insulation in the hot water passage pipes, to reduce thermal losses and energy waste;

    - Use time switches in electric water heaters, programmed to turn on the equipment before it is used and turn it off before the end of its use and, if possible, program the switch to turn off the equipment during peak hours;

    - Reduce the water temperature and the water flow in taps; Perform regular maintenance of equipment, checking for leaks in the plumbing.

  11.  - Whenever the equipment allows it, opt for preheated water supply;

    - Perform the annual maintenance of the equipment;

    - Clean the filters and water diffusers daily;

    - Always use the machines at full load;

    - Make a pre-wash with spray gun or jet of reduced flow;

    - Adjust the washing program to the usage, opting for the economic ones;

    - Turn off the equipment when not used for long periods;

    - Adjust the machine according to the hardness of the water.

  12. - Turn off standby equipment;

    - Unplug transformers and chargers, whenever they are not needed;

    - Unplug equipment that is not needed;

    - Sensitize the users of the space to save energy;

    - Choose the most appropriate tariff for the type of use, in order to reduce the consumption of electricity;

    - Also consider which power to hire and the time schedule to use.