school energy&environment

Saving energy in the house

The air conditioner
In order to protect our health it is good to keep the filters clean. These  can accumulate harmful substances such as bacteria and dusts. Furthermore it is advisable not to set the temperature at a level that is very different from the temperature outside,  because it is equally harmful for us, and it is very costly from the point of view of energy. In fact it would be better to use fans or dehumidifiers, and favour cooling the house by keeping the windows open at night and allowing the air to circulate.
The iron
Lighter irons, with steam, and an anti-scale device and 1200 watt power are sufficient for domestic use. Remember to regulate the temperature according to the type of material to be ironed.
Today there is an extra instrument to inform users/consumers and push them towards energy saving, the energy efficiency label which, as required by the law, must be attached to all household electrical appliances. The label also has information regarding the energy consumption of the unit and the related energy efficiency class , which ranges from the letter A, where energy consumption is lower to G where it is higher. From today, therefore, saving energy is increasingly easy.
TV
The television set is an electronic unit that is turned on for many hours a day, as in the case of computers. We must remember to turn  these units off when we do not use them and, as soon as possible, we should activate the energy saving functions and turn off the monitor in case of interruptions of over 10 minutes. Radios and portable recorders, watches, cameras and cell phones are generally operated with batteries. Batteries are a dangerous waste and are difficult to eliminate, as a consequence use rechargeable alkaline or lithium batteries, and remove them from the unit when not utilized. However we must pay attention at the time of purchasing  items –  some torches, watches and calculators use solar energy.
Stand-by
Stand-by systems are a true waste of energy, for instance 15W are required to make a compact disk play, and 11W are consumed just to keep the CD player turned on!
Most modern electrical appliances (TV, video recorders, computers, microwave ovens, etc.), when not in use can be left in the stand-by or sleep mode, which is usually noticeable because of the small lights that remain turned on, on the equipment.
For example the television remains in stand-by when it is turned off using the remote control and not the on-off switch.
In this mode,  consumption of electric energy is reduced, but it is not turned off after the unit has been utilized actively.
Even electrical appliances that are not operating continue to consume minimum quantities of electric energy if they are connected to the electric main ; consumption is totally stopped only when the plug is removed from the socket connected to the main or, in case the equipment is plugged into a multiple electrical outlet, when the switch is turned off.
Overall, electric energy consumption in the stand-by mode is not negligible, if you always remember to turn off electrical appliances when they are not in use, you will easily save about 8% of your annual consumption of electric energy.
How to eliminate any waste of energy in the electrical appliances when they are not in use?
Purchase a multiple electrical outlet and connect your electrical appliances to it. By turning the switch off, you will completely cut off the electricity consumption of the appliances. Also remember to disconnect all battery chargers when they are not in use.