"Turn off the lights" seems to have become a common practice to save energy. When "turning off the lights for an hour" was accused of being an unenvironmental behavior, turning off the lights at random was also questioned whether it could really save energy. "Don't forget to turn off the lights when you go out." This sentence accompanies us almost every day. "Just turn off the lights" seems to have become a common practice to save energy. When "turning off the lights for an hour" was accused of being an unenvironmental behavior, turning off the lights at random was also questioned whether it really saves energy. In the end, this thing that can be done easily, is it really easy to save energy?
Can you turn off the lights to save electricity?
People who suggested that turning off the lights at random may consume more electricity have such a point of view: Take the most commonly used energy-saving lamps in the home as an example, the instantaneous current when switching on and off is very large, and it consumes more electricity than usual.
Experts explained that the instantaneous current time of energy-saving lamps is extremely short, only about 1 millisecond. The power of general energy-saving lamps is around 10W, which is 60,000 times that of 600kW. For a general high-rise residence, a three-bedroom, two-hall, and two-bathroom unit, the power of all electrical appliances added together will not exceed 10kW.
If the lights are turned on instantly, it will take up half the power of the building, is it possible? Obviously impossible. Turning off the lights will definitely save power. But for "the instantaneous current when switching is very large, more electricity than usual" is the problem of old-fashioned fluorescent lamps. Now energy-saving lamps are all electronically activated, so this problem does not need to be considered.
But another problem arises. In addition to turning off the lights to save electricity, the loss caused to the lights increases, and the frequently replaced lights seem to increase carbon emissions?
Is it environmentally friendly to turn off the lights?
Turning off the lights at will will definitely save electricity, but this will consume the life of the lamps, which will cause you to replace the lamps in advance. If you use more lamps, you will naturally need to manufacture more lamps, which is obviously not suitable from the perspective of low carbon and environmental protection. . Especially now, many people use energy-saving lamps. The power consumption of energy-saving lamps is much lower than that of incandescent lamps in the past, but long-term frequent switching of lamps will cause more losses.
Therefore, some experts have suggested that for incandescent lamps, it is best to turn off the lights at will, which can save electricity and prolong the life of the bulb. However, fluorescent lamps such as energy-saving lamps have a large life-span loss of the lamp when the lamp is turned on, so it is not recommended to turn off the lamp at will. When the time of turning off the lights exceeds half an hour, it is recommended to turn off the lights at will.
Energy saving and environmental protection, in addition to energy saving, but also environmental protection. If we want to save energy at the cost of not being environmentally friendly, is it a bit contradictory?
