Further below, we will show you some of the most common myths surrounding efficient energy use and how to correct them.
1. Washing dishes by hand uses less energy than the dishwasher: False. Despite popular belief, the truth is that washing dishes by hand uses much more water than washing them in the dishwasher. Dishwashers use approximately 10 liters of water per wash and washing the same amount of dishes by hand results in the use of 10 to 20 times more water. Also, we will save more energy if we use the “eco” option, which although longer, uses less energy
2. Installing solar panels is expensive and requires a lot of space: False. The systems are becoming increasingly more efficient and can be installed in small spaces (starting at 2m2). There are also new architectural trends that are allowing vertical walls to be used, parking lot roofs, available roof space, or even on the ground itself. In terms of the cost, photovoltaic solar energy is currently more cost-effective, and although they are projects that require an initial investment, they create a cost reduction and are designed for a long lifespan with warranties of up to 25 years.
3. Solar panels don't work when it is cold and on cloudy days: False. Ultraviolet light is all that is needed to generate energy, and even on the cloudiest days there is generation. In fact, solar panels conduct electricity better when they are cold.
4. LED lights use a lot of energy: False. Although it is true that LED lights are more expensive, they have the advantage of being turned on instantaneously and their average lifespan is quite high. LED lights can last up to 100,000 hours under ideal conditions, which makes them a sure bet for efficient energy use at home.
5. Plugged-in appliances that are not being used do not consume energy: False. We call this “ghost consumption” or “standby". Despite the fact that many appliances manufactured today are designed to promote saving, this is a practice you should avoid because leaving these appliances in standby mode constitutes 5% of average consumption