Does a fan save more energy than it uses?
I don't follow how a fan can save energy, it just uses energy. If it helps to keep you cool that is fine, but it is not saving energy.
energy is energy It does not matter what you are using the energy for, it matters how much energy you are using A 200 watt light bulb uses more energy than a 100 watt light bulb A 200 watt motor uses more energy than a 100 watt light bulb A 200 watt heater uses more energy than a 100 watt light bulb
Blackle saves energy IF you use a CRT or a Plasma screen as these require more energy in produce lighter colours and in particular white. HOWEVER, if you use an LCD screen it uses up to 6% more energy to produce black rather than white. This means that in the case of most modern computers Google itself saves more energy than Blackle does. This is because LCD screens have for many years natively shown white…
Most, if not all, HDTV's are made to use as little energy as possible. Most will have a display setting with low back-lighting to save even more energy. And of course, the bigger the screen, the more energy it consumes. It looks that the average plasma TV uses more energy than an LCD or LED TV of the same size. http://reviews.cnet.com/green-tech/tv-consumption-chart/
You can use an energy-saving bulb to save energy. Obviously an energy-saving bulb uses energy, but it uses less than the old sort - about 80% less. In saving energy you will have lower bills to pay for the energy you use, and the environment also benefits because less CO2 is released into the atmosphere at your nearest power plant.
The United States dramaticallly uses much more energy than any other country in the world. In fact, a recent study showed that the 5% of the world's population (that is to say the population of the US) uses 23% of the energy in the world. Another way to say it is that the US uses more energy than Japan and Russia combined. Also, the USA recently passed China in being the number one producer of…
How do you reduce electrical energy used by an appliance I have a waffle maker and I was wondering how I could reduce the energy used by it by 10 percent or more Would unplugging it work?
Is this true about calories your body uses them for energy and stores them in your fat cells if you eat more than you need?
Yes, if we look at the electrical energy used, illumination obtained and lifespan of LED lighting. LED light uses electrical energy 80% more efficient than Incandescent lighting, and 50% more efficient than fluorescent lamp. Led light uses electrical energy 80% more efficient than Incandescent lighting, and 50% more efficient than fluorescent lamp. Incandescent lifespan of about 2000 hours, 3500 hours halogen, fluorescent approximately 8000 hours, while the LED illumination can be expected to live up…