The power is specific to the lamp set.
2/3 of energy input is wasted at the power station.
In most energy transformations, part of the energy is wasted. Much of the wasted energy is usually converted to heat.
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Blood? Wasted? Wow! My whole perspective has changed!
Usually, much of the wasted energy takes the form of heat energy. However, part of the energy can also be in other forms, for example sound.
Some ways to reduce how much energy is wasted would include, shutting off any lights that are not being used. Set thermostat to 78 and leave it. Turn the TV off and go for a walk.
Well it all depends on how youy look at it
Depends on how long lights were left on unnecessarily. Usually it's cleaners, children, the general public and employees who leave lights on without considering the energy and money wasted. Think about the time lights were left on before installing motion sensors, then think about the energy use and find out the cost of 1 unit of energy. It usually saves 25%.
Well it all depends on how youy look at it
They are used to show how much energy is used and how much is wasted in an object/item.
A lot of energy can be wasted at schools. Sometimes, central heating is left on in rooms with no one in them.
Useful energy is energy that can be converted to any other type of energy. Wasted energy is no longer available to be converted - usually because it got spread out too much, or because it got converted to heat. Heat can be partially, but not completely, converted to other types of energy.