| How much you can save depends on your usage and variations in weather |
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| It¡¯s more efficient to be hooked to the utility grid because off grid systems must store the energy, as in |
| batteries. If you are on the grid, the utility company stores the energy. The utility company keeps track of |
| the kilowatts you use on an hourly basis. During a sunny day, you can produce more energy than you are using |
| so your electric meter goes backwards and you build up energy credits. The goal of your solar power system on |
| the grid is to produce as much power over a twelve month period as you use. |
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| How on-grid solar system works? |
| ON GRID refers to a energy power system that's connected to the utility power grid. In the case of a solar |
| energy system, excess power from the solar array, not used by the home/business is fed into the utility grid |
| and the utility meter records the power excess as a credit. This excess is then used when solar power is not |
| available. Batteries aren't needed in a on grid system. (see the drawing as follow ) |
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On-Grid Energy Systems
