Loads
It is crucial to carefully consider household appliances in the design of an isolated network system. The first step is to make a list of the required energy of each desired appliance and determine the average daily hours that each will use. A load analysis calculates the energy consumed by each appliance with the ultimate goal of determining the total average energy consumed daily by all loads in the home. This daily consumption value is then used to designate a battery bank large enough to store that daily energy and a solar panel large enough to produce that energy.
Other considerations include whether appliances use AC or DC. All appliances outside a shelf that can be connected to a wall outlet are Alternating Current. For houses with isolated networks of full-time occupation, the benefits of appliances with Alternating Current exceed those of DC. Conventional appliances are readily available, and operate at higher voltages, so you can use smaller standard AC power wiring at home. In certain applications, such as a cabin, truck or boat system, the increased efficiency created by removing the inverter can justify more expensive and more difficult to obtain DC power appliances. For example, a solar panel system for a boat can operate 12 Volt DC lights, a radio, a television, and a refrigerator directly from the battery to avoid the use of an inverter.
A very nice article. Thanks for sharing.
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