- Any inverter you choose for your solar panel system will have to be compatible with your battery bank and household electricity requirements. Voltage is the predetermining factor. Battery banks are either 12 or 24 volt. Your inverter must be compatible with that input voltage.
The difference between solar power inverters lies in the sine wave characteristics of the alternating current produced. A sine wave looks like a symmetrical coil lying horizontally. - True sine-wave inverters are consistent with or better than the electricity produced by public utility companies: The sine wave produced is truly a consistent pattern. These types of converters are more expensive because they rely on more sophisticated technology to produce electricity with appropriate voltage for household use. The switches and transformers relay alternative current to step up (that is, convert) the direct current from your batteries to an alternating but consistent current at increased voltage.
- A modified sine-wave inverter can be used for your solar power system but is not recommended to run any medical equipment and is really not consistently good for running an entire household's electrical loads. Modified sine waves lack steps in the switch transformer technology but will produce currents with a majority of symmetrical waves. However, there are dead spots within the wave cycles; these dead spots create distortion, which creates poor-quality electricity that can harm high-quality electronics.
If you're going to rely on your solar power for as much electricity that can be generated, invest in a true sine-wave inverter.
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