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1. Do I Need A Power Inverter?

Actually, no. This is the only component of a solar energy system that is not absolutely required. However, if you don't use one, you will not have 120 volts AC and will have use battery power alone. This might be acceptable in a small RV or cabin, but most people want to use normal AC appliances.

2. What's The Difference Between 12, 24, And 48 Volt Inverters?

This refers to the input voltage from the battery bank. The main consideration is that at higher voltages the current is less so that you can use smaller wires between your solar panel array and your battery bank. Of course, when you decide on a system voltage, the Solar Panels, Inverter, and Battery Bank all need to use the same voltage.

3. What's The Difference Between A Pure Sine Wave Inverter And A Modified Sine Wave Inverter?

The AC sine wave of a pure sine wave inverter is just as good as the utility company's AC power. A modified sine wave inverter is not as close, but is still quite satisfactory in most cases. Certain motor control circuits don't like the modified wave. Modified sine wave inverters are also much less expensive.