Power Inverter

Continuing to work backwards, we need a feed line that can supply 220 VAC at 100 amps.  This will run between the infeed breaker and the power inverter outlet.  If the inverter outlet is very far from the load center, you will need to derate the feed wire appropriately.  

Keep in mind that the inverter is going to produce some heat, based on the efficiency and how it is configured.  So it is not a good idea to put it inside the house.  

Remember, any heat you bring in the house will have to be neutralized by a cooling system.  You get hit multiple times by these kinds of inefficiencies.

  1. wasted energy from the inverter.  Literally, energy you captured and is wasted by the inverter
  2. That wasted energy gets converted to heat in your house
  3. Your AC has to neutralize that heat that would not have existed without the inefficiency of the inverter
  4. the inverter has to supply more energy to the AC to neutralize the heat the inverter produced.
  5. that extra energy also causes the inverter to waste more energy
  6. the AC is not very efficient at all, so you are spending a large amount of energy neutralizing the effects of a small amount of energy

It is much more efficient to place the inverter in a place where the heat can dissipate without needing to be actively neutralized. It is pretty common to place the inverter, charge controller and batteries in the same container. This allows you to make use of the waste heat in the Winter time since the batteries need to be kept warm to function at peak performance.  You can utilize all of this wasted energy to help do that.

Finally, the inverter selection is fairly simple.  You need an inverter that can supply 220 VAC at 100 amps.  There are features to consider, but this is the fundamental parameter for the selection of the inverter.

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