How many watts is a 36V panel?

So, for example, let's say you put two 18V 100W panels in series, which will give you ~5.5A at 36V. You could then wire one 36V panel parallel to the string of two 18volters because they are both putting out the same voltage. How many watts is that 36V panel? Let's say for example that it is a 300W panel putting out 8.33A at 36V.

Can I replace 18V panels with 36V panels?

The panels will deliver 36v ". This suggests to me that you could either be removing the 18V panels and replacing them with an unknown number of 36V panels, or alternatively adding new 36V panels along side the original panels. Both are still doable, but with caveats mentioned above.

Do I need a 24 volt inverter?

Of course, you will need a 24 volt inverter (rather than a 12 volt inverter). Actually, you will barely be able to adequately charge one battery with a 300 watt panel. If you want to increase your battery bank, you will need more panels and a MPPT controller that can handle 50 amps.

How many watts can a 36V controller charge?

So, your two parallel strings would be 5.5A at 36V and 8.33A at 36V, for a total of 13.83A at 36V. That is equal to 498W of panels total. 498W/13V charging = 38.3A. So, that combination would be OK for your controller, because the max amperage is less than 40. Now, what if you have three 18V panels?

How much power does a grid tied panel use?

With a Grid Tied which you have, you should be using a MPPT Controller. If you had used a MPPT controller would have provided 25 amps of charge current. With your panel and a PWM controller all you are going to get is 8.3 amps or about 99 watts. You just as well throw the panel away and get a 12 volt 100 watt panel.

Does Outback have a 36V system voltage?

Almost all manufacturers have settled on 24 or 48V as system voltages. Outback was the sole company that used to market 36V equipment, and I don't see anything 36V in their current offerings. Do you already have a 36V inverter, or other 36V equipment? One further issue is the charging rate. Even with three 12V panels the charging rate is too low.