I am fairly new & considering using the Schneider Conext XW Pro 6848 to build upon. A simple & complex question, will the XW Pro sync / combine power from different inputs to feed a high start up or short term requirement. Example PV out put or generator will run the load of the house (including AC run) however when the AC starts will need added power from the batteries.
Also are there other options to control & sync four power inputs, Grid, PV, Generator, & battery?
The XW-pro will do all you want it to with some caviots. The Solar PV can Charge your batteries during the Day and Run your house loads as well but only up to the 6400 watt level on 1 XWpro or higher watts with multiple units. The battey or batteries you have and the amount of loads will determine how long you can run on the stored energy in the batteries. I for instance I have 22.5 kwh (Kilowatt Hours) of battery storage with the 3 Kilovault Hab 4 batteries on my system. This means if they are charged fully they will provide 1000 Watts of power to my loads for 22.5 hours, or 500 watts for 45 hours.
The system if setup properly will act just like an uninterruptible power supply, like what is used on your PC. When the Grid goes off the inverter takes over with the PV power if the sun is shining or if not the battery will supply the energy. The Inverter has a built in battery charger that can recharge the battery in situations when in the winter the sun is greyed out by clouds, and you have to top off the batteries from the grid power if it is available. Or use the store power from your batteries in an emergency, sun is down and the Grid is OFF. The battery can supply the energy, but what you have to figure out is what is absolutely necessary because those batteries won't supply energy forever. Thus you have to balance your needs to the cost of those expensive Lithium Ion batteries. Balance the battery cost with your emergency needs. The Solar Array can be very large and supply a major part of your energy during the day but when the sun goes your only source is either the grid or batteries. The question you have to ask yourself is do you want to cycle the batteries and use some of that stored energy at night. So yo need to figure out that cost. batteries are not free and have a limited number of cycles. So if you look at the cost of each battery cycle you will find that in most cases the cost of Grid energy is much less than the cost of the use of a cycle of the battery. My recommendation is to save your batteries for emergencies and buy power at night and conserve when you can. If you live in a sunny location lucky for you. Also if your grid provider allows you to sell back to the grid great but charge your battery full first and then consume all you need and sell the excess. If you have a small system you will learn to conserve. Ways to conserve is to find energy efficient appliances and use LED lighting and turn it off if you are not using it. I am setting up a whole home management system thru Home Assistant. The reason I chose the Schneider Electric XWpro was this video.
It shows the capability of the XWpro VS Solark.
The reason this inverter is so good is the built in transformer you can't do what this inverter can do without it. These other inverters don't have the copper built in that allows you to provide 6800 watts continuous and 8500 watts for 30 minutes and 12000 watts for 30 seconds. It will start your large inductive loads like your air conditioner you vacuum your Furnace Fan and your air compressor. That's impressive. Other inverter designs don't use a transformer and only use silicon devices to carry out the AC Sign Wave generation, when the current goes above the silicons limit they have to shut off the current. With a transformer the electronics is quite different, because the inductive nature of large coils of copper that stores energy this is the magic of transformers. Analog XL/XC and R. AC circuit design. Digital is needed for control but magnetics is need for power and motion.
The XW-pro also has a AC Generator input but both the AC1 and Gen inputs cannot be used at the same time. This Generator input can be used for either a generator of a AC coupled PV Array (Micro Inverters).
I am not saying that this inverter is perfect, I am saying it has some impressive capabilities that I like, However, they do have some Software and Firmware issues that need to be addressed as well as some issues lying to the public about things like advertising they have closed loop integration with a battery vendor, when it does not work properly.
This has been an expensive system to build but beats the pants off the competition when it comes to running inductive loads.