Nice set up. Why don't you guys use the conduit box for the XW7048 / XW8548 ? Take a look at my channel plenty of Schneider gear and installations with lithium batteries...
I've got many similar components but my application is very different. 20 x Canadian Solar 330w panels, 2 x Midnite Classics MPPT controllers, 22.5KWh Lithium Ion NMC battery pack running 12s18p 44.4v (50.4v max) configuration with 9 BMS's on them. I'm building a fully electric powered cruising sailboat (salt water). I'm having a hard time narrowing down my choice of inverter, any suggestions?
@8:38 it shows house load as 211w, battery providing 353w, and grid supplying 27w. Is there an explanation as to why the house load is supposed to be 211, and there is 380w being supplied? Was this updated/fixed in a later firmware update?
Hi, Have you ever use the Grid Support mode on this inverter with Sell Back disabled? With Grid Support on, does the inverter prevent back feed the grid 100% proof, or does it leak a small amount back to the grid? How good of a job does it do to prevent any excess power? It would be greatly appreciated if you can check and advise for me on this. If you have a Smart Digital main meter that can read sell back this can be check easily. I heard many story and own a Conext SW doesn't event hough advertised that it can not sell back to the grid, yet, still leak power back to the grid in AC Support mode. :( Please help me find the answer. thank you.
I can tell you from what I have seen on large loads starting and stopping it still spikes selling back , with sell back dsabled, not ,much but its not zero.
Thank you for your reply. Do you know relatively how much and for how long? Does your main meter detect it? Wonder how the power company treated if you do not have a solar contract with them.
Hopefully you've found your answer by now. These grid-interactive systems may leak a small amount of power back to the grid. Some grid, like in Hawaii, prohibit any bit of power being sent up to the grid. If that case, you can add a contactor/relay to fully disconnect it. This policy is ridiculous, of course. I'm not sure exactly how the Schneider works in this regard but I'm not too worried about a small amount being leaked back to the grid. The reason is: motors. If you have an electric motor running (ie: 3 phase with a motor inverter) and the grid goes out, the motor will feed power back to the grid while it spins down. There are many motors attached to the grid so this happens constantly. If the grid comes around about your small power 'selling', tell them your motor did it :-)
Are batteries directly attached to the DC bus, or is there an extra bidirectional DC/DC converter between battery bank and DC bus? What is DC bus voltage? What BMS for battery bank do you use for balancing, if any?
Thanks interesting review, seams like all the hybrid systems need improving my Goodwe / Renesola cant handle Melbourne's cloudy weather and is loosing the SOC if I dont fully charge weekly so i can only use 10% of my battery till I ether get another controller to split my array or ad to it to help as the hybrid puts to much solar up to the grid over the batteries as it should not do when the batteries are so low.
Interesting, what batteries are you using? There are settings which can be adjusted which set how much of the solar energy is used to charge the batteries. Although you don't want to overcharge the batteries as you risk damaging them, or worse starting a thermal runaway (fire). Check the battery spec's and see if they match the settings. Also remember this has been a very bad winter for solar so you can't charge batteries if the sun don't shine.
Hello, thanks for the great video! I have a question, when the battery's are full, and there is a energy consumption in house, do the solar panels directly cover that consumption, so skipping the battery? Or does the battery discharge and charge right back up.
Good question. This is a DC-coupled system so when the batteries are full and there are loads from the house the energy is transfered directly to the AC inverter, so yes it skips over the batteries. This even happens when the batteries are not full as the load (pull) is higher from the inverter than the batteries. So really only excess energy is used to charge the batteries. In a correctly designed system on a typical day, you can power house loads and charge the batteries at the same time.
@@cleanenergyreviews Thanks. I am trying to build a battery less solution for a vessel LOA20 metre. If you come across any solutions that can couple solar + AC or DC generator/alternator, reply me to info@metafabs.in
Thats a great system, however it can burn through 1 kwh per day using grid in parallel with the batteries, even with no loads attached. However, you can use the inverter in ac disqualify mode, which is same as off grid mode.
I noticed the battery draw seems to be far greater than load, up to 30% higher hence terrible efficiency? I will try out the ac disqualify mode however I was limiting the current draw from the batteries to 65A (3kW) to increase battery life by not work the batteries too hard and draw the higher peak loads from the grid (the house has loads up to 5.5kW at times). This feature would be disabled in AC disqualify mode. I'm not very impressed with the Schneider software package and documentation.
I should have said minimal loads attached, instead of saying no load. If you had a 100 watt load the inverter would take 40 watts extra so 140 watts. 40 watts x 24hs =960 watt/hrs close to 1 kw. Power saving mode would make this about 28 watts, but if you had a fridge you could not use power saving mode in this instance, as the inverter ac output shuts off below the search watts.
I usually use grid support mode which burns through 300 grid watts per hour with 6kw load on the inverter, or about 100-150 watts with about 200-1000w load on the inverter. This is the penality of grid support. I have tried load shave mode and it is a little better using lower loads but at high loads its basically the same loss.
