ewertb

Wanting to confirm, the Luxpower SNA5000WPV output volage per the data sheet is 230/240V. So when paralleling these units in 3 phase that will only give 230/240V per phase (to neutral)? Does that mean it will give 380/400V between phases?

I've noticed that more expensive (higher end?) inverter models like Deye, Sunsync and Goodwe state max. input current limits on their datasheets alongside voltage and power limits. This unfortunately seems to limits their usability to long strings of smaller capacity and older technology panels and unusable with big capacity and especially the newer bifacial panels. "Cheaper" models on the other hand like Luxpower and Growatt only give voltage and power limits along with the max. charging current. Do they also have max. input current limits, what are these/how can one calculate them? Max. array power divide by start-up voltage which is quite high? Are they in fact more practical to use because of this?

Thank you. Not being compatible with Victron is a no sell for me...

Been doing some window shopping and noticed this Giter brand popped up everywhere. Anyone know anything more about them than just the data sheet as I haven't been able to find much using my google-fu? They are cheaper than the Pylontechs but at 2/3's cycle life and only 2 year warrenty. Also limited to only 6 batteries per bank.

Is there any advantage to connecting non-critical loads on the AC-out-2 instead of on AC-in (in combination with external current sensor) on the Multiplus II?

Thank you for the information. Based on this discussion it seems my optimum solution will be to replace my geyser with a solar vacuum tube version and install the smaller Multiplus II 3000VA system to power my the rest of the house (split between critical and non-critical loads). On a different point, my roof is oriented less than ideal, i.e. facing NE with some smaller sections where I might fit 4 or so smaller panels on facing NW. I figured it's better to split the aray and use smaller MMPT chargers to better utilize the roof oreintation, i.e. one larger MPPT managing NE facing panels and one smaller one managing NW facin panels. How many MPPT chargers can be managed by the CCGX? Is it recommended to split the bigger NE array into smaller arrays as well to better buffer against potential shading?

That sucks a bit... But it is what it is I guess, try and up my breaker to 80A or see how I can best optimize my situation using a Multiplus II 3000VA unit, i.e. solar geyser. Just to make sure I understand the "software power limit" part, that is the ability to for example disable the feed-in of excess solarcharger power in the Multiplus II setup menu? I live near Secunda and it can get in the negatives here. Using the Canadian Solar panel data will be able to fit max. 2 panels in series on a Victron MPPT 150/x and 4 on an MPPT 250/x.

Good day I'm busy looking into grid-tied hybrid systems to help reduce my energy consumption as well as provide backup in case of Eskom loadshedding. I keep and breed reptiles and fish as a hobby with their heating consuming around the same if not more electricity than my 3kW 150l geyser... My average electricity use is around 30kWh/day in summer up to around 50kWh/day in winter. I've been doing a lot of reading on various hybrid systems with the Victron Multiplus II inverter in a ESS setup being very appealing due to its modularity and expandibility. Some questions I currently have: 1. I've been playing around with the Victron MPPT selection spreadsheet using parameters of various Canadian Solar panel sizes. Using the STC parameters I find that the MPPT's always bum out 2-5V over max. at 0'C with trying to fit that 1 extra series panel in a string. Can the NOCT parameters be used instead or must I stick to STC? 2. I've read that the law restricts grid-tied inverters to max. 25% of your main breakers rating, i.e. 0.25x60A = 15A (3450W). The datasheet for the Multiplus II 5000VA states that it has a max. apparent feed-in of 4000VA (3200W) which means it is within the legal limit?

Good day I'm new to the forum and solar and busy investigating solar as a means to reduce my electricity consumption (i.e. self generation) and as backup (i.e. Eskom load shedding), basically a Victron ESS type system. I came across this topic searching for info on Victron MPPT's and it enlightened me to some aspects I've not yet known about and considered, i.e. the limitation on the size of grid-tied inverter that may be installed in a standard household (60A MCB). I'm interested in installing a Victron Multiplus II, the 5000VA one. The plan is to have my reptile room, living room plugs and lighting on AC-Out-1 (critical loads), with the rest of the house on AC-Out-2. My geyser has a 3kW element which I intend only switching on during peak solar production. My limited understanding is that a 4kW inverter can manage enough solar to power this without draw from grid. Now, if installing the 3000VA model my understanding is that, for the same setup, I'll only have enough solar to power 2.4kW of that and have to pull the 600W plus other loads shortfall from the grid? Reading the datasheet for the Multipluss II 5000VA I however note that the Maximum Apparent Feed-in Power is only 4000VA (3200W/13.9A). Doesn't this mean that this unit actually falls within the NRS limitation of 25% of you MCB rating (0.25*60A = 15A)?