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Thanks acd, so with 2 sets of 2 panels in parallel pushing out a max of 80 amps, definitely would need a second 24v 100 amp Battery. Would the higher charge create more heat in the Batteries? Looking at mounting them Horizontally , at the bottom of a steel cabinet. Bottom battery on 2 inch...

You may be interested in this unit, but only suitable for 12v and 24v Batteries. https://www.mkove.com/mk75-battery-monitor/

You may be interested in this earthing method from Australia, your Regs maybe different

Checking the Growatt 3000TL HVM -48v Inverter Specs again, looks like I am overpaneling with the 4 Trina Panels at 500watts each and the Growatt with a Maximum PV Array Power 1800W so will look for an alternative.

Hi MS, There is a comment in the PowMr Inverter that you detailed and the unit that I proposed as follows (VOC from PV( Make sure the Voc of PV meeting the requirement as right. Voc is 1.5 or 2 times than battery, then it's the best efficiency.) So I took it, that with a 24v Battery and 50v...

Given that the correct size cabling, earthing, fuses and circuit breakers will be installed. Ditto Solar Panels, Combiner, Controller, Lithium Batteries and Inverter. 2 Lithium Batteries will be mounted at the bottom of a metal cabinet (1830mm high, its a flat pack build), Fan off the bottom...

Thanks MS Re (So you are limited to 2P arrays at 40A. This is more than most solar wires and connectors are rated for. And combining 2 of these strings is doable with a combiner box if one can be found that handles the amps.) My understanding is that I will have 2 pairs of cables coming from...

My understanding that in Oz, a Ground Earth Alarm is required if the Battery voltage is 48V or over and the Solar Panel Voltage to the Controller exceeds 60v or greater. ‘Found this out looking at the Electrician Visit vid below. Appreciate comments in the Earthguard Write up in relation to a...

Re Rather than having a Combiner the cables from the Switch's to go to a Fuse/Circuit breaker/Lightening/Surge protector (2 separate circuits in a Junction Box) Still with a Combiner that's not a Combiner ie 2 in and 2 out but with Fuses/Surge etc. But with Fuses at 30amps each ie 20 amps...

Re (35V DC and above is to be deemed hazardous and all conductor parts that can carry 35V or more will have to have earth alarms.) Don’t know about that Requirement in Oz ie down to 35v DC, when the only earth guard I could find was for 60v to 300v Systems, and then you have to set up a system...

Am wondering what is a reasonable time period for a 3000w or 4000w, 24v inverter to last before it has a failure if running 24/7.? Appreciate your comments. The reason I ask is that some equipment sold in the US has longer warranties than the same equipment sold in Oz (agree there are different...

wm. Re (Didn't see that. I doubt it would be a big issue but if you don't already have the panels then good to stay within spec) I read Koenbreads's write up on overpaneling see below, he, specifically mentioned Growatt SPF3000TL which is the unit I am interested in. After my comment above I...

It says on the Spec sheet that Max Current at 510w is 9.50 amps. https://www.solarshoponline.com.au/wp-content/uploads/2021/07/Trina-500-Watt-150-Cell-VERTEX-Solar-Panel-TSM-500DE18MII-Data-Sheet.pdf Also appreciate your comments on this 24v to 240vac Inverter, daughters system may only had...

o-i Re (Have you considered the SPF 3500 ES?) I did consider this unit, but with a higher standby power usage ( I know its not the correct terminology) than the 3000, and not needing more than 2500watts over night at the most, I did not look into it any further. If you could let me know the...

I am seriously thinking of using an RVD as per below in my planned Growatt 3000TL Hybrid Inverter and Growatt 4.8Kw 48v Battery, Solar system. In Australia nearly all homes are fitted with RCD's (Residual Current Devices) for Mains ( Grid Power) for personal protection in case of electrical...

o_i, 2 things I am wary about with the Growatt Hybrids: Noise: listening to the nose of a Gw in the vid below especially at the 10 mins 15 sec mark when the panels are pushing 2600 watts, I am wary of placing the SPF 3500ES anywhere near a bedroom during the day and at night under load as well...

Appreciate your comments on the inverter above and this one (24v 4000watts) or...... https://offroadliving.com.au/products/new-model-2000w-12v-allspark-pure-sine-wave-inverter

In Australia, we have a 240vac system, my understanding is that if using a generator for safety reasons an RVD ( see below) is used rather than an RCD since both the active and neutral are floating voltages unlike mains power with active and neutral having a relationship to earth. I am in the...

Plan on having 2 x 500w Solar panels in Parallel (ie Panels 50v 10 amps) driving a 24v output Regulator/Controller. So the input to regulator is 50v 20 amps and the Output from the regulator is 24v 20 amps? , or 24v 40 amps? Re the 24v 100 amp SOK Lithium Battery see below The recommended...

Hi Mickie, I think the Giandel 4000w 24v are a better buy, to me better cooling, its the Oz 240vac unit that I am considering but for you its around $650 US. Other suppliers may be a bit cheaper. https://www.giandel.com/collections/24v-inverter/products/ps-4000qar-24v

Thanks for your reply, re the Growatt 48V Lithium Battery, I originally intended to use a Pylontech 3000 battery which I understand are a lot more commonly used in Australia but was told and have read about comms/warranty problems so went with the little known Growatt 48v battery to match the...

My current thinking on my Off Grid Solar Install in Australia. The Growatt 3000TL HVM-48 is a Controller/Charger/Inverter in one box, if the battery get low, its charged off the mains to keep the frig etc going. Weakness I understand, is it can be noisy on full load and it will be adjacent to a...

Re (I have 3 of their 100ah- 24v batteries in an offgrid system that has been running 24/7 since August and have been performing flawlessly) In Parallel?

Was told today by a Solar equipment outlet that the Inverter and battery should be matched ie a 3500w inverter and a 3500w capable Battery my proposed setup is a 3500 watt inverter and a 2400 w Battery BUT with Fuses/Circuit Breakers to limit a load of 2400w. In actual fact will probably never...

Thanks for the replies, Tony, Yes am more familiar with 12v lithium's, initially purchased one to power my 3m inflatable Boat, now have purchased an outboard for the inflatable and the Li. powers a small electric motor on my Yak. Still really don;t trust them. (Li's) Wifes ebike, kept the...

Thanks MS, and Planning on using 2 Controllers each 60 amp 1440watts max, x 2 ( 2880 watts) from the 2 strings of 2 panels in parallel Controller asper below. (2 mates are using them on 12v systems with 8x12v x135 amp Gel Batteries) Re (What is the max input voltage of your charge...

Thanks, Thought about making the cover out of tin plate, more fire resistant if the worst happens.

Hi MS Panel Specs here: https://www.solarshoponline.com.au/wp-content/uploads/2021/07/Trina-500-Watt-150-Cell-VERTEX-Solar-Panel-TSM-500DE18MII-Data-Sheet.pdf Coldest Temp in Adelaide Australia would rarely get to 5 deg C, max maybe 43 deg C.

Hg, Seriously looked at Growatt SPF3500 ES Off Grid 240Vac and a 48v Pylontech 2400 Battery then read about warranty problems/ownership between P and G , then switched plan to a Growatt from memory 3000 Battery. Then looking at the manufacturer criteria re positioning, clear space 2 feet either...

I have had experience with single a 12v Lithium battery and Deep Cycle 12v AGM’s in parallel but no experience with 12v Lithium’s in Series. So the question, is 2 x 12v Lithium’s in Series, better/same as 1x 24v Lithium. The write up below, does not getter into any BMS issues or or...

Looking at using a Lithium Battery like the SOK 48v unit, mounted vertical against a brick wall in a veranda. Unit to be mounted on 2, 2 inch x 2 inch pieces of wood to get it off the pavers and ditto to get it off the brick wall and allow air circulation, held to the brick wall by metall straps...

Some info Here: https://www.sunwize.com/tech-notes/grounding-in-off-grid-solar-systems/