March 16, 20224 yr Hi guys. Been looking around for a while, but my first post. I am in the process of assembling my own solar system for my house. Using around 800Kw a month, so I have settled for the following: 8Kw Deye inverter 14 x 660W Candian solar When it comes to battery supply, I am not sure which route to go for. Looking for a 10Kw system, but not sure which one to look at. Budget +- R60k. Ones I have looked at so far: Dyness Powerbox 9.6kWh Freedom Won Lite Home 10/8 LiFePO4 Battery REVOV 2LiFE R9 10.2kHw REVOV LiFE C8 11.2kWh Could I ask for some input from your side?
March 16, 20224 yr You should add pylontech to your list as they are modular ,so easy to expand 3X US3000c will give you 10.5KW 10 year guarantee (3 for plus minus 54k). OR 2x UP5000 will give you 9.6kw 5 year guarantee.(2 for plus minus 46k) Also within your budget.
March 16, 20224 yr Both Dyness and Freedom Won are great. Also have a look at BSL 5.1 or 6.4. I have had them for 18 months and cycled daily with a battery health of 100% as read by my Sunsynk 8kw. Just know that there is a limitation on some batteries with lower C ratings and you overcome this by adding more batteries. Regards
March 16, 20224 yr Hi, Have any of you heard of, or had experience with, the rentech brand of batteries? Edited March 16, 20224 yr by Sagren
March 16, 20224 yr 8 hours ago, Slaki said: I am in the process of assembling my own solar system for my house. Using around 800Kw a month, so I have settled for the following: 8Kw Deye inverter 14 x 660W Candian solar For the sake of service reliability choose two (smaller) inverters to work in parallel. If one fails you can still have electricity from the other until the faulty is repaired. It also gives you peace of mind for overload. With 800kWh per month you consume an average of more than 26kWh per day. I suggest at least 15kWh of battery.
March 17, 20224 yr 6 hours ago, Beat said: For the sake of service reliability choose two (smaller) inverters to work in parallel. That is usually not more reliable - the common failure modes will affect both units.
March 17, 20224 yr I have the dyness powerbox and I'm happy with my choice of neat box. It only allows me to use 7,6kwh of the 9,6kwh. At 80% depth of discharge. 10 year warranty sounds nice, hope to never find out what it's worth. If you are happy with server rack mount batteries the pylontech us3000c allow you to use 95% of their capacity which is better. And modular which means you can add as funds allow. Similar warranty. Freedomwon has high C rates, neat boxes and similar warranty but not modular so you have to buy the capacity you need. All seem to communicate well with the Deye inverter so it's really up to what you value. I have no comments on others as I have no experience with then nor have I tried to get any information about them. Edited March 17, 20224 yr by Buyeye
March 17, 20224 yr Author Thank you for all the comments and suggestions. Must say that the 5 guarantee puts me off on the 5000 unit? Any reason they will not do a 10 year? I really like the look of the Dyness unit aswell as the freedom won. Looks stylish and neat, but guess at the end of the day it does no really come down to that right? As you mentioned that the pylontech is modular makes so much more sense to look at. Rather add batteries than buying a complete new unit. Any comments on the Revov? Edited March 17, 20224 yr by Slaki
March 17, 20224 yr 2 minutes ago, Slaki said: I must say that I really like the look of the Dyness unit aswell as the freedom won. Looks stylish and neat, but guess at the end of the day it does no really come down to that right? Yes! Not about what looks good...Just get Pylontechs and be done with it! No hassles, no sleepless nights, no issues...AND ITS BEEN TESTED IN AU and has performed well. I cant understand why people punish themselves by buying crap and them spend years complaining about the crap product afterwards.
March 17, 20224 yr Author 1 minute ago, FixAMess said: Yes! Not about what looks good...Just get Pylontechs and be done with it! No hassles, no sleepless nights, no issues...AND ITS BEEN TESTED IN AU and has performed well. I cant understand why people punish themselves by buying crap and them spend years complaining about the crap product afterwards. I hear you and agree. Any limit on amount of batteries you can add?
March 17, 20224 yr 2 hours ago, Slaki said: Any limit on amount of batteries you can add? If you have the C model you can add 16 in one bank without a hub and when you add a hub you can add several banks.
March 17, 20224 yr 6 hours ago, P1000 said: That is usually not more reliable - the common failure modes will affect both units. Well, if you want to contradict live experience. It is rather rare that both units would fail at the same time. 2 hours ago, Slaki said: Any limit on amount of batteries you can add? No, in my opinion there is no limit. The more the better. In view of your solar power you must be interested to harvest all energy on a sunny day for eventual use on cloudy day. Edited March 17, 20224 yr by Beat
March 17, 20224 yr 24 minutes ago, Beat said: Well, if you want to contradict live experience. It is rather rare that both units would fail at the same time. Perhaps your experience is valid for Voltronic inverters; their most common failure mode is self-destruct. 🤣
March 18, 20224 yr I have just ordered 3x Hubble AM-2, 5k Sunsynk, and 6440 kWp panels for an installation at a family member's home. The Hubble AM-2 has excellent specs, use BYD cells and are well supported locally.
March 18, 20224 yr 3 hours ago, YellowTapemeasure said: I have just ordered 3x Hubble AM-2, 5k Sunsynk, and 6440 kWp panels for an installation at a family member's home. The Hubble AM-2 has excellent specs, use BYD cells and are well supported locally. Due to the sensitivity from some members, I'm wary of saying anything positive about Hubble.
March 18, 20224 yr 1 hour ago, Leshen said: Due to the sensitivity from some members, I'm wary of saying anything positive about Hubble. I put my money where my mouth is. 🙂
March 18, 20224 yr 4 minutes ago, YellowTapemeasure said: I put my money where my mouth is. 🙂 When I installed my own solar system, Hubble AM2 wasn't available so I installed BSL, not because there was a lack of Pylontech, but because to achieve the 185A charge and discharge rate of the 8kw Sunsynk, I would have to get 5 US3000C which wasn't cost effective. The 2 x 6.4Kwh has a discharge limit of 210A and a charge limit of 160A. It's far from being a crap battery. They are also used in the aviation sector which im quite familiar with.
March 23, 20224 yr I'm late to this party. Revov's web site does not include any setup information for a Deye inverter, so you may not get support from them. Check first. Both the Revov models you list have no CAN bus, so you have to depend on the inverter to figure out what SOC is. I am having trouble with this right now, admittedly with a different inverter. I don't know if the problem lies with the inverter or the BMS. One consequence of this is the inverter thinks the batteries are at 100% SOC before the BMS does, so the inverter stops charging the batteries at that point. My batteries seldom get to 100%. They do offer an intermediate box which sits between the inverter and the battery and provides CAN bus. They have no stock of this item at the moment. I think the actual batteries (the cells) are good, but if you don't know what the SOC is, then maximising that goodness is difficult. Other Revov models (EG R100) do have CAN, but you still have the problem that they are not giving any parameters for Deye, so you may have to figure out the setup yourself. Meanwhile just about every even half-way decent hybrid inverter can talk to Pylontechs with no problem. That doesn't bind you to Pylontech, but to any battery that has the same protocols and parameters (IE the inverter can talk to it as it if it's a Pylontech).
March 27, 20224 yr On 2022/03/16 at 4:53 PM, Slaki said: When it comes to battery supply, I am not sure which route to go for. Looking for a 10Kw system, but not sure which one to look at. Budget +- R60k. Ones I have looked at so far: You could take a look at these Blue Nova units, they fall within your budget and you can add more later. I have bought from these guys before, they are in my town. Only thing is you have to pay via Bitcoin or PayPal in dollars… Maybe if you contact the owner you could ask for a price in rands? www.solarphile.net https://solarphile.net/solar-store-3
March 28, 20224 yr 12 hours ago, Gandalf said: Maybe if you contact the owner you could ask for a price in rands? www.solarphile.net I'd call this outfit a scam and certainly avoid them, a supposedly South African outfit quoting in US$ prices and wanting to get paid by way of Bitcoin or PayPal smells pretty awful, no-one globally is going to buy from a South African outfit, since more than likely similar or the same products are available in their own country at the same or better prices without having to worry about how to get the items shipped... Before this posting I've never heard of this "Company" if one can call it that, either way, not quoting prices in the local currency and wanting to only get paid by unconventional channels should raise all red flags and then some...
March 28, 20224 yr 13 hours ago, Gandalf said: You could take a look at these Blue Nova units, they fall within your budget and you can add more later. I have bought from these guys before, they are in my town. Only thing is you have to pay via Bitcoin or PayPal in dollars… Maybe if you contact the owner you could ask for a price in rands? www.solarphile.net https://solarphile.net/solar-store-3 10 minutes ago, Kalahari Meerkat said: I'd call this outfit a scam and certainly avoid them, a supposedly South African outfit quoting in US$ prices and wanting to get paid by way of Bitcoin or PayPal smells pretty awful, no-one globally is going to buy from a South African outfit, since more than likely similar or the same products are available in their own country at the same or better prices without having to worry about how to get the items shipped... Before this posting I've never heard of this "Company" if one can call it that, either way, not quoting prices in the local currency and wanting to only get paid by unconventional channels should raise all red flags and then some... That site definitely looks like scam. They don't even provide full address. Just a street name but no street number. One cellphone and one email address for contact. Exactly the same as all the other solar scam sites!
March 28, 20224 yr Guys Solarmd is a big south african manufacturer. Lookup for solarphile.net only brings up redacted thanks to the poppi act. I did look at their site it looks fine since they are not targeting the south african market. There have been questions on the forums about getting stuff shipped to Europe and such. To me it looks like they are targeting that market and the crypto crowd. You are also accusing @Gandalfof misleading us. Edited March 28, 20224 yr by Buyeye
March 28, 20224 yr 29 minutes ago, Buyeye said: You are also accusing @Gandalfof misleading us. Nope, maybe lack of common sense, but nothing else, if solarphile was based in the US, then, maybe it might look legit to me, but even then, no interbank transfer payment option, other than by way of PayPal would smell off, if you are based here, then you should quote prices in the local currency, unless you a Mr. MoneyLaunderer and trying to get your money out of the country without Mr. SARS being aware or probably being able to do much about it. Stating at the bottom of the website: Solarphile Supplying solar products in South Africa and internationally and Dunn Street, Arcadia, East London... ok, so they are that LARGE that the whole of Dunn Street encompasses their premises, on both sides... really? and only an 073... number, no fixed line number? Well, if you gurgle Dunn Street, Arcadia... you see Cape Tiles (Pty) Ltd, Adendorff Machinery Mart and others encroaching on Solarphilemon's territory and my guess (less than common sense, I suppose) makes me think the outfit I called a scam, is probably one... As for SolarMD, I've heard of them, but no dealings with them, so can't comment, but since their domain has been around since 2004, the .com domain I think, seems a lot more legit. Also there are address details on their website that sound more realistic than Solarphilemon's and not only a cell phone number, but a region and suburb linked phone number 021, Cape Town, check, 555.... Montague Gardens area, check the address in Montague Gardens makes me feel a lot more confident that this company is legit... then again, we're on the African continent, so who knows... Edited March 28, 20224 yr by Kalahari Meerkat
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