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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2275964 Views)
UPS Back-up, Also A Complement To FTA / FTA Frequency / Cctv Installation A Complement To Fta And Solar Energy (2) (3) (4)
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Re: Solar Energy, A Complement To FTA by Ferdiwar: 11:03am On May 05 |
You can get Jinko or Longi 450w to 475w and do 12 or 14 (6s2p or 7s2p) mctfopt: 1 Like |
Re: Solar Energy, A Complement To FTA by Edrizz(m): 11:03am On May 05 |
Ferdiwar: High frequency SRNE hybrid inverter with 500v, 13amps... the amperage of the PV input is rated at 13amps |
Re: Solar Energy, A Complement To FTA by Edrizz(m): 11:11am On May 05 |
Ferdiwar: The 2 MPPT trackers are 6500watt apart and the 370v (125 - 500v) is for individual MPPT tracker n not combined. So in total, ur 2 MPPT trackers can take 6,500watt x 2 = 13kw all together 1 Like |
Re: Solar Energy, A Complement To FTA by Ferdiwar: 11:14am On May 05 |
If the 13A is Imp you should see a higher amps for Isc which is the max the inverter can take in case of a short circuit from the panels. You can get a higher wattage panel like 550w to 580w with VOC lower than 50v and series them up to 10pcs. Edrizz: |
Re: Solar Energy, A Complement To FTA by jonescosmos(m): 11:20am On May 05 |
Ferdiwar:Please note that your 6500W Max PV is the Combined MPPT PV Power, So each of you MPPT is Rated 3250W, manufacturer does not need to spell this out to you 370V is the nominal voltage for each MPPT, of course you can go all the way to 500v PV but don't exceed it by 1V. Your best practice for your Inverter is for you to run 14x625w Jinko panels in a 7 series on each MPPT setup. Theoretically that should give you 8750w @ STC. But you will get something around NOTC spec of the panels |
Re: Solar Energy, A Complement To FTA by Ferdiwar: 11:27am On May 05 |
Oh ok. Thanks for your response. Edrizz: |
Re: Solar Energy, A Complement To FTA by jonescosmos(m): 11:31am On May 05 |
Edrizz: The bolded claim is not correct sir. 6500w is the combination power of both MPPTs 2 Likes |
Re: Solar Energy, A Complement To FTA by jonescosmos(m): 11:32am On May 05 |
Ferdiwar: Please post the Spec Sheet Label or Sticker of your Inverter. |
Re: Solar Energy, A Complement To FTA by Ferdiwar: 11:47am On May 05 |
Thank you for your response much appreciated. I currently have 5x 570w Longi on the PV1 and 5x 625w Jinko on the PV2 which are both doing great. Will add to more 2x 570w or 580w Longi and 2x 625w Jinko to the setup as I plan on adding a 15kwh to the already existing 5kwh. jonescosmos:
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Re: Solar Energy, A Complement To FTA by Ferdiwar: 11:48am On May 05 |
jonescosmos:
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Re: Solar Energy, A Complement To FTA by jonescosmos(m): 12:11pm On May 05 |
Ferdiwar: @Bolded: are you referring to the battery? Is your Longi Panel a Hi-Mo x5 or Hi-Mo x6? Based on your pictures, your panels are obviously operating @ NOTC or less. So I recommend you add 3x570W Longi on PV1 and 3x625W jinko on PV2 respectively. this should get you around 6000W-6500W which is the Max your 5KW Inverter can do. |
Re: Solar Energy, A Complement To FTA by Edrizz(m): 12:11pm On May 05 |
jonescosmos: Maybe Deye is different then, cos I'm 100% aware that for SRNE, their 2 MPPT trackers are independent of the max input pv of 6500watt, 125v nominal voltage and 500v max pv n attached is my proof
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Re: Solar Energy, A Complement To FTA by Ferdiwar: 12:15pm On May 05 |
Hmmm... Now I'm confused 🤔 If below is to be true that means the the 500v is the combined max voltage of the 2 MPPTs. Meaning each MPPT is 250v/13A totalling 6500w for both. Please clarify ify assumption is wrong. jonescosmos: |
Re: Solar Energy, A Complement To FTA by jonescosmos(m): 12:20pm On May 05 |
Edrizz: The principle is them same, the picture you posted is for 8.8KW, 10KW and 12KW Inverters, And SENRE has done justice to what i said earlier about manufacturers not telling us about the power of individual MPPTs . So it's safe to say that the 8.8KW has a max PV power of 11000W, the 10KW has 11000W PV Power and the 12KW has 13200W PV power respectively. On the side of the Deye 5KW inverter it has a MAX Power of 6500W as clearly indicated on the Spec Sheet. So each MPPT is 3250W 1 Like |
Re: Solar Energy, A Complement To FTA by Ferdiwar: 12:23pm On May 05 |
Yes the 15kwh is battery (DIY EVE LF304Ah or EVE MB31 314Ah cells). They are the Hi-Mo 6. Ok I'll work towards the additional 6 panels as recommended after I get the extra battery. Thank you. jonescosmos: |
Re: Solar Energy, A Complement To FTA by jonescosmos(m): 12:23pm On May 05 |
Ferdiwar: No sir Voltage is constant because the 2 MPPTs are in parallel. Reason why their Amperages will rise (13A+13A) or (17A+17A) Max. So each MPPT has a Max Voltage of 500V DC |
Re: Solar Energy, A Complement To FTA by jonescosmos(m): 12:44pm On May 05 |
Ferdiwar: Ok, so let's take your total load to be 4KW, Plus 15KWh battery = 19KW Your Panels Power take 6KWp. On a sunny day, you need between 3-4 hours to fill your battery while powering your load at the same time. and once your battery is Full, the solar energy is far enough to power your load till sundown. See my Screenshot below
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Re: Solar Energy, A Complement To FTA by Hybrid600: 1:18pm On May 05 |
This is like my best thread on NL. The wealth of knowledge here is immeasurable. Thanks to everyone that contributes in one way or the other. @swagifted Where my Jos mango? 6 Likes |
Re: Solar Energy, A Complement To FTA by toscotech(m): 1:33pm On May 05 |
Powmr 60a for sale
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Re: Solar Energy, A Complement To FTA by Edrizz(m): 1:49pm On May 05 |
Re: Solar Energy, A Complement To FTA by toscotech(m): 2:30pm On May 05 |
Edrizz: 140K |
Re: Solar Energy, A Complement To FTA by mctfopt: 2:40pm On May 05 |
Oshomo12: They just stated the maximum PV wattage is 6000w, how you get to that is ok if you don't exceed their PV input current |
Re: Solar Energy, A Complement To FTA by mctfopt: 2:44pm On May 05 |
Ferdiwar: Those two panels you mentioned have Isc of more than 11A each which will exceed the yeye 5000ES Growatt's maximum PV input current of 22A 1 Share
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Re: Solar Energy, A Complement To FTA by Peterlove11: 3:31pm On May 05 |
Ferdiwar: Are the jinkos better placed than the longis in terms of orientation?......based on the numbers on the pix, it seems the jinkos are doing better in terms of generation |
Re: Solar Energy, A Complement To FTA by QuoteJust1nce: 7:01pm On May 05 |
mctfopt: Me think you're expecting too much from a 5kW / 450V input inverter that can do 580 * 9 at NOCT which gives around 5200+ out of 6000 available. If you're scared of NOCT, then STC can do 440 * 11 which give nearly 4900; using Jinko Panels as a case study. If it doesn't satisfy your needs, then upgrade to the SPH variant that offers ISC 33.8A, IMP 27A, 550V input accomodating between 6500 to 10600 Wp panels offering the same smart load functionality as the Deye. The 5kW version costs 1.3m and call it a day! 2 Likes |
Re: Solar Energy, A Complement To FTA by mctfopt: 7:23pm On May 05 |
QuoteJust1nce: Already bought the Growatt. Thanks for your input. |
Re: Solar Energy, A Complement To FTA by Trippledots(m): 8:29pm On May 05 |
TechGeek777: 🤐🫢 |
Re: Solar Energy, A Complement To FTA by Trippledots(m): 8:31pm On May 05 |
mctfopt: You sure you are actually reading the recommendations and advices given?? Calm down and read them o |
Re: Solar Energy, A Complement To FTA by ibietela2(m): 9:28pm On May 05 |
Good evening, please I want to start buying materials and keeping them instead of waiting to do it all at once. Which should I buy first? I was thinking of the growatt SPF ES5000, then panels and batteries. Which type of panels should I get and battery type too. Any other recommendations are welcome, especially ways or materials that will not cost me a lot but still be able to work Thanks |
Re: Solar Energy, A Complement To FTA by HeavenlyBang(m): 9:50pm On May 05 |
ibietela2: Start with knowing your peak typical load so you know what inverter to buy Then calculate how much storage you need for your load at night (I'd recommend night load * 15h to know the battery size you need) Then I'd say divide your battery size by 2 to know the panel output you need, so you can essentially have a full charge by 1pm on average days. 1 Like |
Re: Solar Energy, A Complement To FTA by S007: 10:22pm On May 05 |
jonescosmos: I have not made any comment here in years....... How am I not going to make this an epistle.... Thanks for your wonderful contributions. I think you are right on this one. But not entirely 100%. The OEM did not state the rating of the mppt tracker in their spec sheet. I strongly suspect that they chose to be silent on this for a reason. They know what they are doing..... I did a couple of deye installations of recent in two different places. I had to put 8 units of original Canadian solar 650W panels on 6Kw deye inverter and I ran into a dilemma doing the job. All panels installed together in the same angle. If I split the panels into 2 strings, the inverter will struggle to wakeup or run during the day. To make matters worse, if I choose to do the second string, I will have to run extra pair of 10mm cable over 40meters. At 5000naira/meter that is extra 200k. I was very angry and furious with deye on why they choose to be silent over this very important matter. Well.... i took matters into my own hands. I put all the 8 panels on one string and into one of the mppt tracker knowing fully well that I am not going to break any of the rules according to their spec sheet to avoid voiding the warranty. Kw, voltage and current all slightly below spec rating even on a single string. On commissioning, we were getting well over 100amps. In fact I had to limit the output current at some point to protect battery. Installation had been running for several months without any issue. My conclusion is that the 7.8Kw norminal rating for a 6Kw deye is for the internal charge controller and not mppt/2 as i also previously thought. After all, they did not state this in their document anywhere. Now... their could be reasons where you want to use only one mppt like in my case. Their will also be many reasons where I will want to use the 2 mppts like if I have enough panels, if cost of running cable for another string is no issue or if the installation is such that sun shines on one part of the roof in the morning and the other part later in the day and i need to take advantage of the two sides. Hope this helps. 2 Likes |
Re: Solar Energy, A Complement To FTA by ibietela2(m): 10:24pm On May 05 |
HeavenlyBang: I won’t power the whole house, just some essentials, I do that tomorrow |
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