Solar Energy, A Complement To FTA - Satellite TV Technology (437) - Nairaland
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| Re: Solar Energy, A Complement To FTA by DMerciful(m): 1:18pm On Jul 18, 2018 |
Impressive..... Congratulations. Waiting for more updates makavele: |
| Re: Solar Energy, A Complement To FTA by hancock(m): 5:57pm On Jul 18, 2018 |
Is it possible to generate maximum watts more than on the rated nameplate of a solar panel? I have 6 330w Canadian solar panels which is about 1980W combined. I’m surprised to see PVmax output for today as 2029W  Screenshot.....
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| Re: Solar Energy, A Complement To FTA by Saipro(m): 6:25pm On Jul 18, 2018 |
hancock:In cold weather, yes. In cloud edge glare, yes. When panels are underrated (to oust the competition), yes. When charge controllers overstate their performance or data, yes. Could these variables be stacked? Yes. 4 Likes |
| Re: Solar Energy, A Complement To FTA by hancock(m): 6:59pm On Jul 18, 2018 |
Saipro: Thanks for the explanations. Just wondering why manufacturers of charge controllers would want to overstate data. That’s suicidal and they can easily be rattled out  Samsung comes to mind....... |
| Re: Solar Energy, A Complement To FTA by mcTrinity(m): 8:33pm On Jul 18, 2018 |
Saipro: in cold weather  my observation with cold weather and early morning hours is that the Voc tends to rise (in fact, those are the times you have the max Voc) but the power and current stays minimal... close to zero personal observation though... |
| Re: Solar Energy, A Complement To FTA by SolnergyPower: 9:59pm On Jul 18, 2018 |
Used inverter for sale . MustPower 3.5KVA, 48V. Price: 70k. It has never been fixed neither opened. It's working optimally. 0803 334 3911
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| Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 10:54pm On Jul 18, 2018 |
This is correct for cold weather and early morning. What about a 26°C afternoon with full sun and clear skies such as we have seen in the last few days? You can easily overshoot nameplate in that scenario. mcTrinity: |
| Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 10:55pm On Jul 18, 2018 |
I concur Saipro: |
| Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 11:05pm On Jul 18, 2018 |
Lolz my Oga. Nearly all CCs overstate their solar harvest data even the vaunted MorningStars and Midnites e.t.c - they are typically over by 2 to 5%. I once raised this with a tech support guy (brand withheld) who remarked that the issue was not with the accuracy of the CC measurements but rather the accuracy of our own measurement instruments e.g your DC clamp meter will give an approximate reading of DC amps - same with a in line shunt which may suffer from heat related and other losses e.t.c at high amps when the resistance of the shunt changes and this is not accounted for in the algorithm of the meter attached to the shunt So who do you believe? - I would say, if you are within + or - 5% across your other measurement instruments that you are trying to use to verify your CC readings, just accept the CC's reading and move on with your life. hancock: 2 Likes |
| Re: Solar Energy, A Complement To FTA by Saipro(m): 7:38am On Jul 19, 2018 |
NiyiOmoIyunade:Well, ... early in the day, the incident angle of light rays is suboptimal (not to mention the luminous intensity of the sun) thus effective insolation is at it's lowest. Compare that to full sunshine around midday, right after a heavy (or even brief) rain shower. |
| Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 7:47am On Jul 19, 2018 |
I agree my Oga Saipro: |
| Re: Solar Energy, A Complement To FTA by mcTrinity(m): 8:11am On Jul 19, 2018 |
NiyiOmoIyunade: exactly... you can overshoot nameplate data at full sun glare.. at which the weather can't be cold. as the sun intensity increases, the Voc drops while the power and current increases... |
| Re: Solar Energy, A Complement To FTA by makavele: 8:51am On Jul 19, 2018 |
NiyiOmoIyunade: Full sun and clear skies? It's been raining back to back here for days; and when it's not raining, its cloudy, dark and hazy and i have been burning diesel like no man's business 3kw producing just 500w at end of day |
| Re: Solar Energy, A Complement To FTA by hancock(m): 9:26am On Jul 19, 2018 |
makavele: Are you in Lagos? that has been the situation in the past 2 weeks. if not that PHCN has decided to be loyal to augment the shortfall..... The spike in maximum watts was actually observed just about midday when it stopped raining and the sun came out blasting in full force briefly. That would tally with one of the variable deduced by oga Saipro |
| Re: Solar Energy, A Complement To FTA by Saipro(m): 12:25pm On Jul 19, 2018 |
makavele: You're having it really bad. I feel you. My worst was 1.8kW up until 4pm when the sun burst from the clouds and doubled the harvest over the next 2 hours. Same 3kW PV array. Yingli 250W panels |
| Re: Solar Energy, A Complement To FTA by SolnergyPower: 6:11pm On Jul 19, 2018 |
Used inverter for sale. Bluegate 5.5KVA, 24V. Price: 130k. It has never been fixed neither opened. It's working optimally. 0803 334 3911 1 Share
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| Re: Solar Energy, A Complement To FTA by JUO(m): 6:15pm On Jul 19, 2018 |
JUO: |
| Re: Solar Energy, A Complement To FTA by bigrovar(m): 7:01pm On Jul 19, 2018 |
makavele: The opposite has been the case here in Abuja (I know I just jinxed the weather).. Its been mostly clear blue skies with patches of cloud here and there.. you can see the logs from my weakest array.. which 3 days ago recorded my highest recorded peak of the year. over 800w for a 880w array. http://energy.bobby.com.ng/dashboard/view?id=7 |
| Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 7:33pm On Jul 19, 2018 |
Here in Lekki Lagos, I have recorded 24kWH to 29kWH harvest at least twice in the last two weeks and this from a 7.6kW West facing array.Sadly I don't really pay attention to individual array peaks but I'll check later today. bigrovar: |
| Re: Solar Energy, A Complement To FTA by kiekie1(m): 8:21pm On Jul 19, 2018 |
WE BUY DEAD/SCRAP BATTERIES!!! We also buy off scrap/dead batteries from any state (T&C applies) . 12v 200a ..... N16,000 12v 150a.......N12,000 12v 100a.......N8,000 Contact, Smartcell global services 081-350-31951 1 Like
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| Re: Solar Energy, A Complement To FTA by SolnergyPower: 9:42pm On Jul 19, 2018 |
Sir, with your permission, I do like to lift the content of one of the articles in website to our website and we'll adequately reference you. Your article URL is http://bobby.com.ng/2017/06/28/felicity-inverter-a-short-review/ Our website is http://JezPower.com Thank you. bigrovar: |
| Re: Solar Energy, A Complement To FTA by kiekie1(m): 4:53pm On Jul 20, 2018 |
kiekie1: Quantity procured : 20 units Sold: 19 units In stock : 1 unit left Location : Abule Egba , Lagos state ! Deliveries : We waybill to any state (T&C applies) Contact: Sir Frankie Smartcell global services 081-350-31951 1 Like |
| Re: Solar Energy, A Complement To FTA by garbamaza: 4:59pm On Jul 20, 2018 |
Dear Gurus, What's the consequences of combining 2-12v 150ah AGM batteries and a 12v 200ah to a 36v inverter. Thanks you. |
| Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 5:15pm On Jul 20, 2018 |
Nothing much Sir. While discharging/using the batteries the the 150Ah ones will give up all the useable power in them and be greatly stressed in the process - the 200Ah will still have some power left in it so it should not strain as much. When charging the 150Ah batteries will be overcharged and stressed/boiled in the process. The 200Ah battery may not get a full charge. Very soon all the 3 batteries will die. The 150Ah ones will die first from over charge and over discharge while the 200Ah one will die later from sulfation and undercharging. garbamaza: 4 Likes |
| Re: Solar Energy, A Complement To FTA by S007: 9:33pm On Jul 20, 2018 |
NiyiOmoIyunade: What an analogy. All die na die. The end result will be to sell the batteries to Kiekie as scrap. 7 Likes |
| Re: Solar Energy, A Complement To FTA by makavele: 10:40pm On Jul 20, 2018 |
And it's a wrap folks . . . So I took Mr Niyi's advice and gave the busbars some good spacing to prevent stories that touch,
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| Re: Solar Energy, A Complement To FTA by makavele: 10:41pm On Jul 20, 2018 |
Both bars installed and onto the next one . . .
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| Re: Solar Energy, A Complement To FTA by makavele: 10:43pm On Jul 20, 2018 |
And the final look . . . Replaced the sockets with 20A switches for input and output disconnect; the 3rd one up is for the automatic water pressure booster.
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| Re: Solar Energy, A Complement To FTA by makavele: 10:48pm On Jul 20, 2018 |
So at is my battery bank stands at: 19680 kWh and panels at 3kWp. The only issue I am having now is some of my batteries are out of sync. Would have to order more balancers before it's too late. And I think I would have to create a dedicated earthing rod brouhaha for the inverter system; because I am having issues with that annoying un-grounded current flowing through the inverter chassis when I am standing barefoot on the floor. How do I fix this please? |
| Re: Solar Energy, A Complement To FTA by S007: 1:49am On Jul 21, 2018 |
quote author=makavele post=69564967]And the final look . . . Replaced the sockets with 20A switches for input and output disconnect; the 3rd one up is for the automatic water pressure booster. [/quote] makavele: What a wonderful DIY job. I have seen quite a few DIY and ones done by 'installers'. This one will rank among the very good ones. Board is well arranged. Cables are well crimped, insulated and routed. I can connect with your thought process. I know you must have spent a lot of times thinking things through. It is not easy. Weldone sir! I have the following suggestions to make. You have already done almost all the hard work so these are probably improvement opportunities. 1. Replace the 20A switches with AC circuit breakers. Circuit breakers are the right component for your inverter input and output. They will serve two purpose. They will serve as disconnect and they will also protect your cables and inverter in the day of trouble. Cost is about the same as 20A switches. 2. Looking at the final picture, I can not see any protection for your inverter cable to battery. If it is there all well and good. If it is not there, there are different methods you can use. You can use a battery disconnect in series with an inline fuse. Alternatively you can use a DC breaker which will serve as both disconnect and protection. I prefer the DC breaker option. 3. For the battery issues, HA02 will do the magic. Oga Niyi has done justice to this one already. 4. Earthing.... earthing issues discussed some pages back. There is no 'one rule fits all' All inverters are not same. One good starting point will be to look at your inverter manual for earthing requirements, then move forward from there. To avoid writing an epistle I have to stop here. Weldone sir! 3 Likes |
| Re: Solar Energy, A Complement To FTA by Barezzi(m): 7:04am On Jul 21, 2018 |
Most times epistles are necessary S007. Great job Makavele! I second the motion above. A 6-way DB for your AC in/out, booster pump etc. This will fit nicely in that space cluttered with 20A switches. |
| Re: Solar Energy, A Complement To FTA by pranil(m): 8:00am On Jul 21, 2018 |
makavele: Congratulations lot of hard work has gone in it . The installation looks to me similar to Salvador Dali's painting.  Beautiful but not following the standards All wires are existing at an odd angle from the machines. the first rule of electrical wiring is the wires exist straight out of the box and then bent away on the insulation portion preferable after strain relief. When you open a normal 13 amp plug you will see that the space inside is left for wire to come out and bend and then clamped together on insulation before it exists the plug to avoid failure This is to avoid straining the connector and the wire near it's weakest point ( as it is stripped for the connection) this guide (especially point 5 and 6 ) will be useful for the D.i.y. installers - https://drive.google.com/file/d/1WqDrBT0sB5MrhoB0Joev8wTeCunOYs6F/view?usp=sharing 3 Likes
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