Barezzi's Posts
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EWU! You're looking for who to scam... You think everyone is from your re.tarded village! You could be the gateman with access to a third-rate camera and the internet. Step up your game bro, just a friendly advice. |
tenzino:I accessed that site from the office... I assure u the layers of protection here is beyond industry standard! You can add the web link to your whitelist, it wont be flagged again. |
tenzino:https://ibank.firstbanknigeria.com/FBN/ There's no such notif from my end... Are u sure your system is not infected??
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richmon74:The solar panels will be sized for daily energy use of 15kwh, while my battery bank will be sized for night time consumption of 9kwh. This will replenish the 9kwh used up at night, while supplying the additional 6kwh for day time use. I am assuming that they'll be no cloudy days! ![]() So for 5hrs of sun, a 3kw array will meet my daily energy demand. |
ilenaira: ![]() Na me first view your video... Very impressive. The only unfortunate thing is that I sold my gen many moons ago, would have loved to experiment. |
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salam12:I'm interested in ur battery spec. How much are they?? |
JUO:My thoughts exactly... I have never seen up to 32A from my 2.1kw array. Max has been 31A+ going to my 200Ah battery bank. Thanks to Bodejohn, I had to do a reassessment of my energy needs/production. My daily energy use is in the 15kwh region. With everyone home this festive season, my consumption will be maxed for the next one month! For 50% DOD, ignoring system losses, my battery bank capacity should be 30kwh. For a 48v system, this translates to 625Ah! My observations: From my 200Ah, 48V bank @ 50% DOD, I can only access ~5kwh. Yesterday, I had a record production of 6.5kwh by 4pm! but by 7pm, my inverter tripped!! ![]() If not for good ol PHCN, I would've slept in darkness... So, if my daytime production of 6.5kwh was exhausted by 7pm, this would imply my night time demand is ~8.5kwh. Instead of designing my system for 15kwh daily consumption, why not for night time demand of say 9kwh? 9kwh*2/48v = 375Ah! Doubling my bank to 400Ah instead of 625Ah will solve my current wahala... Barezzi & Sons Nig Ltd will save over N200k by this intervention! ![]() What are your thoughts?? |
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Medunah ![]() Chai! I love ur signature...lol! Abeg, permission to steal it |
Good stuff... I go add am to my war chest! |
badoolee: I was really worried for a moment there... |
badoolee: As in deep th.roating ![]() |
Nice one, the guy is everywhere... |
I killed it ![]() |
WOW This is very beautiful... Congrats bro Remember to honour ur vows! Too many married bachelors these days ![]() |
ilenaira:You could incorporate a smoke or heat detector to the start/stop switch of the gen. Upon sensing excessive heat or smoke, it'll automatically shutdown the gen. I sold my gen many moons ago, and my setup is not half as good as yours... I use my inverter for everything in my house, apart from the heaters & ac |
ilenaira I'm sure your generator will be redundant. Once your production exceeds demand, and with ur enviable battery bank, I doubt you'll start that ur gen in a very long time. By the way, what fire protection/suppression systems have u put in place, in the unlikely event that ur gen ignites the foam ![]() |
Very lovely setup, but your cables are flying all over the place... Do you have plans to make them neat? |
Nonso23:Best post I've read in a decade!!! You couldn't have said it better... |
tundebabzy: ![]() |
@ ilenaira, Nice one. Please confirm if you have seen up to 30A charging current per battery bank from your CC. |
tundebabzy:Yup you did... You say they're under-rated. I say they are not ![]() |
For some strange reasons, I cant attach the datasheets... i'll try again later. |
tundebabzy: ... Tunde, you still don't get it...Cell efficiency and the power rating of a solar panel are two different parameters. A solar cell at 50% efficiency simply means it can convert 50% of sunlight to electricity & heat at STC.(In very simplistic terms). The higher the cell efficiency, the more kwh(energy) of electricity it can produce. In practical terms, its akin to comparing the screen resolution of a Tecno phone and an iphone 6 of same dimensions . Imagine both phones are solar panels, and the pixels - solar cells. The Tecno phone with low efficiency cells, will produce low kwh(energy), whereas the iphone 6 with high efficiency cells will produce high kwh(energy). The practical implication of this is that for your limited roof space, u want solar panels with high efficiency cells. Whereas power rating is the amount of dc power the panel can produce at STC. That the cell efficiency is 50% does not mean that the solar panel performs at 50% of its nameplate power. The koko of the matter is if its possible for a 250w solarworld panel to deliver 260w, hence producing more than its nameplate rating. A solar panel technical datasheet contains all the info you need concerning any panel. There's a parameter called Power Tolerance, see attached datasheets... Power tolerance is a measure of how much higher or lower the POWER OUTPUT of a solar panel might deviate from its NAMEPLATE rating. Power tolerance for a 250w panel from the datasheets attached: Solarworld panels: +5%/-0% Sharp Panels: +5%/-0% Suntech Panels: +5%/0% The 250-watt Solarworld panel with a +5%/0% power tolerance can actually produce anywhere from 250 watts to 262.5 watts under ideal conditions. |
tundebabzy:At bolded, it refers to CELL energy conversion. That is its effectiveness in converting solar energy to heat and electricity. This is purely a function of cell design, and the quality of materials used in its construction. No panel has 100% cell efficiency. What's the industry average?? For your post in red, I suggest you read up on solar panel technology, it'll clear up a lot of misconceptions ![]() PS, I'm not holding brief for solarworld, suntech or sharp. |
No pix?? ![]() |
My eyes! ![]() Such terrible picture quality ![]() You cant afford a decent camera, and you want me to deal with you?? ![]() See better pic quality here: https://www.nairaland.com/1806048/pictures-lovely-finished-5-bedroom |
ETHIX:From your analysis, we're looking at savings of 14k for every 1,120 blocks. A bungalow will require about 5k blocks, giving you a savings of about 70k! That 70k is enough to erect a BQ ![]() |
urusky247:No idea. cc: kiekie, richmon74 |
bodejohn:The guys who handled my installation did a very bad job , they installed my panels directly on the zinc roof, and you know what temperature does to panel voltages, and its max power by extension.At least with mounting racks, they would have been some clearance for air circulation/cooling. I miss the feeling of DIY, I may teardown the installation and do it myself cc: GeorgeD1.Or get Richmon74 to do it professionally... |





