A more machanically talented guy from my office helped me install ( actually he did the install I just watched � ) over two days this weekend the first wind turbine
I was also in parallel installing the BYD LIfepo4 batteries – 10 KWh 48 V
I have also on order a Vertical Axis 300 Watt wind turbine to compare. Will be installed next year
Now I have Four different RE models running in the same house
1. Pure Offgrid – 24 V DC Solar PV+ Wind – AGM batteries – 3KWH. 0.8 Kwp Solar 2. DC coupled Hybrid – Grid + Solar PV + Diesel, 48 V Flooded lead acid , 20 KWh( 10 KVA peak) – 2.5 Kwp solar 3. AC coupled Grid Tie ( normally running in islanding mode daytime) - Solar PV +Diesel Hybrid + Micro Grid inverter ,Lithium batteries – 10 KWh ( 5 KW peak) , 48 V DC – 3 Kwp Solar 4. Solar thermal – 120 Litters EV tube water heater with PV Solar assisted 1.5 Kwp heater and 100 watt water boost pressure pump
detailed specs – Horizontal axis
Model FT- 200S Generator type 3 phase rare earth Permanent Magnet Generator Rated power 200W Maximum Power 230W Rated voltage 12/24V Generator net weight 12Lb Service life 20-25years blades Nylon fiber Number of blades 3 or 5 Wheel diameter 1.3m Rated rotor speed 400r / m Start-up wind speed 2.0m / s Rated wind speed 11.0m / s Survival wind speed 60m / s Regulating way Electronic magnet/yaw Lubricating grease
oh men, this is fantastically fabulous... the sky is your starting point and the sun is your limit.
more grease to your elbow... more sun to your roof... more wind to your compound... more money to your bank account...
bigrovar: Neither of mopower, multipower is a brand of sukam!!! I have spoken to sukam reps and they totally deny such claim which seem to have become gospel even on here. Mopower is some clone of sukam made to ride on the reputation of the latter.
I appreciate the contribution...
but why does Mopower inverters bear Sukam logo on them.? I've even seen the DSP board of mopower 5kva and it bears on it that Sukam "S"-like logo on it. in addition to the one on the external body of the inverter
Infinitikoncept: Update We just installed yesterday and from findings after using another 3.5kva brought by the technician today we discovered the mercury inverter you sold is bad. Testing with a bulb it shows blue then red Light with a loud noise and we had to call another expert in Zaria who confirmed the symptoms as either a bad IC or a bad programming. What's the way forward?
mbok, this forum is strictly for knowledge sharing and general problem sharing... not for personal problems. I believe you have his number. call him; whatsapp him; email him; warehouse him;
The system is 48V. The battery bank is made up of two (2) strings of 370AH each connected in parallel to give 740AH. The PV Array is a total of 5.3KW in two strings connected to two charge controllers.
The loads are merely a description of what would be powered by the inverter, rather than what would be powered simultaneously.
Cheers
in addition to what Pranil suggested, if you can't go for those high end inverters he suggested due to price, you can go for Sukam/Mopower 5kva/48v. they're both Indian (manufactured by same company)
But please note that though the aforementioned Indian brands are know for their ruggedness, you can consider them if you know that you're actually going off-grid. they don't have the capacity to charge that battery Bank through mains supply.
Nevertheless, with your Solar capacity, I believe you won't have under charging issues
JohnKester: Suppliers/Dealers/Engineers etc in the house.
I am in need of a Pure Sine Wave Inverter (inverter only). I do not need the charger as I live completely off-grid and charge my batteries with my PV arrays only. I have a backup generator, but I do not charge the batteries with it. It is purely for backup. The capacity of the Pure Sine Wave Inverter only should be between 6KW and 8KW, and able to power submersible pumps, refrigerators, air conditioners, pressing irons, washing machines, dryers and other household appliances and office equipment. It should also be able to power small power tools such as drilling and cutting machines
The inverter should be a low self-consumption inverter.
Cheers
Hmmmmm... all the loads has "s" to them. Not just one of each but many of each.
why not kukuma use the inverter and power the generator too
curvilicious: Plz how much will it cost to acquire or get an inverter that can carry a fridge & other basic hime appliances? 2. What is the size in terms of kva? Will it interfere wt electrical connection of the landlord's house? I also want to know have answers to the above questions in the case of solar ? Thank you
if fridge is the only heavy appliance, you'll be looking at getting 3.5kva or 4kva, depending on the Inverter brand
unless you're staying with your landlord, it shouldn't affect his connections...
regards the Solar aspect, you need to determine how you'll run the loads in terms of hours. then you need to determine the number of batteries. Before you can now size your solar system
better yet, just get a bottle of wine, relax in your bedroom (not necessarily Ikoyi express way.. Lolz) and then read back through the thread. Apart from getting to know how to properly size your system, you'll be totally amazed what you'll learn.
sizing your system is one thing... but knowing how to safely run the system is entirely different; and that's the key to enjoying the Solar system.
Read back if you can and you'll find answers for both your present and future questions
efuro: JUO don't need advert anymore. Just label ur product "JUO" and go to sleep with your two eyes closed. His prices on konga are splendid. Everyday i set my eyes on the items I got from him, I always wish him well.
Whatever you do, people know and understsnd. Pls don't be tired of doing good.
Thumb up to JUO.
@ GeorgeD..
I hearby promote you to the rank of "Group Captain ". Yes! Captain of DIYs To be decorated when dollar comes down significantly.
Efuro, I disagreeingly discord with you (engrish)..
but, seriously... "Group captain" can you promote Dangote to Managing Director of Dangote Groups when he's actually the CEO
Mbok, biko, please, George is the founder and patron of this group and also the father and grand-patron of DIYs as far as RE is concerned!!!!!!
it has really been a very tortuous journey for me. i set out looking for the best and most economical way to replace my tristar mppt-60 which obviously was undersized for my solar array and i searched in a number of places, contacted quite a few sources both here and outside the forum and ended up disappointed. i noticed that most sellers still carry prices of items calculated at an exchange rate of 450 to 550 naira to the dollar. over seven months after dollar has reduced to 365 naira and below, these peeps choose to bury their heads in the sand and pretend not to be aware of the current realities. in comes juo the life saver! here was i chatting with this unassuming seller on this thread via watsapp and narrating my ordeal to him and the next thing i knew he was already making arrangements to get me a midnite solar classic 150 at an incredibly mouth-watering price. initially i thought it was all a joke until i got that much anticipated call from him telling me that my cc was ready for collection. at the end of the day when i compared what i paid to the amount that a popular online store is selling their midnite, i just shake my head in disbelief.
not only has juo proven to be a reliable guy to deal with, he has always been consistently delivering quality products at unbelievably low prices and this successful deal adds another feather to his cap.
JUO is the man indeed!!! even outside the forum, he's always ready to explain and share his knowledge without any reservations. "whatever a man sows, that he also reap". he'll continue to reap the benefits of his good works
Good morning guys... please I have a small challenge. I'm trying to access an Epever SCC (ET6415BND) with a laptop. I've successfully installed the software but the laptop can't communicate with the SCC... what could be the problem... thanks
ajaolu: Please house I urgently need your help. I need to buy a 24v pure sine wave inverter at most 1.5kva capacity. I am currently considering a BTS inverter which I saw on Konga and Jumia, please is that a good inverter? Which other one can you recommend. Thanks.
It has been bad trying to post here in the last few days particularly if you don't copy remarks before posting them.
the inverter is Microtek 1,600w (2KVa).
In addition to your views above. do you think DC Amps drawn by the inverter is same as AC Amps irrespective of the waste due to conversion? I know DC watts is not = to AC watts
if you have 500w load on a 24v inverter system, it will draw 2.2A from the AC side P=I/V I=P/V = 500/230 = 2.17A
but from the DC side, it will draw 21A 500/24 = 20.8A
Energy can neither be created nor destroyed but can be changed from one form to another. power on AC side is equal to power on DC side (assuming perfect system without loses). The only parameters that varies are current and voltage
Refa: The 20hr or 10hr just means that it is discharged to 1.75V per cell over a period of 20 hours or 10 hours while the total amp hour supplied is measured. But this does not mean a 20hour rated battery is necessarily better than a 10hour rated battery.
Example; Rolls Surrette S-605 L16 Battery is rated at 100hr for 605AH, 20 hr at 468AH and at 10hr for 398AH. Note that this the same battery, the only thing that changed here is the load that was used to discharge the battery.
So the numbers can make a battery look better if a 100 hr rating is given for a particular battery.
Because of the Peukert effect, batteries turn to deliver more AH if they are discharged slowly (low amperage draw) and lower AH if discharged fast (High average draw). So a 200AH at 10hr, may be better than a 200AH at 20hr.
thanks for your explanation... my major concern was whether the two can be paralleled together: got 4 batteries (200Ah @20hr) I installed for a client (for 48v system). 2weeks later, I got another 4 batteries of same brand but 200Ah @10hr. But I've paralleled the two banks. hopefully, there won't be discrepancy due to different hour rating
mank1234: What's the difference? The one rated @10hr means the capacity is 200AH if current is drawn such as to deplete it in 10hrs: it will give you 10hrs at constant current draw of 20A.
The one rated @20hr means the capacity is 200AH if current is drawn such as to deplete it in 20hrs: it will give you 20hrs at constant current draw of 10A.
If you prorated both at the same hour rate, the one at 10hr has slightly greater AH rating. Reason: the larger the current drawn from a battery, the lower its capacity. So the one rated 200AH at 10hr might have capacity of 220AH at 20hr.
Can you mix them? Depend on how you want to mix them and on their respective age. If the older one is still good you can mix but you must balance the mix by ensuring that all strings have same number of old and same number of new batteries. Add battery balancer to the setup to prevent sudden failure of the old ones. In principle, we are advised not to mix old and new batteries.
wow! thanks for that wonderful explanation...
the "old" battery (200Ah @20hr) bank is not actually that old. it's just two weeks. just paralleled the new bank (200Ah @10hr) to it today
please gurus, what's the difference between battery rated @20hr and the one rated @10hr..
Installed a battery rated @20hr... wanted to upgrade the battery bank and I got the same battery but this one now is rated @10hr. both 12v 200Ah.SAME BRAND!
Feshizzy: Do note that ac and fridge draw x3 for their rating on starting up though,
50kva would be good, 20kva would be overpowered by all these appliances
50kva? bros, they're not planning to power a community... I'll go with the 20kva as suggested by Barezzi, as long as the loads won't be allowed to come ON at the same time. Switch on one AC, give 5-10secs before switching ON the next. or better yet a Time Delay On Energise (TDOE) relay (timer) can be incorporated to the surge loads
BasedOnB: Hello everyone, i need some quick advice here please.
I have a 800 VA sukam inverter, a 250 W panel, and a 30 amps PWM controller. My current 150 AH battery is long due for replacement, so i am thinking of replacing it with a new 200 AH. My concern is that the panel may take too long to charge the battery full, even though i don't intend to discharge it to more than 50%. Am i just better off with a smaller battery, say a 150 AH or 100 AH?
I also need recommendations on reliable battery brands to buy (preferably from experience), i kinda believe the so called 'telecom' batteries are solid, even if they are more expensive.
you didn't state your load...
concerning battery brand, you can go for Ritar/sukam/safepower
kiekie1: Hello, i do not agree on the SOC readings stated above .. EP solar (I tracer) rarely does that , guess your (e tracer) might have developed software issues tho .. I have used I Tracer 60a mppt for a while now with ext battery volt sensing cables and temp cables attached & no issues .. Even at 45/50 degree mppt sink temp, it works good .
NOTE , there is a slight variation between I tracer & E tracer series which most users don't know as they go with the ideology that its just "load port" differentials .. I have brand new I Tracer 60a mppt at give away prices of 160k per unit .. Cheers
yeah... eTracer and iTracer are both manufactured by the same Epsolar and both are great SCCs... the picture below is the observation... Now the battery was already at LVD (Low Voltage Disconnect) which is around 44V or so, and the SOC was showing 93%... the voltage sensing cables and temperature sensors are both connected... The SOC algorithm is what Epsolar needs to work on in the eTracer series
earthrealm: though i hate 2 things about my 60a epsolar cc, especially the first point, its standard on MS n fangpusen CC
1. the log is not robust enough, it doesnt log daily kwh/ah harvest daily 2. its soc algorithm is wack, always wrong
Lolz... the SCC SOC algorithm is designed to read in inverse proportion to battery voltage (imagine!) ... I usually see readings like SOC 45% at 50V SOC 60% at 49V SOC 95% at 47V SOC 100% at 46V.... what the heck!!!?
Lwkmd4h! initially I thought it's either recession was affecting my sight (Lolz) or I don't really know what SOC is again..
But then, Epsolar is a monster!!!! vomits current like kilode!
cwoods2609: Thanks for the advice, what is the best position to face solar panels east or west to get best results
none of the above.... best is south (a little bit tilted) Face it to the east, you'll only have optional performance during sunrise face it to west, you'll only have optimal performance during sun set... just my contribution
there are pros that can answer better thanks cheers
Satellite TV Technology › Re: Solar Energy, A Complement To FTA by mcTrinity(m): 10:00am On Nov 07, 2017
