Pranil's Posts

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Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 1:41pm On Apr 02, 2018

davodyguy:
What I intend getting is a breaker to protect my CC from thunder or Surge.

With you're implying, this can't do it

Please do not use AC breaker in DC applications their designs are different. AN AC breaker uses the zero crossing of AC to extinguish arc while interrupting a current. For DC breaker it used electromagnets. using AC breaker in DC applications is a fire hazard

the following video is very instructive

https://www.youtube.com/watch?v=Cup5fMGaE2g

https://www.youtube.com/watch?v=S0diAeysxVo

https://www.youtube.com/watch?v=csMQ9A-4Pws

There are many suppliers here on Nairaland. You can ask for 50 Amp or 63 AMP DC breaker (nonpolarized preferred for beginners)

3 Likes

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 11:43am On Apr 01, 2018

mank1234:
For grid-tie solar inverter, if someone decides to use it without battery, will it still work when there's no power from the grid?

It will not unless you also have a Battery inverter like Victron or sunny island to support it with the simulated grid .
It is quite complicated, costly and potentially dangerous so best to be avoided for first time setup

known industrial combinations which are slightly easier to set up and available in Nigeria

SMA sunny island, and Sunny Boy
Victron Multi/Quattro and Fronius

Magnum and APssystms ( also branded by Magnum for their own use)

3 Likes

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 2:46am On Apr 01, 2018

lexi28:
Mr Pranil, mr Niyi et all.

I read that the axpert and its clones can be stacked. I want to know, will this require them being connected to the same battery bank? Will their outputs still be synchronized and load shared if they were connected to same-voltage but different banks.

Kiekie, Zeestone, makavele and the house...help with info too.

Thanks!

Not only Axpert but any inverter which is paralleled requires the same battery bank ( exception is grid-tie inverters running directly from panels)
The same is true if you need multiphase setup
The reason being the battery and AC side is not galvanically isolated and for paralleling the reference -ve ( or +ve) should be same

for axpert you need a parallel kit and have to replace the card inside both inverters.also both have to be connected with datalinks and current sharing cable ( see the ugly cable between two of my inverters )
also, cables from the battery and input-output AC should be identical and preferably similar in distance to allow perfect load sharing

2 Likes

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 2:36am On Apr 01, 2018

ceaser:
Plasma TV na terrible power hugger o. Recently changed LG 42 inch was rated at 600 watts.

Do you also place the fridge on solar comfortably as you do the deep freezer? Someone advised me that it is better to have freezer on solar than a fridge cos the former starts up at more frequent times than freezers do, the compressor thereby drains more stored power from high start up currents. He gave the same arguments for air conditioners placed on solar Inverters. Is this argument very valid in your opinion?

Opinions of other pros in the house are highly welcome.

The fridge draws more power because you open it frequently and it has normally larger volume with less stored energy ( running at 6-8 deg) versus -14 /-18 of the fridge.

if you use freezer like fridge it will also consume power. Check the nameplates or use power analyser to decide average consumption as every model is different but typically the bigger fridges have much more efficient compressor nowadays

1 Like

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 2:29am On Apr 01, 2018

nonoski:
LOL that's why I'm trying to get the circuit breaker disconnect amperage right so the breaker trips of when too much current passes through it.

Gentlemen, I cannot stress enough again. Breakers are to protect the source( battery) and cables ( in case of charge controller the breaker between Battery and Charge controller should be sized to trip based on the cable size and above the rated current of the CC).. e.g for 80 amps rated CC the next available breaker is 100 amps and cable will be 50mm2 ( rated 119 amp at 25 DEG C so at 40 DEG 119x .89 = 105.91) or go one size higher with cable if in duct or long run ( derating at 45 DEG is 0.79x rated current )

The breaker is installed between Battery and CC to take care of the case of CC failing and catching fire or cable melting away. If using only one CC you can oversize the cable to match the breaker size between Battery and inverter and avoid the breaker between CC and battery ( i prefer to have separate for inverter and CC for control and safety ).
if the CC is set to fixed voltage or system is 48 volts it will not fail. the failures mostly happen in multiple voltage rating CC's which autodetect system voltage based on battery. usually, the user manual will advise you to connect battery first in these CC's so that CC can power up the controller and set system voltage

If you are on budget use fuse links -

Also, take care while mounting DC breakers as some of them are polarized and the correct side should be facing the source ( battery) . Installed wrong way the breaker poles will just weld in case of a fault

The breaker between CC and panels is again kept to protect cables and CC catching fire. The solar panels themselves are able to handle short circuit without any issue ( you can try shorting a panel

it will happily provide the rated Isc current in the bright sunny day

4 Likes

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 2:12am On Apr 01, 2018

ceaser:
The links you provided do not appear to put the price and there is no way to place orders from the link. Are these product available on the common online malls (k*nga, J*mia and the likes) where orders can be placed. Please give the info. Thank you.

LG / Fouani has an online mall . Daikin comes sometimes on Konga keep a watch
https://www.fouanistore.com/lg-products/lg-appliances/lg-air-conditioners/lg-gencool-dual-inverter-1.0hp/

Key Features
Input required (Minimum) 0.7 KVA

DUAL Inverter Compressor™
10 Years Warranty on Compressor
70% Energy Saving
40% Faster Cooling
GEN Mode
Mosquito Away

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 2:07am On Apr 01, 2018

dejidotun2000:
Hello sir. Do you mind if I send you a mail ?

My email is in signature please feel free

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 2:54pm On Mar 30, 2018

On the issue of meters pls. find enclosed my meters
Most prized possession is Fluke 876B analyzer - It can measure THD ( Total harmonic distortion) and display waveform to verify if the inverters are really, true sinewave. also useful in measuring DC ripple as it can isolate base frequencies and amplitudes

Others are different multimeters(fluke, Chinese have more lying around), a sound level gauge, distance measure (grey is laser and other is digital tape ), wind speed measurement, leveling bubble meter )

Some of it is from old power commissioning days

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 11:04am On Mar 29, 2018

It seems Nigerian officials decided to follow Indian model on customs duties

Offgrid
Customs slowing down growth of solar power in Nigeria with arbitrary port charges – REAN

http://www.offgridnigeria.com/customs-slowing-down-growth-solar-power-nigeria-arbitrary-port-charges-rean/

Arbitrary charges allegedly levied on imported solar power photovoltaic (PV) parts by Nigeria’s Customs authorities have contributed to the slow pace of deployment of solar power to homes and offices in Nigeria, the Renewable Energy Association of Nigeria (REAN) has said. REAN, an industry pressure group set up in 2016 to push for broader adoption and deployment of renewable energy sources to cut down the country’s energy poverty, said at a press briefing in Lagos that Nigeria could miss its target of having up to 30 per cent of the electricity distributed to its people come from renewables by 2030 on account of the Customs’ levies. It also alleged that the port levies by the Customs have continued to deny Nigeria the benefits from a steady fall in costs of solar power components whereas other African countries with favourable customs levy have benefitted from this drastic cost reductions. In 2016, OGN reported that the Nigerian Customs planned to raise import tariff on solar power components. However, at the press briefing on Wednesday reportedly supervised by REAN’s president, Mr. Segun Adaju, the association called for a cancellation of such duty charges. OGN got details of the briefing from the official twitter handle of the association @REANigeria.
The association said that the Customs forces its members to pay between 5 per cent and 10 per cent import duty on solar panels. It warned that such high duty rates could escalate the cost of acquiring solar power in Nigeria. “Protests continue as League of Renewable Energy Companies in Nigeria set to mitigate against the effect of exploitation and extortion by @CustomsNG on imported solar products,” said REAN on its twitter handle. It added: “It has come to the attention of executive committee of the REAN, a leading private sector renewable energy group in Nigeria, that our members are being forced to pay between 5% – 10% import duty on solar panels by @CustomsNG. “This new import duty on solar panels by @CustomsNG may lead to hike in cost, derailing FG’s renewable energy plans.” REAN stated: “We therefore urge @FMPWH @UNDPNigeria @Nigeria @MBuhari @NGRPresident @NGRSenate @EBESnigeria @ProfOsinbajo @tundefashola @HMKemiAdeosun to take control of the situation and instruct @CustomsNG to stop the imposition of these charges on imported solar panels.”
Far-reaching impacts of alleged duty rates
Highlighting the impacts of the rates on its members operations, the REAN explained that discharge of imported solar components from the ports have been slow, while solar projects costs in the country could rise. According to it: “Consequently, discharge of goods from the ports has been slowed down immensely and demurrage charges have risen for our members since the start of the year. “The imposition of arbitrary port charges by @CustomsNG will accelerate value destruction in this industry and will cause prices to rise to uncompetitive levels. All over the world, the cost of solar panels is falling, hence increased adoption of renewables.” “This new tariff by @CustomsNG will increase acquisition cost of solar panels in Nigeria which are currently heavily deployed in rural areas where purchasing power is low.
“Even though under the CET code 8541.4010.00 – a classification for import duty tariff – import duty on solar panels should be 0%,” it added.
A call for help
REAN called on the Nigerian authorities to intervene in the development. It highlighted that at the moment Nigeria does not produce solar power components and as such cannot afford such entry barrier measures on solar components. It explained: “Nigeria currently does not have capacity to manufacture solar panels in volumes that can meet market demand hence our recourse to importation while growing capacity locally. “We therefore urge @FMPWH @UNDPNigeria @Nigeria @MBuhari @NGRPresident @NGRSenate @EBESnigeria @ProfOsinbajo @tundefashola @HMKemiAdeosun to take control of the situation and instruct @CustomsNG to stop the imposition of these charges on imported solar panels.” “This could derail Nigeria’s plan to generate 30 per cent of electricity through renewables by 2030,” REAN warned. “As concerned Nigerians, the members of REAN have answered the national call by providing solutions to the country’s epileptic power situation and provide over 10,000 direct and indirect jobs. @CustomsNG officials keep disrupting our progressive hard work. “This is apart from the other benefits like increased disposable incomes, improved environmental conditions (like reduced noise and air pollution due to displacement of diesel generators), the association noted.

1 Like

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 12:43pm On Mar 28, 2018

NiyiOmoIyunade:
Based on user reviews and field experience, (abeg no one should come and fight me o) I would recommend you stick with Quanta or KungLong or Monbat as first priority and only consider other brands next.

I will choose Quanta any day no expreince with Kinglong - Using them in office and they have turned out to be very accurate in terms of stated capacity and performance ( monitored with Victron BMV) -

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 12:31pm On Mar 28, 2018

babaegun:
@Pranil

Kindly give more insight into your weather monitor. How can we use this to predict the solar isolation? or it is just showing the live data only? It is a great project. Kudos to you. I may visit the site one day if you permit to see the setup and how it works.

Thanks.

It is an actual weather station connected to a small raspberry pi which uploads it to the internet and keeps a local database.
If you check on Wunderground it is GOLD star rated ( means accuracy has been tested for more than 5 consecutive days against other sources )

Your are always welcome. to visit . the same applies to anybody who is intreetd in information sharing

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 10:54pm On Mar 27, 2018

earthrealm:
thanks, thus going by the data on lung battery website and the charging algorithm of my inverter, knob 3 - LIFEPO4 appears to be the setting that is closest to the manufacturers recommendation. so am going to leave the knob on setting 3/lifepo4! ,. hope am correct?

cycle use = normal chargiging voltage
standby use = float charging voltage

now i need similar data for luminous and mecury fla batts

Use knob setting 4 - sealed lead acid. on Knob 3 Lifepo4 the absorb time will be very short as Li batteries don't like absorb

for flooded use 6 - FLA batteries are more tolerant of high voltages as extra voltage only causes gassing in short-term and water evaporation can be handled by just topping water . on my Luminous i use 54.6 for float and 57.4 for absorb

1 Like

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 2:33pm On Mar 27, 2018

pranil:
Battelborn ( in general all drop-in replacements)are too expensive as they bundle BMS which each battery and underrate the cell to increase life and charging inaccuracies.

900 USD for 1.2 KWH
BYD is 1000 Pounds for 2.5 KWH 48 V ( 6000 Cycles)

and herewin china is 3000 USD 10 KWH , 48 V( 2000 cycles)

But you have to spend atleast 300 USD to get a battery monitor and disconnector

if you calculate LCOE per cycle cost Lithiums are already cheaper and less of a worry factor than lead acid

if only shiiping cost come down !!

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 1:43pm On Mar 27, 2018

NoMoreTrolling:
Exactly! I'd rather buy more panels than batteries, but then again, one needs the extra storage cause with more panels, you'd just be losing so much power when batteries are full in good weather and then you can't even run for long on that limited battery storage if the weather is really bad, sigh

Hopefully, the price of lithium phosphate batteries keeps dropping. Right now, one can get 12V 100ah LifePO4 Battle Born Batteries for $950.
https://battlebornbatteries.com/shop/12v-lifepo4-deep-cycle-battery/
[
I will keep monitoring the prices so that when my batteries die in a couple of years, I can decide if it's economical for me to make the switch to Lithium.

Battelborn ( in general all drop-in replacements)are too expensive as they bundle BMS which each battery and underrate the cell to increase life and charging inaccuracies.

900 USD for 1.2 KWH
BYD is 1000 Pounds for 2.5 KWH 48 V ( 6000 Cycles)

and herewin china is 3000 USD 10 KWH , 48 V( 2000 cycles)

But you have to spend atleast 300 USD to get a battery monitor and disconnector

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 1:30pm On Mar 27, 2018

pranil:
In my opinion, follow the manufacturer Verbatim for volatges There is a reason they print it on the carton. if the charger is not temp compensated use the temp coefficient of similar make. I prefer to use lower charge currents though as C10 charging is proven to provide the highest cycle efficiencies

http://batteryuniversity.com/learn/article/charging_the_lead_acid_battery

I am impressed by the information in the battery catalogue ( wealth of information)

https://www.kunglong.com/en/Applications/BP/WPL

from the Kung Long catalogue - Charging Methods at 25℃(77 ) ℉
Cycle use:
Charging Voltage 14.4 to 15.0V
Coefficient -5.0mV/℃/cell
Maximum Charging Current： 60A

1 Like

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 1:25pm On Mar 27, 2018

earthrealm:
so, need a lil clarification, whats the optimum batt charging profile to use based on the data in the pictures below.

In my opinion, follow the manufacturer Verbatim for volatges There is a reason they print it on the carton. if the charger is not temp compensated use the temp coefficient of similar make. I prefer to use lower charge currents though as C10 charging is proven to provide the highest cycle efficiencies

http://batteryuniversity.com/learn/article/charging_the_lead_acid_battery

2 Likes

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 4:07pm On Mar 25, 2018

pranil:
if anybody is interested I have a similar device from my SUKAM days which allowed to maximize solar use based on battery voltage

the main limitation is 500 watt but I am sure the circuits can be modified to run external power contactors

https://www.aliexpress.com/item/Q4500W-solar-controller-with-intelligent-dual-power-transfer-function-24V-AC220V-240V-Free-shipping/32745597109.html

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 4:05pm On Mar 25, 2018

sinistrian:
The disconnect happens on the AC side (inverter output)

if anybody is interested I have a similar device from my SUKAM days which allowed to maximize solar use based on battery voltage

https://www.aliexpress.com/item/Q4500W-solar-controller-with-intelligent-dual-power-transfer-function-24V-AC220V-240V-Free-shipping/32745597109.html

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 3:52pm On Mar 25, 2018

NiyiOmoIyunade:
Oga Pranil.

To my mind, your decision to keep 2 backup generators is more of multiple points of redundancy vs. necessity. What with at least 3 different battery banks incl. 48v 200ah Lithium and 4 or more inverters, I struggle to see how you could run out of battery backup on a good day

More like you just incorporated multiple failsafes and layers of redundancy in your system design as a super Pro-DIYer.

For the petrol to gas/propane conversion kits, we have quite a few local alternatives here in Naija and Ghana that retail under 30k all in - they were all the rave a year or two ago. I just found a random link online now

https:///amuwo-odofin/home-appliances/3-8-10kva-dual-fuel-conversion-gas-kit-for-lpg-generator-5257294.html.

In my case I have an 8kw petrol gen. In the last 1 year, I only use it to give batteries a top up charge before we take them to clients to install or more recently borrow out to my neighbors when their own generator breaks from constant (ab)use .

In fact such little use did it see that the starter battery sulphated and died after 2 years and it only came on on rare occasions.

The 20 KVA comes with the house so cannot be removed ( plus have to maintain it ) angry

My daily consumption is almost 50-70 Units Main house, BQ with two rooms kitchen plus security quarters -
It's like four families under one system ( i support my neighbor with water pumping and booster also

)

Don't look at the solar share as I keep my system in ESS mode with keep batteries charged mode so solar and battery used only when the grid fails - and the contributions from 10 KVA inverters is not captured
My dilemma is the NEPA is too low @22 NGN to justify running down battery cycles. especially when the NEPA is paid by the company

And yes all my bulbs, water pumps fridges etc are maxed out in terms of energy efficiency including switching off automatically on schedule or movement except the Plasma TV which the madam of the house refuses to change

The Nigeria models for LPG are generic ones and will either run the engine too lean ( overheat) or too rich ( more consumption) There are many on Konga some as low as 7000 NGN

The model I posted is customized with the JET size for exactly the engine and frame size and does not void the warranty by Brigss and Stratton
and hopefully will not have any leakage issues
http://www.briggsandstratton.com/lam/pt/support/faqs/do-you-offer-any-conversion-kits-for-propane

I had the same problem with my generator batteries before. Now I use a small 20-watt panel with tiny charge controller. The added advantage it that the battery runs a small LED bulb( using charge controller Load side) in the night keeping the generator room lighted up for free

https://www.aliexpress.com/item/12V-3A-Auto-Solar-Panel-Charge-Controller-Battery-Charger-Regulator-PWM-L057-New-hot/32835425848.html

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 3:38pm On Mar 25, 2018

NiyiOmoIyunade:
Please between the LG and the Daikin inverter AC, which would you say performs better overall for the 1hp units?

I am about to pull the trigger on buying my first inverter AC and would be very glad to benefit from your experience.

daikin is approximately 10 % more efficient and much quieter - LG has more gimmicks including a phone app ( only for troubleshooting ) Also LG looks more futuratsic with white LED display behind panel while daikin has usual green red blue LED's

I ended up fitting bedrooms with Daikin and Parlour with LG - I have total 4 ac's running from my Ipower inverters

3 Likes

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 3:35pm On Mar 25, 2018

sinistrian:
I just finished constructing my Low-Battery disconnect device (actually it's just a pair of relays) and testing it now. It will be controlled by a BMV-702, but i'm simulating the DC voltage from a 7ah battery. Looks like it's working pretty well.

I used to use SCR for my generator changeover but they tend to get pretty hot and are quite lossy ( apart from switching surges)

Victron has a product called battery protect which does the same thing around 55,000 NGN

https://www.victronenergy.com/battery_protect/battery-protect

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 3:32pm On Mar 25, 2018

sinistrian:
Thank you for this pranil. Any endpoint/api i can integrate into my own monitoring system?

basic data -

<a href="http://www.wunderground.com/weatherstation/WXDailyHistory.asp?ID=IABUJA3"><img src="http://banners.wunderground.com/cgi-bin/banner/ban/wxBanner?bannertype=pws250_metric&weatherstationcount=IABUJA3" width="250" height="150" border="0" alt="Weather Underground PWS IABUJA3"></a>

or API - be7fc5493e144f07 ( https://www.wunderground.com/weather/api)

If you find a suitable application let me know as most of them don't show solar DATA - I resorted to using WEEWX ( http://www.weewx.com/) on raspberry pi and remote VNC whenever required . The vnc acess allows me to check ICC for ipower and victron venusGX in one location

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 3:04pm On Mar 25, 2018

ANEB:
Is there anyone in the house using this battery?

LiFeYPO4 Lithium Iron Yttrium Phosphate Battery

I do like to know your experience and the cost.

Are they available in Nigeria ?
what about BMS
otherwise the BLUENOVA and freedomwon are better SA brands with lot of users and a good record.

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 3:02pm On Mar 25, 2018

dapsyra:
Today will go down in history as my poorest harvest since I ventured into renewable energy more than 10years ago.

There was just NO SUN in Abuja today. It rained almost all day.

I managed to harvest a meagre 3.000kWh ==> an efficiency of 0.667kWh/kW.

I have never had it so bad!

you can always check actual solar insolation from my weather monitor ( installed in Wuse 2)

https://www.wunderground.com/personal-weather-station/dashboard?ID=IABUJA3

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 3:00pm On Mar 25, 2018

NiyiOmoIyunade:
Again most offgriders abroad keep a small backup Gen for emergency power just as Oga DMerciful said. Just last month, I bragged to one of my sceptical clients that if I had NGN3Million to spend today, I would certainly apply it towards getting a Lithium battery bank and 1000w more in PV panels vs. using it to buy a 20kva Diesel Gen.

Such is the level of confidence I have come to have in the sustainability of solar power and the offgrid life.

Despite having a lithium bank I do keep around a DC Generator capable of charging at 2.5 KW ( 50 AMP DC) The gen switches off once the battery is full ( charge current below 10 amps) -

Planning to convert it to GAS to avoid the hassle of petrol. Purposefully bough a manual start to avoid batteries cheesy

- My 20 KVA generator requires it's own solar panel to keep the starter battery charged. It has been used for 30 hours since last August most of it maintenance runs

http://www.geargb.co.uk/product/3010-BRIG-95/BandS_XR950_Series_Frame_Mount_LPG_Propane_Conversion_Kit_(Dual_Fuel)

In fact this solution may the best for small residential systems as you get best of both worlds. Clean uninterrupted power from Inverter ( no changeovers) and lower fuel bills as the gen either runs at full capcity only when charging battery - itis a small 200 C engine

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 2:52pm On Mar 25, 2018

duwdu:
Please share at least one link to the product page.

........
P34c3
.....
...

It has been posted by me earlier LG dual cool and Daikin inverter range
https://www.fouanistore.com/lg-products/lg-appliances/lg-air-conditioners/lg-gencool-dual-inverter-1.0hp-clone/

https://www.deluxe.com.ng/air-conditioner/daikin-air-conditioner-inverter-r410-9000-btu1hp-ftxv-25av1

1 Like

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 5:00pm On Mar 23, 2018

babaegun:
@ANEB

.

Wow! this is painful. The solar charging part is faulty. Hope this is not a drawback for hybrid systems? The proposed FM 80 will fix the issue but it means spending more. For me, I don't charge my batteries at all with utility power again. I completely disabled it. I hope you will be able to do this when you increase your solar panels anyway.

Cheers.

The Ipower has an issue with the firmware which leads to this phenomena - can be fixed by uploading Coulombs firmware d.i.y route ( that's what I run on my ipower/zinnox)

My flooded batteries are running since last 3 years and the midpoint between two separate banks of luminous and sukam is still below 0.2 % showing effective equalization and absorb

description of the BUG

http://forums.aeva.asn.au/viewtopic.php?title=pip4048ms-inverter&p=59896&t=4332#p59896

The latest pateched firmware ( BETA USE AT YOUR OWN RISK)

http://forums.aeva.asn.au/viewtopic.php?p=66664#p66664

1 Like

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 4:11pm On Mar 23, 2018

bigrovar:
I know a guy who usually does the work for Zinox. He is quite capable 07035954213

Valxxx

Comes to me for advise time to time - Did some of my installations also. I am looking for somebody who can use proper tools without explanation e.g. if hole has to be cut in junction box then use a hole cutter and then apply grommet or gland as necessary.

Obviously, I have the materials and the tools but this time around no time to personally supervise

1 Like

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 4:18pm On Mar 22, 2018

Is there any recommended installer in Abuja for doing quality jobs

Based on my annual tradition I am adding 1 KW on the roof and would like to take the opportunity to rearrange my strings
So basically supply 1kW panels, 6 mm2 cable, aluminium rails etc. (rails including existing 10 250 Watt panels)

wbr

Anil

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 2:10pm On Mar 21, 2018

[img][/img]

NiyiOmoIyunade:
If his budget can accomodate a servo stab then 5kva is more than enough for his 1.5kva inverter.

5kva is also the smallest size of servo stab I have ever seen available locally but I could be wrong

AVS30 is more than enough unless the voltage goes so low that Invertr drops it and refuses to charge batteries

But please buy the genuine one the duplicated ones do not have setpoints and cheap relays and fail on heavy duty loads

My Ipower 5 kva's have been running with twp AVS30 without any issues ( i see regularly 250/255V in Night during rainy days as the tarfo is lightly loaded )

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 7:11pm On Mar 18, 2018

anochuks08:
Sir, whats the performance of your wind turbines? I am thinking in that direction and would really appreciate your input.

Don't bother with Wind unless you are in a very windy area ( read on the coast ) or top of the hill.

The 200 Watt turbines make enough energy in a week what a single 200 Watt panel does in an hour . the turbine will need 12m/s to reach rated power

I have both the wind meter tester and horizontal shaft for sale for the brave guys out there. I will keep the vertical shaft as pon occasion it produces some power

1 Like

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by pranil(m): 11:55am On Mar 08, 2018

nonoski:
Thank you for response.
So it will be better to connect the 12Nr 300w
in 2 series to get 6 strings?

Please between Fangpusun FM 80A MPPT and VICTRON ENERGY BLUESOLAR MPPT 70A which is has a better algorithm and can be hocked up to the internet .

Thank you

personally, I have not used Fangpusun but I am using Victron chare controller inverters BMV etc and they are very good sturdy products. The Victron software development is legendary with access to open source and user forums. If you like to tinker and like remote monitoring get Victron. By adding a 35 USD pie and their opensource venus software you get access to VRM portal which helps you keep logs and performance data up to 5 years or more

Have a look at my website on what is possible. ( be sure to click on the advanced tab to see all graphs)

https://vrm.victronenergy.com/installation/12623/share/97b72cbb

https://github.com/victronenergy/venus/wiki/raspberrypi-install-venus-image

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