Solar Energy, A Complement To FTA - Satellite TV Technology (349) - Nairaland
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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 4llerbuntu(m): 2:51pm On Feb 06, 2018 |
This time, South Australia wants to build a 250MW virtual power plant. The plant will consist of thousands of solar panels and batteries running software that decides when the batteries charge and discharge to maximize efficiency and value to the grid. why is this not even a mainstream thing? i've often wondered why there isn't some system that cuts off the inverters discharge when the batteries get to a particular percentage... 1 Like |
| Re: Solar Energy, A Complement To FTA by idsolar(m): 2:53pm On Feb 06, 2018 |
@efuro. E11 error occur if ur batr go lower than lvd then goes off immediately ur batr pass lvr presets 1 Like |
| Re: Solar Energy, A Complement To FTA by earthrealm(m): 3:00pm On Feb 06, 2018 |
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| Re: Solar Energy, A Complement To FTA by bigrovar(m): 4:58pm On Feb 06, 2018 |
4llerbuntu: Such systems already exist especially with premium (code for very expensive) offgrid solar equipment Some Inverters, and Hybrid Inverters come with built-in low battery disconnect. The reason why you don't see it everywhere is because determination of a battery state of charge is not as easy as ABC. Battery state of charge can be very complicated and is a product of the the Age, rate of charge/discharge, temperature etc. All the above have to be guessed right and its never easy. This is why it is best to design your system around ensuring it is cycled between 40-35% of the battery capacity. That way you won't have to worry yourself about Low battery disconnect systems. 1 Like |
| Re: Solar Energy, A Complement To FTA by efuro(m): 6:44pm On Feb 06, 2018 |
idsolar: Nagode Sir |
| Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 7:02pm On Feb 06, 2018 |
Welcome to the forum Sir. Please tell us the different appliances you wish to power off your solar system and inverter. You can revert with a list of appliances and how many of each e.g fans you have and how long they run for everyday - if you know their rated power consumption all the better but not required. With this we can provide the support and advice you need. andymola: |
| Re: Solar Energy, A Complement To FTA by andymola(m): 7:22pm On Feb 06, 2018 |
NiyiOmoIyunade: |
| Re: Solar Energy, A Complement To FTA by mank1234(m): 7:47pm On Feb 06, 2018 |
Question for honourable lithium users: Assuming one already has Morningstar MPPT charge controller and he or she decides to incorporate lithium battery, how will the charge controller charge the lithium battery since it doesn't not have settings for it? Does lithium also use three stage charging algorithm? How do you incorporate with existing infrastructure? |
| Re: Solar Energy, A Complement To FTA by DMerciful(m): 8:54pm On Feb 06, 2018 |
Most lithium batteries designed for inverter usage comes with BMS(battery management system) that ensure the lithium battery is not overcharged or overdischarged and consistent with multiples of 12v and besides they have been adapted for direct plug and play to easily replace lead acid batteries. For mine, no setup, just connect and use. mank1234: 1 Like |
| Re: Solar Energy, A Complement To FTA by makavele: 9:02pm On Feb 06, 2018 |
mank1234: You can always create a new charging profile for each individual battery type. |
| Re: Solar Energy, A Complement To FTA by mank1234(m): 9:59pm On Feb 06, 2018 |
DMerciful:This is cool. Thanks. Please more clarification: Does it mean that irrespective of your charger settings (flooded or vrla or gel), the BMS will conditioned it for the lithium battery. |
| Re: Solar Energy, A Complement To FTA by DMerciful(m): 10:08pm On Feb 06, 2018 |
In the manual, the recommended voltage range is quoted and it normally falls with the AGM-Gel range. mank1234: 1 Like |
| Re: Solar Energy, A Complement To FTA by mank1234(m): 10:28pm On Feb 06, 2018 |
DMerciful: Thanks for this info. My battery is just a yr old. I'll definitely look this direction when it due for replacement. |
| Re: Solar Energy, A Complement To FTA by dapsyra(m): 10:52pm On Feb 06, 2018 |
mank1234: Lithium batteries require only two stage charging algorithm; Constant Current (CC) and Constant Voltage (CV) charging. Set the Charge Controller to the maximum charge voltage for the battery pack in accordance to the battery chemistry and manufacturer's recommendation. This is the equivalent of Absorb Voltage in AGM/Flooded Batteries. It is advisable to use a value slightly lower than the max voltage in order to prolong the life of the battery. For instance, LiFePO4 chemistry has nominal value of 3.2v, minimum discharge is 2.5v and a maximum charge voltage of 3.65v per cell. A 12v pack usually comprise of 4cells in series to give 14.6v max and 10v minimum. So you have to set the Charge Controller absorb voltage to 14.6v. A slightly lower value of 14.2v will ensure that the pack is not fully charged, thereby prolonging the life of the battery exponentially. Most Lithium batteries can be charged at up to 1C during the CC phase until the max charge voltage is reached. The Charge Controller then enters the CV phase. The battery is considered fully charged when the charging current drops to about C/24 during the CV phase while maintaining the max charge voltage. Lithium batteries are very intolerant of over charge or over discharge. Incorporating a good BMS into the pack will manage the charging and discharging processes effectively. The BMS will ensure that none of the cells go above the maximum voltage or below the minimum voltage and also keep the cells voltages balanced. 3 Likes |
| Re: Solar Energy, A Complement To FTA by SolnergyPower: 1:49am On Feb 07, 2018 |
Brand New 200Ah, 12V Sunfit Inverter Battery ₦75,000.00 only with warranty! Date of Manufacture: October, 2017. Ideal for Solar, Inverter and Telecoms use. Limited Stock Available Call: 0803-334-3911, 0803-860-4143 WhatsApp: 0803-334-3911
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| Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 5:00am On Feb 07, 2018 |
If you acquire Lithium cells + BMS, you can either allow the Lithium BMS to regulate charge for you or in the absence of BMS you can just use MorningStar dip switch setting number 4, 5, 6 set to 'On - On - On' for custom charge profile programming and then dip switch setting number 8 - Ethernet Security (Write/Edit/Configure Over TCP/IP) to 'On' as well. With this you can use a PC running the MS View software with a serial OR ethernet (crossover) cable to setup a custom charge profile with voltage and amperage settings of your choice and especially an absorb charge time limit of 1 minute. This method will perfectly replicate the charging functionality of any BMS and the only thing left to cover would be Low Voltage Disconnect and Battery Balancing (for this you can buy the ZHC (my preference for wiring simplicity) or Victron or Fangpusun battery equalizers. I personally hate the idea of multiple individual BMS with all the wiring complexity and multiple points of failure. One single unit of the ZHC HA02 equalizer will balance 2 or 3 or 4 individual batteries as required (you just cut off or tape off the terminals you don't need I am currently in charge of a small experimental system using Lithium cells without BMS with an inverter with DoD cutoff for LVD, ZHC battery balancer for keeping cells in sync and a MorningStar MPPT with a custom charge setting and absorb time of 1 minute. A few months now and all is running smooth mank1234: 2 Likes |
| Re: Solar Energy, A Complement To FTA by kiekie1(m): 7:21am On Feb 07, 2018 |
kiekie1: Trojan Solar Deep Cycle AGM Battery 6V 315Ah (C20) 1700 Cycles @ 50% DOD 1 Like
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| Re: Solar Energy, A Complement To FTA by kiekie1(m): 7:27am On Feb 07, 2018 |
efuro: I am glad you are happy ! You can call on us anytime Sir . Cheer's 2 Likes 1 Share |
| Re: Solar Energy, A Complement To FTA by viperVIP: 10:43am On Feb 07, 2018 |
SolnergyPower: How many months warranty?? Any consumer review on the product yet? |
| Re: Solar Energy, A Complement To FTA by SolnergyPower: 10:46am On Feb 07, 2018 |
6 months warranty. I don't have any review for now. viperVIP: |
| Re: Solar Energy, A Complement To FTA by 4llerbuntu(m): 12:00pm On Feb 07, 2018 |
bigrovar: I don't understand this part. the user still has to monitor the batteries and rely on whatever figures the inverter gives, no? |
| Re: Solar Energy, A Complement To FTA by viperVIP: 12:03pm On Feb 07, 2018 |
is there any installer here who is close to Iwo, Osun State?? |
| Re: Solar Energy, A Complement To FTA by 4llerbuntu(m): 1:29pm On Feb 07, 2018 |
NiyiOmoIyunade: Permit me to tap into this: 1 LCD TV (42 Inches) about 7 years old now, so i don't think its energy efficient like that Average 5 hrs daily 1 1HP window unit A/C Average 10 Hours daily 1 Deep freezer (small size Haier Thermocool) reasonably efficient (24/7 on PHCN but does ok with 10 hours daily) 10 Energy Saving bulbs Average 4 hours 2 Ceiling fans average 4 hours 1 Desktop (used as HTPC connected to TV) average 4 hours 1 Laptop average 1 hour 2 Ceiling fans average 4 hours random stuff like phone chargers, kitchen blender etc. small appliances. not regular. maybe 30 minutes a week i use a 3.2Kva Petrol Generator btw, which carries the above load successfully...... albeit at increased fuel consumption |
| Re: Solar Energy, A Complement To FTA by makavele: 1:41pm On Feb 07, 2018 |
post above: budget 2M lol |
| Re: Solar Energy, A Complement To FTA by makavele: 1:42pm On Feb 07, 2018 |
viperVIP: cc zeestone99 he can go anywhere if the price is right 3 Likes |
| Re: Solar Energy, A Complement To FTA by makavele: 1:48pm On Feb 07, 2018 |
Eye candy . . 100% DIY coming soon |
| Re: Solar Energy, A Complement To FTA by makavele: 2:09pm On Feb 07, 2018 |
Started out like this ...  Installed by my good friend . . everything else, i did on my own 600W poly panels; 1 x 100Ah battery; 30A pwm cc; 1kVA (more of 800VA) modified sinewave inverter the inverter hums for Africa .. people thought I had a transformer in my house lol 1 Like
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| Re: Solar Energy, A Complement To FTA by makavele: 2:34pm On Feb 07, 2018 |
Then came the timer switch for deep freezer 1 Like
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| Re: Solar Energy, A Complement To FTA by makavele: 2:40pm On Feb 07, 2018 |
Then came the battery bank; 2 banks in 1; deceitfully connected via black-hat methods. Along came the Pure Sine wave 2000Watts 24V inverter; as quiet as graveyard.
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| Re: Solar Energy, A Complement To FTA by makavele: 2:42pm On Feb 07, 2018 |
Oops; i forgot the MPPT Epever 40A addition to replace the pwm cc you can spot the small black dc fan; to cool it down . . #nothing_left_to_chance 1 Like
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| Re: Solar Energy, A Complement To FTA by makavele: 2:44pm On Feb 07, 2018 |
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| Re: Solar Energy, A Complement To FTA by makavele: 2:48pm On Feb 07, 2018 |
The the battery box . . . i constructed myself 100% Contains 4 batteries and has another floor that can take another 4 can be stacked on each other or put sideways . Battery box is ventilated at the top and rear hydrogen gas escape during charging Can be modified to add a padlock; lol
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