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Pumps in parallel

Dear colleagues: We are working on the design of a pumping system to serve several villages in Senegal. It will be pumped from two boreholes that are about 100 meters apart. The two pumps are connected in parallel and the water is sent to the tank using a single...
Answer pending

Supporting 6 HP Laptops for 24hr Daily

Dear Colleagues, can someone help me? I want to setup a Solar System that can successfully charge or support at least 6 HP Elitebook Laptops at a remote office where national grid is not existing. I need to know;   1) Number of Solar Panels to install 2) Storage...
Answer pending

Solar Production of a 7.65kW System

Hi; I have installed 18 panels of 425kW each which totaled  7.65kW with one central inverter. How much of this capacity should I see the system producing in the peak hours (11am to 1pm)? How much % of this capacity should I see in peak hours? (85%-90%?) What should...
Answer pending

Peter

I have a Luxpower SNA5000 5KW 48V inverter system with 6x 350w solar panels and 1x Svolt 51.2 battery. I read that the inverter has 2x build in mppt charge controllers. Will it then be possible to connect an additional 6x 550w panels to the second pv input of...
Answer pending

permanent solar panels and portable solar battery

Hi, I live in a rental home in queensland which has solar panels 3KW system (Ever solar TL3200AS). I have purchased an Ecoflow delta (EcoFlow Delta 1800W/1260Wh). my main hope is that I can charge my regular devices using the ecoflow so that my small phone/laptop devices are largely...
Answer pending

Solar panel

I want to ask about the efficiency of renevolt solar panels made by solar x in UAE . Is it comparable with longi himo 6 in efficiency
Answer pending

Help

Greetings, I have seen this project of sollar pumps, etc and drilling, I am a candidate willing to help through  they are some  ngo s  non profit,  that I will try to seek help, but I want to be taught  first, online about helping people with the solar water...
Answer pending

Uninterruptable power supply

I purchased a MPP Solar 2724LV-MR 2.7 Kw 24v all in one and a Power Queen 25.6v 100Ah LiFePO4 battery with the intention of coupling these together for an uninterruptable power supply to use with a few of my home appliances such as TV and security cameras. It is...
Answer pending

Pumping two wells in parallel

We are designing a solar pumping system in Senegal. It will be pumped from two wells separated by about 100 meters (they are very close to the Senegal River). The output of the pumps will be connected in parallel and it will be transported over 20 km to the...
Answer pending

Solar Panel / Auxiliary Battery to Fan (“pigtailed”)

This project is  microscale: I have a 12v  solar panel powering a 6″ 12v DC fan, … that gathers heat from the peak of my small greenhouse, transfers it via an insulated duct, to the “cabinet” that houses my adjacent anaerobic digester (to assist in maintaining an ambient heat...
Answer pending

Generation

Had a 15000 watt solar system installed. So far the most I have seen generated is 10900. Any idea why
Answer pending

Paul

Hi, I have 4 120 Watt solar panels Model MSX 120 made by Bp Solar. Just wondering what options are available for accessories such as charge controller, batteries, converter and connecting wires between the devices? Thank you Paul
Answer pending

Mr

I need professional advise in regards to solR power installation. This is just for local home resident mainly for lighting system. I have a solar panel with following details: Rated max power (Pmax)250w Output tolerance 0/+5% Current Pmax (1mp) 8.15a Voltage Pmax (Vmp) 30.7v Short circuit current (1ac) 8.63a...
Answer pending

Mr expertise

I need professional advise in regards to solR power installation. This is just for local home resident mainly for lighting system. I have a solar panel with following details: Rated max power (Pmax)250w Output tolerance 0/+5% Current Pmax (1mp) 8.15a Voltage Pmax (Vmp) 30.7v Short circuit current (1ac) 8.63a...
Answer pending

8000kw Megarevo inverter

Question: I recently had installed a 8000kw Megarevo inverter which is fine for the most part. However its been brought to my attention that its unable to fully operate my washing machine (in particular the pump) as the hertz setting isn’t compatible. The inverter is set at 60hz output...
Answer pending

From grid tied to hybrid solar upgrade

We have a 10.3kwh system. 26 panels on 2 lines. We have a grid tied solaredge inverter (se10000h-us) . We have a renogy lycan 5000 battery. If the power lines go down we want to power a subpanel and charge the battery. If we power the panel and plug...
Answer pending

Few days i notice grey and black outermarks on few edges of Solar Cells

The power of my panel is 275Watts having a Vmp of 30V and Voc of 38 so when I Check the Voc with a multimeter i got 34Volts in the morning…. But while cleaning the solar module I notice small grey and black outermarks on few edges of Solar...
Answer pending

Battery question

Hello , i have aquestion regarding battereis i am looking at either purchasing 2 (12V400AH) batteries or 3 (12V200AH) – is their a benifit to getting the 3 over the 2 ? or would the 2 be the better option ?
Answer pending

Solar hybrid 132kW pump inverter

we have hybrid pump inverter 132kW we want to connect it to 5 pumps and one blower with different capacity,which is lower that 70kW overall. can this hybrid inverter control the motors and blower separately? can this inverter protect all the motors separately? knowing that we have control board...
Answer pending

ADDING PANELS TO AN EXISTING SYSTEM

I would like to add solar panels to an existing system that I had installed 1 year ago. I have 10 panels and can go to 16 with the current setup. If I connect panels to the installed panels, do I need to change the settings on the Deye...
Answer pending

Payment for Water

We – GERMAN NGO Water for Kenya – supported the Community to build the Ivooni Thwake Sand Dam with solar pumping … the Cooperative has to guarantee, that -water will be given only, if it  is paid for, -there will be a reliable control, -there is enough money from...
Answer pending

Growtech 5.5kva inverter issues not showing the battery

I have a growtech inverter (not a growatt) inverter. Its a 5.5kva inverter brand new. After installation everything looked beautiful inverter charged batteries and everything was good. Then the power tripped and after returning the main breakers everything looked ok, except the inverter no longer seeing the batteries at...
Answer pending

Growtech 5.5kva inverter issues not showing the battery

I have a growtech inverter (not a growatt) inverter. Its a 5.5kva inverter brand new. After installation everything looked beautiful inverter charged batteries and everything was good. Then the power tripped and after returning the main breakers everything looked ok, except the inverter no longer seeing the batteries at...
Answer pending

One of my solar panel JA 455W stop working

Few days back my solar plant production decreases drastically, when inspected one of my solar panel (JA solar 455W) positive terminal of mc4 connector melted and broken and it also  caught fire which causes black spot on the back side of solar panel. Before lodging complaint with the installer...
Answer pending

Mr Jones

Is it a common practice to replace the tiles underneath solar panels with a plastic sheet during installation?
Answer pending

Huawei battery communications

I have Huawei ems-48100u2 batteries and growatt inverters. We have tried to contact them but communication failed. Growatt have been no help and Huawei have not replied. Is there a monitor that I could use to know more accurately the state of the batteries?
Answer pending

SolarEdge Inverter Model Numbers

I need to know what the difference is between these two SolarEdge Inverter model numbers is: SE14.4KUS-R2IBNU4 SE14.4KUS-R2IBNZ4
Answer pending

Wind solar

Can I charge a battery with two different sources simultaneously?
Answer pending

Solar panel

The max kph I used for one month was 1850.  Would a set up including: 8-S6 L16-HC (S-550) 445Ah 6V Deep Cycle Batteries, 4-Midnite Solar Classic 200 MPPT Charge Controllers and 24-Solarland SLP190-24C1D2 Polycrystalline 190 Watt 24 Volt Solar Panels produce that if sufficient sunlight.
Answer pending

Solar requirements

HI…I have 4 12v 5 watts Outdoor CCTV Camera. Please help me power this will solar panel. Solar? Battery? Controller?   Regards, Ruel
Answer pending

Options to choose from

Good day all       I am not sure which solar option is the best please can you assist Here are all the options, could you tell me which one is best or which parts are the best.   Rebel max inverter with shoto battery SMK inverter with...
Answer pending

Joc

4×450 w 48 v solar panels what mppt on 24 v battery  bank
Answer pending

finding the correct coupler

I can’t connect my new portable solar panel to my Bluetti EB3A . The panel I bought is a Baldr 200W. The accompanying cables don’t match up. The Bluetti input is an 8mm barrel and the Baldr cable ends in a red and black square plastic.
Answer pending

Best Way to Expand My Home Solar Array

I want to expand my current solar array to increase power output for an electric car and to cover all of my monthly electric bills/usage. Currently I have a 10-year old SunPower system in a string inverter configuration with 12 panels: Inverter: SunPower SPR-3600p-TL-1 3.6 kW Panels: SunPower E20/327...
Answer pending

Charging two different batteries simultaneously

Hi. My solar system comprises 24 x 330w panels. Two 100A Microcare MPPT,’s and a 8kw Microcare inverter. I further have a 7.4 SolarMd battery. Two days ago I had a second 12kWh battery installed which now only charges up to 66%. It seems that as soon as the...
Answer pending

PV ARRAY VOC AND HYBRID INVERTER MAXIMUM VOC INPUT

Dear Soar Hub. My array produces between 380voc to 477 voc. Good days/bad days. My growatt spf 500es is capable of a maximum input voc of 450v My inverter will shut down when it goes over 455v. Can I put between the pv array which is in series and...
Answer pending

Solar Array Output

I had 30, 400 Watt solar panels installed about 2 weeks ago. Just got access to the App. The live status screen says Solar is producing 4.2 kW. Full Sunlight middle of the day. Does this sound like the correct amount of output from the array?
Answer pending

hybrid 2 string inverter vs panel size question.

I am installing a hybrid solar system. My usage is 8.2 kwh per day, a small house, everything is 220v in the house. I will have 2760 watts of solar panels on one string facing west. 5-6 hrs of sun per day. My 2-string hybrid inverter is 3.6kw. It’s...
Answer pending

Looking for master thesis topic

Hi I’m doing a master’s in renewable energy specializing in solar energy Now I’m supposed to do a proposal for my thesis I’m thinking of some subject that is related to bifacial PV can you please give great topics? Should I do comparative analysis or please help me in...
Answer pending

18V panel and electrolysis of water

Would it be bad to use a solar panel to do electrolysis of water in a closed circuit? Would it short the panel to have 18V of electricity from my 18V solar panel flowing through water?
Answer pending

I have 24 x 2v 300Ah cells to make a 48v bank

I have bought 9kw of solar panels. I am waiting on a voltacon 11kw 48v controller inverter to arrive. Should i buy a new battery rig or can i utilise the batteries i have already? Instead of wiring in series is it possible to make 4x 12 volt bank...
Answer pending

I have 24 x 2v 300Ah cells to make a 48v bank

I have bought 9kw of solar panels. I am waiting on a voltacon 11kw 48v controller inverter to arrive. Should i buy a new battery rig or can i utilise the batteries i have already? Instead of wiring in series is it possible to make 4x 12 volt bank...
Answer pending

Combined use of solar energy for pumping and other use for electricity

I was reading some text about “Combined use of solar energy for pumping and other use for electricity”, giving a higher level of service to the users, both getting water pumped, but also electricity for other purposes using the same system. Any references? – Maybe a source by UNICEF?...
Answer pending

My solar batteries keep dying and its new

Hey i have 2 29ah deep cycle batteries and it wont hold a charge overnight and it keeps jumping to different voltages and it charges quickly up what’s the problem plz help
Answer pending

My solar batteries keep dying and its new

Hey i have 2 29ah deep cycle batteries and it wont hold a charge overnight and it keeps jumping to different voltages and it charges quickly up what’s the problem plz help
Answer pending

Greenhouse gas emission

Do you have any data on saving of greenhouse gases using solar powered pump (e.g., /1 million cubic meters of water delivery)?
Answer pending

Is solar controller necessary?

I have a Bluetooth PS50 portable solar powered generator. I have only charged it up before using AC wall outlet. I have purchased a BALDR 120W solar panel for it. My question is do I need any kind of controller between the solar panel and the generator?
Answer pending

Solar Panel Grouping

I am prepping to click approve on a plan for a solar system provided by Tesla & need help making sure it is the right solution for my needs… Needs: Solar solution can run everything in the house without a priority breaker panel in the event of an power...
Answer pending

David Spark

Delivery pipe size over 200m- head of 40m -10000 litres in   15hrs.
Answer pending

Solar energy

Is solar panels worth it
Answer pending

A problem in designing of solar system.

Dear colleagues, would be your kind to support us in designing the solar system (pump, solar panels and etc.) is there any easy way (norms) to do it without access to the compass of the companies. we really in trouble in this matter.
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Regular updates from the Solar Hub

Is there any ways to receive updates from you, e.g. a newsletter or follow you on social media to receive updates?
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Solar water projects in Mozambique and Angola

hello, this is Pierre Fourcassie, UNICEF. I am in Mozambique at the moment and i was wondering if you could share any documents on PV water pumping project in this country -or Angola. Documents could be evaluations, documented good/bad practices, analysis, site visits, technical project documentations, suppliers, etc… –...
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Costs included in generatos vs solar pumping comparisions

In your cost comparisons of solar vs generator pumping schemes, is drilling of borehole included in the calculation?
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Breakeven periods generator vs solar pumping

In your life cycle cost analysis , what the justification on the difference on the break even period for different countries? why is just 1 year in Uganda and 5.1 years in Iraq?
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Maintenance cost of solar pumping schemes

In your cost analysis, did you consider the maintenance cost of systems knowing that in remote areas people do not have the skills? How do you manage that because it could help to increase the lifespan of systems and empower local communities especially youth?
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Life time of components

What is the life time for solar pump and system invertor?
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Financing solar pumping schemes

How do we integrate financing of Solar powered water systems especially to Sub- Saharan African Countries?
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Prices of solar for cost analysis

In your Life Cycle Cost Analysis, usually the exact cost of equipment, maintenance and repair costs are lacking in developing country so how you exactly calculated LCC or you take the estimate.
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One Pump Controller for Multiple Pumps

Could a pump controller and/or inverter be sized large so it will be connected to power (or operate) multiple (submersible borewell) pumps?    
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Is it the capital cost of solar still too expensive

Especially when compared to equivalent diesel-based solutions? Thank you.
Answered by The Solar Hub

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