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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...
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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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