Autoconstruction small PV, which use LEDs?

[lorent]

Hello everyone.
I bought 120 6x6 4wp type A cells, cells that I will assemble and "resin" on windows (roof of a pergola).

Everything will be connected to a small tie grid inverter: http://www.ebay.co.uk/itm/New-design-60 ... 27c0116a0f

Ou

http://www.ebay.co.uk/itm/New-Design-60 ... 336d94cd54

Or another one that you will advise me ........?

My troubles ;
- How to connect these cells? Make 1, 2 or 4 panels? If several panels, connect them in // or series?

-Diodes; which models / powers? And where should I weld them? A schema would be really great for me because, I'm really not good at it

I would like to make this small install for fun and fun, but also, well exposed, should produce 300 / 400kw, always good to take


Thank you in advance for your help.

[dirk pitt]

B but also, well exposed, should produce 300 / 400kw, always good to take
e.

Oops!
watts, not kw

[elephant]

Warning warning:

this type of inverter cannot be connected with mains injection! Only inverters approved by European certification bodies can be used for grid injection (guarantee of inverter shutdown in the event of a utility outage - civil and criminal liability)

Conventionally, panels of 48 cells are made in series, one diode per group of 8 cells. This diode must support ten amps.

Your total voltage in summer must not be less than the minimum voltage processed by the inverter and the total voltage in winter must not be greater than the voltage supported by the inverter.

in the North of France, an installed KWcrete, produces 800 KWh / year

your cells should therefore produce:

120 X 4 Wp = 0,48 KWp

0,48 X 800 = 384 KWh / year.

Please note, the connection to the network is reserved for approved equipment, duly received by an approved control body.

You will therefore have to content yourself with charging / discharging batteries.

[lorent]

Thanks for that Elephant info. I notice that some small English inverters are "G83" approved, but not authorized in Belgium I suppose ... Very sad because these inverters necessarily have the necessary protection for the connection. Well, I have 2 170ah batteries and a 12v 250w sine wave inverter at home, I'll go on that basis.
So I have to buy a regulator but which one? A "normal" like this: http://www.ebay.de/itm/Solar-Laderegler ... 1c235f8f89

Or an Mppt? : http://www.ebay.de/itm/MPPT-Solarladere ... 1c2371a8f5

"Your total voltage in summer must not be lower than the minimum voltage handled by the inverter and the total voltage in winter must not be higher than the voltage supported by the inverter." Uh .... isn't it the other way around?

"Conventionally, we make panels of 48 cells in series, one diode per group of 8 cells. This diode must withstand about ten amps."

Ok, so 2 panels of 48 cells, I made 2 drawings:





I'm good ??? I need 2 additional diodes to connect the 2 panels ???

Which diodes to buy? And how to calculate their amperage? That's good ? http://www.befr.ebay.be/itm/MBR1060-DIO ... 5646afd226

[elephant]

Lorent said:

Uh .... isn't it the other way around?

The voltage decreases in inverse ratio to the T ° and increases when the temperature drops in the order of 0,155 V / ° K (for 48 cells in series), compared to the standard value which is measured at 25 ° Provide a range of -20 to + 70 ° C

Possibly explore my site http://www.panneaux-photovoltaiques.be.ma/

it is completely exceeded question granting of the premiums (! it is a Walloon site), but the technique remains the same

[lorent]

"The voltage drops in inverse proportion to the T ° and increases when the temperature drops by around 0,155 V / ° K (for 48 cells in series), compared to the standard value which is measured at 25 ° Provide a range from -20 to + 70 ° C "
Ok I understood, Thank you Elephant.

I'm going to see your site as well as this one: http://photovoltaique.guidenr.fr/cours- ... taique.php

A lot of explanations that do good to my ignorance

That said, I would like you to validate (or invalidate) my diagrams, before starting to weld, I want to be sure not to do any bullshit.

Big thanks to you

[lorent]

Please, can someone validate my diagrams before I weld
Goods.