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diy solar

few questions about solar power....

Hedges said:
Don't bother with the remaining smaller panels, too small to matter.



You have a PWM SCC. An MPPT SCC might harvest a little bit more power, but costs significantly more.
Leave this setup for something small. It may harvest 720 Wh/day in summer, 240 Wh/day in winter.

Decide what you want to power, how many Wh/day it needs.
Design a new system with bigger battery, more panels, suitable SCC and inverter if required, or AIO combining those functions.
It may be 10x or 100x bigger than this system.
Click to expand...
Summary, take the wires from your 3 biggest panels and connect the positive wires together in a bundle and the negative wires in a bundle.

Put those into the PWM input. Connect to your battery.

Still need to figure out how to either set your battery type or charge voltages.


Take all of your smaller panels and sell them so you can start saving up for a larger system.
 
robbob2112 said:
Summary, take the wires from your 3 biggest panels and connect the positive wires together in a bundle and the negative wires in a bundle.

Put those into the PWM input. Connect to your battery.

Still need to figure out how to either set your battery type or charge voltages.


Take all of your smaller panels and sell them so you can start saving up for a larger system.
Click to expand...
can i use the scc i have now ? just enough power to keep my pc,monitor and modem... off the coal powered power grid during the daytime ?
or is itr really adviised to get an mppt ? which im sorry to say "looks" and "functions" very much like an scc ...
becaquse i think 1 T in mppt means Tracking and any mppt i order off an available resource or app will not physically shift any of my 3 large solar panels...
 
Last edited:
corporal_Canada said:
can i use the scc i have now ? just enough power to keep my pc,monitor and modem... off the coal powered power grid during the daytime ?
or is itr really adviised to get an mppt ? which im sorry to say "looks" and "functions" very much like an scc ...
becaquse i think 1 T in mppt means Tracking and any mppt i order off an available resource or app will not physically shift any of my 3 large solar panels...
Click to expand...
Your PWM will handle your 3 largest panles at once.

The smaller panels I am saying to sell are so small any output they will cause you issues if you try to use them. If you choose to hook thrm up against advice you are on your own with them.


this is how they should be.

wires from three biggest panels all hooked to the PWM.

on the output from the positive post of the battery a fuse

on the other end of the fuse has the inverter and the positve out from the PWM.

negative of the battery has the inverter and the negative from the PWM


once you have it hooked up take a picture of the front of the PWM and post it. not a video, just a clear picture. see that all 3 large panels are in full sun.

once you have that posted we are done until you save up 25000p to 30000p and find a local solar shop so you dont get ripped off again

1713631263340.png
 
robbob2112 said:
Your PWM will handle your 3 largest panles at once.

The smaller panels I am saying to sell are so small any output they will cause you issues if you try to use them. If you choose to hook thrm up against advice you are on your own with them.


this is how they should be.

wires from three biggest panels all hooked to the PWM.

on the output from the positive post of the battery a fuse

on the other end of the fuse has the inverter and the positve out from the PWM.

negative of the battery has the inverter and the negative from the PWM


once you have it hooked up take a picture of the front of the PWM and post it. not a video, just a clear picture. see that all 3 large panels are in full sun.

once you have that posted we are done until you save up 25000p to 30000p and find a local solar shop so you dont get ripped off again

View attachment 210473
Click to expand...
perfect, wll gve that a go today at noon.. and m afraid there is no solar store or any sort of camping store on thisparticular island....(7500 islands remember?)... it is strongly recommended to order everything online and more economic too with a standardized shipping cost of 125 pesos for all items from source island to my island..

and i fuly intend on purchasing an AIO from .. i dunno.. alibaba ? im just nervous about the quality of the lithium china uses after their most recent invasion of..... nevermind.. yes my pc monitor modem ran for 2-3 hours on the 12v 50h battery but i suspect that was from whatever charge i had IN the battery and none from the solar panel.
AND all those "petite" solar panels are for other accessories like solar lights.. solar fan... usb charger.. so on and so forth....
 
pc/monitor ran today for roughly 3 hours while i napped.. butr battery dropped down to 1 bar according to the scc.... might nor mean much to any of you but that is success to me.. also to point out.. it was a cloudy morning.....
 
robbob2112 said:
Summary, take the wires from your 3 biggest panels and connect the positive wires together in a bundle and the negative wires in a bundle.

Put those into the PWM input. Connect to your battery.

Still need to figure out how to either set your battery type or charge voltages.


Take all of your smaller panels and sell them so you can start saving up for a larger system.
Click to expand...
fully intend to, spank you very much...in a perfect world i would leave my pc running 24/7 like i did back in montreal and never concern myself with the electric bill.. (i used to pay 30$cad a month for unlimited electric usage...

if i can do this maybe i will even set something up independant for my petite fridge but these days its as vacant as target store....
 
robbob2112 said:
Your PWM will handle your 3 largest panles at once.

The smaller panels I am saying to sell are so small any output they will cause you issues if you try to use them. If you choose to hook thrm up against advice you are on your own with them.


this is how they should be.

wires from three biggest panels all hooked to the PWM.

on the output from the positive post of the battery a fuse

on the other end of the fuse has the inverter and the positve out from the PWM.

negative of the battery has the inverter and the negative from the PWM


once you have it hooked up take a picture of the front of the PWM and post it. not a video, just a clear picture. see that all 3 large panels are in full sun.

once you have that posted we are done until you save up 25000p to 30000p and find a local solar shop so you dont get ripped off again

View attachment 210473
Click to expand...
small question if you dont mind.. i need fuse between positive of battery and positive of inverter ? how many amps ? and how would a fuse for a solar kit be called ? i dont want to accidntally buy fuse for an AC unit...

thank you....
 
Sounds like everything is working like it should.

Watch out for hot connections. After things have been running for hours touch your connections. If any are super hot it is either loose or needs to be recrimped.

So your next steps are to save up for a LFP battery, MPPT, and larger panels.

And you need to read up and study the resources pages on basic systems.

See this post for equipment you are saving for
diysolarforum.com

few questions about solar power....

If you connect 4x 3.2V cells in "parallel", you will have a 3.2V battery with 4x the amp-hours. Got a photo of that BMS? 4s BMS needs to have 5 sense leads and a pair of heavy current terminals to go through current sensor and disconnect FETs. You can look through the forum to see the...
diysolarforum.com diysolarforum.com


Fuse - order the 80 amp version

Samurry 40/60/80/100A Car Audio Fuse Power Fuse Holder 30-150a Stereo Audio Single Way Agu Fuse Holder | Lazada PH

MINIFRUT. heavy duty fuse holder for car. 2 way power distribution block. motorcycle fuse box with fuse. farad capacitor for car audio. parametric equalizer 12v sale. Brand new and high quality. Allows to use one power wire to have protective circuits. Helps to protect the device from over...
www.lazada.com.ph www.lazada.com.ph



Good luck
 
Last edited:
i
robbob2112 said:
Sounds like everything is working like it should.

Watch out for hot connections. After things have been running for hours touch your connections. If any are super hot it is either loose or needs to be recrimped.

So your next steps are to save up for a LFP battery, MPPT, and larger panels.

And you need to read up and study the resources pages on basic systems.

Good luck
Click to expand...
really do appreciate all your help to this point... thank you for helping me save enough money to buy my favourite local chocolate milk
 
hi, dont know if it is worth mentioning but i tried to put my pc and monitor on the inverter this afternoon and the moniotor remained blank.. i thought the monitor didnt like the inverter so i put that into land power.. no change... same symptoms as the chernobyl looking inverter.... i think not enough power is going to the motherboard to power the graphics display (a 4 pin plug on the motherboard that supplies power to all the outlets in the rear of the tower...)

could the inverter just be crap ???
 
ScrotusGobbleBottom said:
Gpus don't get the majority of there power from the motherboard. They get it directly from the power supply of the computer in most cases.

The cpu would turn the display on, but the power would be from a secondary cable
Click to expand...

and yes the inverter can be crap. first test, unplug everything from the output of the inverter and see if it is hot to touch with no load.
 
ScrotusGobbleBottom said:
Gpus don't get the majority of there power from the motherboard. They get it directly from the power supply of the computer in most cases.

The cpu would turn the display on, but the power would be from a secondary cable
Click to expand...
no gpu... im super cheap, i went with APU only.... i will be using my crappy laptop tomorow.. only.. OR pluf tower directly into inverter and see what explodes :)...
 
robbob2112 said:
and yes the inverter can be crap. first test, unplug everything from the output of the inverter and see if it is hot to touch with no load.
Click to expand...
oh yeah .. it was between warm and hot.. but it sais 1000 watts.. and knowing that China tends to exagerate everything they sell.. im skeptical...
 
1000w is probably peak for 5 pico seconds. I would guess the operating wattage is 200w.

You never did post a picture of any writing on it. A clear still picture. NO VIDEO! I have a friend who's wife is from china and she works as a translator. If I sent him the picture I bet he would get it translatd to english for me.
 
JUST the pc tower ran on the battery for 2 hours and screen went dark... i think the battery just needs to get more juice... currently 13.5 volts.. nothing warm...
 
robbob2112 said:
1000w is probably peak for 5 pico seconds. I would guess the operating wattage is 200w.

You never did post a picture of any writing on it. A clear still picture. NO VIDEO! I have a friend who's wife is from china and she works as a translator. If I sent him the picture I bet he would get it translatd to english for me.
Click to expand...
My apologies, I hope this is clear enough, good luck...

also.. PS.. nothing written underneath...
 

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