My new panel with three PWM5 solar charge controllers (www.256.co.uk). Separate feeds via diodes to the grid tie inverter
By Julian
Youtuber, shed dweller, solar charge controller aficionado
Good morning all…
Youtuber, shed dweller, solar charge controller aficionado
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Hi friend
I Want to use 3 MPPT solar change controller for 12V DC output load but
( I want to use 12V DC Output load use in parallel from 3 MPPT solar change controller ) its possible???
Please guide me
Best regard
Hi. i have a 500AH lithium battery i want to charge from two sources while in use.. a 100 Watt 12v solar panel and my cars 12v cigarette port that is only on while the car is running. What's the best way to wire this and what do I need?
Dear Sir! I found the charging circuit of the day very good, let me ask for more information, can this circuit charge 100ah? If not using solar power, can I use dc power to charge it?
I harvest my own energy system. The right formula turned out to be the Papziati Energy online program. It is the best way to create your own power. Google it.
sir how to buy from you the pwm5 solar charge controller?
Don't you need some form of synchronization between the controllers when you couple them in parallel?
Since they run independently, each one will measure the battery voltage at a different time, and it is possible that one would be measuring the battery voltage while another is sourcing power to the battery. All controllers will be trying to regulate at the same time.
I like your videos Julian. Keep up the good work!
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Where do i find these controllers ?
There is a diode on the yellow lead internally oin each PMW5, so adding another on the lead just gives you 5-10W extra loss total depending on the size of the panels,
Thanks, that was very helpful.
Yeah, I have been thinking that way too. I also like to build stuff from salvaged & scavenged parts…nothing is really junk when you're into electronics! 🙂 I have 3 battery banks in my system, the original one is basically a bunch ov car batteries, 8 at the moment, a mixture ov new ones and some old ones. I consider this the 'A' bank, and mainly for daytime running. I also have flooded deep cycles & VLRAs for the 'B' & 'C' banks, the latter currently being considered the night batteries.
Yes exectly that. I try not to let them drop below 12 volts. In winter this isn't easy, so inevitably the batteries suffer. But I like the idea of building systems using salvaged or scavenged parts. Perhaps I'll do a video on how well the batteries in my bank are holding up. Thanks for the idea.
How do you find that using ordinary car batteries hold up in a solar power system? Do you make a point ov discharging them less deeply than a true deep cycle battery?
Yes that's exactly how it works. The batteries charge first, then as the voltage comes up, the grid tie starts to take a share. When the controller(s) ease up on charging the battery, the grid tie takes the excess. It's all pretty seamless. I've had it working for a couple of years with one panel and one controller. To make it work with 3 controllers the extra diodes are needed.
Can you take parallel feeds from the incoming solar to feed the grid tie inverter? I'm curious because I want to do something like that! I have a control panel so I can switch between grid and battery bank! But its manual! If I was to do something like this the charge controller would charge the battery bank up then all excess power generated would be run through the grid tie? Is that correct. that's how I see it! let me know how you get on? cheers Peter