Which Controller for 1KW-Solarpanel-Array and 800Ah Batteries is the best?

[esu]

> Can you tell me what size wire is between the panels and controller?

The diameter of wire from solar panels to controller is about 2mm

> We would need to know the panel specs manufacturer and open
> circuit voltage and location for coldest recorded temperature.

I try to determine this information. But at the moment it is not easy, because the panels
are placed on the roof.

The solar panels are installed in Cambodia.
Here is the same temperature whole year - about 25 - 30 degree celsius.

The system at my home looks like this:

https://dl.dropboxusercontent.com/u/4263334/solarsystem.jpg

What is the exact difference between "Morningstar TriStar MPPT 45 Amp" and "Morningstar TriStar 45 TS-45"?
Because I see that both controllers do almost the same, but die MPPT controller cost much more.

[Sunking]

> The diameter of wire from solar panels to controller is about 2mm

Sorry but I cannot help you anymore. That 2 mm diameter cable should be more like 15 mm diameter. It is not even capable of safely passing the current imposed on it. Your system is completely miss configured. Whoever did this too you is a criminal and/or clueless. Only thing you have usable is the panels, batteries, and inverter. Everything else has to go. Even if you did reconfigure with the right materials still may not work as you have not specified how much energy you need each day. Sorry but I am out of this thread and do not want any responsibility for it.

Good luck

SK

[Naptown]

You want the MPPT version
That set up is a fire waiting to happen
And not a matter of if but when.
That is an inverter charger plugged into the wall. Is that for charging the batteries or feeding the house.

[esu]

> That set up is a fire waiting to happen

Buy why? What is wrong in this setup?

> That is an inverter charger plugged into the wall.
> Is that for charging the batteries or feeding the house.

It is for feeding the house.
Batteries are charging by the solarpanels.

[Naptown]

It is wired wrong with wires that are way too small. Should never back feed through a receptacle as that can cause a fire.
The only up side is you have a few components that you could perhaps sell

To fix
Rewire with correct size wires
Dump that inverter or at minimum wire it to a distribution panel properly with proper over current protection.
Bond and ground all components.
Too long a list and difficult to explain

[esu]

Ok, thank you for your message. But I can hardly imagine a wire of 15 mm diameter. Can someone show me an image of this wire?

[Sunking]

To fix
Rewire with correct size wires
Dump that inverter or at minimum wire it to a distribution panel properly with proper over current protection.
Bond and ground all components.
Too long a list and difficult to explain

Rich the poor guy is in Cambodia. They have no codes or knowledge of solar. As you say it is to in depth and difficult to explain. That is why I will not help any more.

[esu]

What is the exact difference between "Morningstar TriStar MPPT 45 Amp" and "Morningstar TriStar 45 TS-45"?
Because I see that both controllers do almost the same, but die MPPT controller cost much more.

[inetdog]

What is the exact difference between "Morningstar TriStar MPPT 45 Amp" and "Morningstar TriStar 45 TS-45"?
Because I see that both controllers do almost the same, but die MPPT controller cost much more.

The MPPT controller can take its input at a voltage well above the charging voltage for the battery and convert it to a lower DC voltage but at higher current.
The other (PWM) controller cannot deliver any more current to the batteries then the panels are producing at that moment, so it will unavoidably waste some panel power.

[SunEagle]

>

The system at my home looks like this:
https://dl.dropboxusercontent.com/u/...olarsystem.jpg

I keep looking at this picture and I think you have your batteries improperly wired. Those batteries are all aligned the same way with the positive terminal on the right and the negative on the left.

The 2 batteries on the left are wired in parallel and the 2 batteries on the right are wired in parallel. The left bank positive lead is then wired to the right bank negative lead. That is not a typical circuit for a 24volt system with 4 12volt batteries.

Also it does look like that Inverter/Charger is back-feeding a house receptacle which is not safe.

[Sunking]

I keep looking at this picture and I think you have your batteries improperly wired.

• No thinking about it. All you have to do is look at the Red & Black wire between inverter and Battery. Both go to Positive Battery Terminals.
• Now look at the two controller output cables. They should be terminated to the same place the RED and BLACK terminate which is wrong to begin with.
• Let's not even talk about the controller input wire size from the panels. It is so undersized and small is probale the only reason it has not caught fire already. It cannot deliver enough power to charge a flashlight.

ESU for the sake of God shut everything down and disconnect all wiring NOW before you burn your house down and get HELP. For Pete's Sake not even one dammed single fuse installed.

[thastinger]

Holy crap, I'm going to have to save this picture. Is that 14/2 house wire connecting the batteries?

[SunEagle]

• No thinking about it. All you have to do is look at the Red & Black wire between inverter and Battery. Both go to Positive Battery Terminals.
• Now look at the two controller output cables. They should be terminated to the same place the RED and BLACK terminate which is wrong to begin with.
• Let's not even talk about the controller input wire size from the panels. It is so undersized and small is probale the only reason it has not caught fire already. It cannot deliver enough power to charge a flashlight.

ESU for the sake of God shut everything down and disconnect all wiring NOW before you burn your house down and get HELP. For Pete's Sake not even one dammed single fuse installed.

I got fooled by the picture concerning the red and black inverter wires. The black is passing next to the positive terminal of the second battery but ends up on it's negative terminal.

The wiring is all too small and also noted the lack of fuses.

But the 24volt battery series/parallel wiring is just wrong. The left bank should be in series and the right bank also in series. Then those two banks should be paralleled.

[Sunking]

Holy crap, I'm going to have to save this picture. Is that 14/2 house wire connecting the batteries?

Yes technically it is called NM 14-2 wire aka ROMEX Trade Mark

[Sunking]

Who Said I Am Not Nice

I sure hope you are not connected to the utility, because if you are and wire it up correctly, it will blow up in your face when you plug it in.ESU whoever wired your system up should be shot and has no biz touching electricity. They are trying to KILL YOU and BURN YOUR HOUSE DOWN.

DO I MAKE MYSELF CRYSTAL CLEAR?