Hello fellow solar enthusiasts,
I have recently created my own RV PV system details as follows.
3 renesola jc300m panels mounted to the roof all in series. I flat mounted two of them and the other one I just wired so that I can move it around to face the Sun. I want to be able to make two of the three roof panels be able to crank up to tilt. If you have any suggestions with that I would love to hear them.
Midnite solar classic 150.
4 Trojan t105s in series.
Samlex 600w true sine wave inverter.
I just put the third panel in series facing directly towards the Sun in hopes of getting more power into the controller. I am a bit frustrated because it reads I'm getting a hundred and twenty six volts but still only about 60 watts. Would love to get some help on this build.
One thing that comes to mind is that iif the batteries are not heavily depleted you will only see the amount of power that the battery needs to become fully charged... also time of day kicks in too, testing should be done near SOLAR NOON...
As Westbranch mentioned - you need to know the state of charge the controller is in - such as Bulk, Absorb, Float. If you also installed the Whizbang you will need to set it up properly to give you a good indication of your state of charge ( SOC) . New batteries can take some cycling to get them working to their fullest capacity .
And as Westbranch said -- if the batteries are in Absorb the controller holds the voltage steady and cuts the current back.
If you read the forums you will see lots of discussion of different ways that people use the extra power that is available - one way is by automating loads using the AUX contacts - there are many topics in the forums and a recent one the Matrix documented very well.
What settings are you using for your Absorb, absorb time, float, ending amps ( if you are using that ) , temperature compensation , etc?
Not sure how far you are planning to discharge your batteries but in general the deeper you discharge your batteries the less lifetime cycles they will have.
The solar systems are not plug and play - they take lots of study and observation to really understand and also battery and or hardware maintenance.
Someone recently posted this link to panels and understanding how they perform in series with shading - there is another video they made that talks about tilt angle https://youtu.be/ofo1HQyGG8s
Larry
Nadi
Do you have a breaker PV style from the panels ????
You DO need one if your opening up the series wiring to move your panel around.
See I would flip the breaker open & then disconnect the wires so that the MC4 connections would not see amperage or and welding .
Above replys agreed
VT