Wired up my 12/24v dual charge controller and meter to my 12v/60W PV system.
Left it all day and the meter finally saw some power. (Though a 60W system should source 5A of power).
Spurred on by this I decided to drop a cable from the attic to one of my 24v/235W PV panels and then wired up two car batteries as the 24v load to the charge controller.
using 15A connector blocks
It's hot and nasty (itchy rock wool everywhere and loose boards) in the attic and the cables are close to the eave run - so little head room
But when I tested the open circuit voltage it was 0V !
My heart sunk. As I'm not sure if I tested all the panels when I received them.
So I tried another panel in the attic. It read 36V open circuit and so I connected it up. But again it read 0v down in the house. Below is the label at the back of each panel:
.
I'm hoping that my cabling is at fault. I'll go up on the roof with a voltmeter this Sunday and check all the panels before my extension cables.
I also found out that while the 300W pure sine wave inverter powers the lights in the extension it cannot get past the fuse box to the main house. I don't know why. Investigation is required.
Left it all day and the meter finally saw some power. (Though a 60W system should source 5A of power).
Spurred on by this I decided to drop a cable from the attic to one of my 24v/235W PV panels and then wired up two car batteries as the 24v load to the charge controller.
It's hot and nasty (itchy rock wool everywhere and loose boards) in the attic and the cables are close to the eave run - so little head room
But when I tested the open circuit voltage it was 0V !
So I tried another panel in the attic. It read 36V open circuit and so I connected it up. But again it read 0v down in the house. Below is the label at the back of each panel:
I'm hoping that my cabling is at fault. I'll go up on the roof with a voltmeter this Sunday and check all the panels before my extension cables.
I also found out that while the 300W pure sine wave inverter powers the lights in the extension it cannot get past the fuse box to the main house. I don't know why. Investigation is required.
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