Bop's latest activity

Need another panel or a different inverter. Can you get a rooftop picture and post it up?

100w panels (per watt) are expensive. See what you can find locally in bigger panels - 330 to 350w seem to be the sweet spot right now...

A 15A HRC fuse will be fine for the job and meet the requirements for the Sunnyboy (you can readily get 18A non HRC fuses- but thats not...

Ahha- that explains it... (we use the SE in Australia almost exclusively these days as most home owners either want a hybrid from the...

I guess I should have referenced the specs from SMA. It clearly says 18 amps: Edit: just realized there's a Sunny Boy 7.7 SE (Storage...

Strange- the specs on the Sunnyboy 7.7 are far different to that statement... (from HERE) A 19.5A array is well within the 30A Isc...

My understanding In Minnesota is anyone with an electrical engineering degree can sit for the master electrician exam without any hours...

Assuming that your inspector is qualified. (Some really aren't) Over the years I have had inspectors ask me questions, that left me...

Unfortunately that's one of those situations where they'd bully you while not having a legal leg to stand on. Taking them to court...

The MPPT charger rating is the OUTPUT of the charge controller, and the input wattage is set by the battery bank voltage... Eg my...

You can't put one panel in parallel with three. The strings in parallel must be the same voltage. Your best option is 2s2p.

I would remove your actual name, email and phone- if someone wants to discuss with you give those out in a private message. Just...

VOLTS . Multiply your voc x 4 for 4 panels in series and add 20% to be on the safe side as the voc goes up when the temprature goes...

Here it is recommended to fit a sheet of cement fiber board over any timber backing sheet, if that is done, then yes, perfectly...

A 1/4" sheet of cement board over 1/2" plywood has been my go-to mounting solution. Fireproof but still enough wood for screws to hold fast.

Any way you cut it (pardon the pun), modern quality string inverter systems are not hampered anywhere nearly as much by shading as micro...

I was thinking of that + half cut cells which only started being produced ~10 years ago.

Unless you are using old technology, it doesn't work like this any more. Modern PV modules are designed to automatically bypass shade...

REALLY old tech panels (bypass diodes have been a feature of practically all halfway decent panels since the late 1980's,early 1990's)

Most inverters and SCC apply some bias or another on the PV strings. Either they ground it, or make it ride on the AC it is feeding...