Technical Discussion: Solar Electric System - Photovoltaic

Share your questions and experience with others on off-grid and grid-tie solar electric systems. Our own NABCEP PV Certified installers also frequent this forum to lend a hand.

topics

Subject Started by Replies

Cost for an installer to setup a 2.6kw micro inverter system for example

Can someone tell me what an installer would typically charge to install a 2.6kw full system grid tied micro inverter system on a...
Mark Immer 1

framelees solar panel

a customer buy frameless solar panels, anyone know how to install and where the fittings are bought
Preciado Carlos 1

catamaran pv array

I am installing a pv array on a 21 ft Wharram catamaran. Its function is to charge batteries to power an electric outboard motor...
Stephen Broos 1

Blocking Diode?

I am getting a Xantrex C35 and I am wondering when I hook my 60W panel to it will I be required to use a blocking diode?
Max Schulte 1

String inverters or microinverters

I'm planning on setting up a roof-mount system, in the range of 7.5-9 kW.  I am building a new garage that will be str...
Peter Hinckley 1

Need Solar Charge Controller Recommendation- 12v system, 2x240 watt (Vmpp 30.4v)

I've got two REC 240PE(BLK)  240 watt solar panels, and I'm wanting to find the least expensive (but not junk) charge...
Eric Randall 1

Battery Problem

I have an off grid system here in Jamaica. Yesterday my system went south, the Charge Controller says that the Batteries are at ...
Charles Harte 1

Swimming Pool Pump

I have an existing Hayward Super II pool pump, 3/4 hp, 230 v and .55 KW (information from motor label). Can I run this pump with...
David Snow 1

Tri - Metric model TM 2020

 My battery monitor has been going sorta OK, but now it just flashes a series of "000000" real fast. There ha...
Tom Dobson 1

20 amps at 120v. or 2400w of power

I am a newbee and have been reading for about 3 wks. I want to build a solar system that I can run a small fridge 24/7 and tv 4h...
Brian Eicke 1

what single panel and inverter to power 2 fountain pumps at 110v?

I just want the pumps to pump water through the fountains during the day while the sun is shining. I was thinking a canadian sol...
1

Which configuration should I choose

Hi all, Here is my project: My customer currently use 400W halogen lamps at 240V A.C, we have persuaded them to change t...
Eric Lee 1

Question about battery capacity when wired in series vs. parallel

Hello, I have 4 150 amp hour batteries. When wired in parallel, this would give me 600 amp hours at 12 volts. ...
Robert Kovalik 2

Real world question

I have a question about Charge Controllers and how much they can handle. I am in a position where I have increased my panel outp...
Charles Harte 2

Next to zero gains at high noon

Hello- I bought the setup for our off grid cabin and it worked great from the day we installed (last November) until about a mon...
Jessica Sullivan 2

Solar Installation Software

Hello, Please help me in finding the best software for Solar Installation Calculation with great accuracy
Lee Bella 2

Simple questions for my RV solar setup:

I'm not sure if the panel I want is compatible with my batteries or mainly with the charge controller I already got. &...
bb Brandon Buckley 2

can someone please recommend an mppt controller with &/or without inverter

I need to combine all these into one single solar energy system: Can someone recommend an mppt controller with &/or with...
abSalute Power 2

Help me choose a solar charge controller please

My setup 300Ah battery bank (12V) Solar panels (18V) 300W Placement of panels not ideal but good enough. Panels are vertical...
Jing Wei 2

2 solar arrays and one controller

Hi I have identical polycrystalline solar panels mounted on opposite pitches of my roof. I am running them into my sola...
Fab Sianna 2

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