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

Exposed Wire Protection for Ground Mount Systems

The NEC requires protection for the exposed wiring on ground mount systems.  If the lowest wires are less than 6' off ...
Russell Aney 3

battery bank

im looking at a solar system for my house that comes with a  48V, 400 Ah AGM Battery bank  with a 8.2 kw array does th...
Wayne Kobe 3

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

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

Solar Installation Software

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

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

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

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

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

Canada - is it csa certified ?

I purchased 3 - 110 watt solar panels and a 300 watt grid intertie  inverter, thinking that I could plug them into my house, an...
Dave Lotte 2

About the Inverter

Hi all, 1) What is the difference between a grid-tie inverter and an off-grid inverter?  What components they both...
Eric Lee 2

Sizing Fuses

I'm wondering if I could get some guidance in regards to sizing fuses for a few solar systems, as I've never done it b...
Bradley Galbraith 2

golf cart panel and controller

TO WHOM        MY GOLF CART HAS A BANK OF 8(TOTAL) 6VOLT BATTERIES, WIRED IN SERIES TO EQUAL 48 VOLTS. I...
Robert Larsen 2

solar panel output

I’m a little puzzled on this. Kyocera solar panels KC 40T is rated at 43 watts. Now you take into consideration the ra...
Ray Grose 2

Equipment Groundiong Conductor Size?

I have a small stand alone 12v nominal system with a battery bank. What size wire do I need for the equipment grounding conducto...
James Johnson 2

48v battery bank charged by 12 v panel controller

hey Everyone, obvious Newbie here. I have 4 Kyocera 400 w panel system, still in the box. I also have 4 Deka 92AH 12v AG...
Peter Bige 2

Raising PV panels above trees

My location in the woods creates problems for getting sunlight to PV panels.  I'm looking for advice on how best to ge...
Jerry Wenzel 2

Sunny Boy vs Solar Edge

I'm installing an 8000 w array on my barn Pretty ideal case facing south with no shading. I'm debating Sunny Boy vs So...
Donald Edmonston 2

efficiency Pv in series with capacitor to charge a battery or power DC motor

What happens to amps, when charging a battery or powering a motor..   from a 4V circuit of solar cells and a capacitor ...
Terry 2

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