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

strange phenomena is PV output

Hi, I have 16 sunpower 318 panels connected to sma smc5000a (inTL) inverter (2 strings of 8 panels each). Each panel has...
Yonatan Yonatan 1

Stacking DR inverter with TR inverter

Is it posible to Stack one TR 2424 inverter primary unit with one DR2424 in secondary unit?
Pascal Russell 0

specific PV module / charge controller question

I have in mind to use Sanyo 32v PV modules, in series strings of 3, running through a C40 controller, set to 48v to charge a bat...
Travis M 4

Sorry, double posted

Sorry, double posted
Neal Palmquist 0

Solar PV water heat

Joseph, for some reason, the site would not allow me to reply to your post, so I am posting my reply in this manner.  I hav...
Jon C 0

Solar Pond Diffuser Project

I have supplies that I am trying to hook up to make a diffuser system for a small pond. We currently have: 4 - 85 ...
Carrie G 1

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

solar panel mounting

  I want to mount 3 sharp 240w solar panels on my south wall of an off grid log cabin.I have 3 on garage roof facing south ...
James Anspaugh 7

Solar Installation Software

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

Solar charger controller question??

Hi Guys, I have 840watts off solar panels, and 25 12v 72a/h deep cycle batteries, and I'm wandering if my solars w...
Marcin Rzeszotko 6

Solar car

I am an engineering student. I am making a solar car for my major project. like this one   http://solarcar.sta...
Shalit Dubey 0

SMK or MC4

Hello, I'm finalizing the configuration of a new system (my first) and have a few questions regarding the connectors an...
Lion Benjamins 5

small off-grid: solar charge controller + inverter compatibility for LVD purpos?

Hi, Our non-profit helps train about, and install, renewable energy systems in remote villages in developing countries. ...
Michel Maupoux 5

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

Situational System

I have a desire to get an expandable solar system started. I have quite a few issues that I think might be expensive problems. M...
Joe B 9

Single axis solar tracker Design

Dear all, I am student. I am doing project on single axis solar tracking application.Ihave implimented my c code from Below ...
Ajit Nayak 0

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

Should I wire solar panels in series or parallel?

So if I have 2 identical KD135SX-UPU panels (17.7v Max Power, 22.1v Open Circuit) and I’m charging a 12v battery bank (4 @ 6v,...
John Kozell 5

Should I use a mppt500 or mppt500hv ?

I am building a small off grid system using two 230 watt panels. They are 34 volts open 8 amps each, BP 3230T. I can wire th...
Lj Gwen 3

Should I Even try to DIY a PV Solar install?

I've got a 1500 sqft cabin that sits way off the main road.  The power company wants almost $15,000 to run their cable...
Tom Mathis 6

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