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

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

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

How many pcs of the 120W solar panel do I need?

Hi, I have a project that is: System current: 14A Operating voltage: 240V Operating hr: 6hr Panel opera...
Eric Lee 12

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

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

Off grid different than on grid for location

  I would like to know what people think on where to mount the panels. example- on a grid system you would always point the...
James Anspaugh 4

Mixing battery sizes in one battery bank?

I have a 12V battery bank, with two 100Ah AGM batteries, and two 200Ah AGM batteries.  Is this advisable, or should they al...
Matthew E 14

parallel shunt charge controllers

what type of combiner box or ? do I need in order to run (2) ASC shunt controllers to the same battery bank?  Help please&#...
James Johnson 0

Xantrex MPPT low output problems

I've got a Xantrex MPPT charge controller (60A) in my off-grid system, and recently in the mornings as the sun rises, the o...
Matthew E 28

"24V" PV & 12V battery charge controller?

Hi, We are getting a donation of a 215Wp panel for a small school system in Nicaragua.  That's great, but the Voc ...
Michel Maupoux 7

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

Grid Tie Inverter 120v into 240v grid?

I'm confused how 120 volt grid tie inverters work with the household 240 volt grid. I know how the grid works with (2) 120 ...
Gordon DeBower 0

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

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 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 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

parallel different types of panles is o.k.?

when hooking up multiple types of panels. IE: different Voc / Nominal. It's o.k. to mix them when they are all in Parallel?...
James Johnson 4

Replacements for Solarex MSX-60

I have MSX-60 panels that are 19.75" wide and 43.63" tall.  Does anyone know of a direct replacement for these?&n...
Steve Homan 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

Disclaimer and Disclosure

The Alternative Energy Store, Inc reserves the right, within its sole discretion, to refuse or delete any posting or portion thereof, or terminate or block the access to this forum.

The opinions and statements posted on this forum are the opinions and statements of the person posting same, and do not constitute the opinion or act of the Alternative Energy Store, Inc (AltE). The Alternative Energy Store, Inc does not endorse or subscribe to any particular posting. No posting shall be construed as the act or opinion of the Alternative Energy Store, Inc.

Click here for BBB Business Review

McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams
Desktop Website | Mobile Website

Share

Click on an icon to share! If you don't see the method you want, hover over the orange "+".

Feedback

What can we do to help you?

Please enter a summary
Sorry, the copyright must be in the template.
Please notify this forum's administrator that this site is using an ILLEGAL copy of SMF!
Copyright removed!!