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

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

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

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

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

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

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

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

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

framelees solar panel

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

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

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

Blue Sky Sun Charger 30 bulk mode charging voltage

Hi all, I recently installed a small solar system in my RV consisting of a 105W solar panel mounted on the roof, a Blue...
Brad Schempf 1

72 VOLT BATT ERY ARAY

I FOUND NEW BATTERY BACKUP 3000 WATT THAT IS OUTSTANDING WITH ALL THE BELLS AND I HAVE  40TY 108 AH BATTERY BANKS MADE FOR ...
Greg Moore 1

Two different sized batteries off one panel

Greetings, I have a situation where I have a 180w panel which was given to me because it was broken.  I've made it...
Nathan D 1

ac-coupling

This spring we'll begin the first steps of setting up our PV system. Move the meter from the house to the yard, re...
Scott Hucker 1

Mounting panels to the roof

I have purchased an IronRidge solar panel mounting system to mount 33 280 watt panels to a metal roof. The plan is to use Iron R...
Robert Sorensen 1

disimilar ah of batteries in serries

I have imported 24 2v 1000ah agm cells from china but when I unpacked them I found I had 12 1000 ah cells and 12 1200ah cells am...
Stephen Smith 1

Combining Systems

I've got a Xantrex 6048 selling power back to the grid at a point I'll refer to as  the  T.  The 6048 sends power i...
Jon W 1

reduced panel output

After a recent move I was reinstalling my small off grid system that provides power to a small workshop.  I found that one ...
Robert Williams 1

Equalize Charge Using Direct Panel to Battery Connection

I decided that I wanted to equalize my battery today.  After doing some research about what voltage to do it at I decided t...
Travis A 1

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