Technical

Have a specific technical question? Looking for some specific advice from others in the RE community? Ask it here!

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Subject Started by Replies

Questions about Siemen panels

« 1 2 3 4 5 »
Hi all, great site. I have two Siemens M75 48W panels wired in parallel.  Aimed directly at the center of our sol...
 The other Michael B 20

Generator Start Module wiring


Greetings - I have purchased a new Generac 10Kw(LP) Standby Generator to hook up to my offgrid Re system. I have a Xantrex inver...
 David Rudell 3

Firewood vending- convert to solar


The machine vends prebundled firewood.Plugs into 110v outlet. It uses an electric motor (6.7 amps) that turns a screw drive to p...
 John Laughlin 2

question about switch panel and fuses

« 1 2 »
Hi there, I am putting together a small 12V electrical system in my cabin. I am looking for advice on how to properly w...
 Bob Christensen 7

Connector Confusion Don't want to mix up polarity

« 1 2 »
I'm confused. I am wiring two panels in series. I have the panels connected together however I understand I need to wire th...
 Ann Byers 5

System requirements

« 1 2 »
I have an outdoor large item vending machine on it's  own trailer. It uses 110v ac,20 amp.I would like to convert ...
 John Laughlin 7

Mixing pwm and mppt to same bank ok?

« 1 2 »
I have a MPPT charging a 12v bank and want to make sure its ok to add a pwm charge controller to the same bank. This is...
 Keith Birchfield 6

Freetricity.com

« 1 2 ... 45 46 »
Since I am interested in alternative energy sources, I looked into freetricity.com. I called them and the salesman I spoke to sa...
 Sue Smith 228

Battery bank generator


Im want to build a small back-up 24 volt battery bank generator. I have a 125 amp, 24 volt electrodyne alternator, I want to tur...
 Russell Rogers 2

Help!!!! Wire crimping or soldering?

« 1 2 »
OK....I'm starting to wire the DC box BUT...the Outback breakers have nuts on them and it looks like I"ll either have ...
 Ann Byers 8

Best racking solution for wooden shingles?


Any advice or reccomendations on a PV racking solution that would work well for a pitched roof with wooden (cedar) shingles? ...
 James Hasselbeck 3

Solar DHW


Looking for input on solar flat plate vs evacuated tube collectors in New England...any info appreciated with regard to efficien...
 Bruce Friedman 2

Modified sine Wave VS Pure Sine Wave Inverters.

« 1 2 »
I'm putting together an alarm system for my remote off-grid cabin and have found that I need a Pure Sine wave inverter to r...
 Paul Smith 8

Failing PV panels


I found this issue on another site...wondering if anyone has some advice or insight about this issue: "In 2003 I h...
 Bruce Friedman 4

Solar panel with Diode.


If I have a 12v solar panel and it has a built in blocking diode if I would buy a matching panel and wire it in series would I g...
 Max Schulte 1

Battery charge life


I am new to RE but I have a problem that I would appreciate some insight on. I have a small 200-300 watt wind turbine hooked dir...
 David Day 2

Battery failure on DC powered exhaust fans

« 1 2 »
Hello, I currently have two 24 volt, 50 watt exhaust fans operating 24 hours on wind/solar thru two sets of 12 volt (in seri...
 Ron Hopp 5

Unirac


What is the primary difference between the Unirac Sunframe and SolarMount racking systems.  Why use one over the other. ...
 Bruce Friedman 1

Can I tie these modules together? ES180 and SW100C

« 1 2 »
Are these two panels compatible? Evergreen ES180 RL/SL 180W 18V Solar Panel http://www.altestore.com/store/Solar-Pa...
 Keith Birchfield 6

Pole Mounting - Use the Pole as Ground?

« 1 2 »
Can you use a steel ( 6 inch schedule 40 ), in 4 foot of concrete, as the system ground?
Keith Birchfield 5
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