Technical

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

topics

Subject Started by Replies

Install solar panels


I have 3 panels 64 watt ea, 2 unisolar & 1 solarex. 12 volt system. how do I wire panels to J-box located about 20" from first p...
 Bill Palmer 0

Battery basics: cost analysis $/cycle


greetings all. anyone out there have chart / data comparing DOD/Cycle/Cost of the usual battery manufacturers? ...
 Jason Arnold 0

Upgrading an off-grid hydro system


I have a hydro system with a 23kW Marathon 240VAC generator (8" pipe, about 200 or 250 ft drop), but it uses too much water...
 David Doshay 0

Effect of desulfator on equipment


I am installing a 30w panel and desulphator/charge controller on my boat. If the power is on to my instruments, equipme...
 Randy Sermons 0

Charging a larger Lithium Ion battery with solar


Hello, I’m seeking a solution for charging a 12 volt lithium ion battery while traveling for several weeks at a time....
 Mark Stivak 0

Sine Wave Inverter Selection


I am about ready to upgrade to a sine wave inverter. I know the many advantages over modified sine wave but not all of the varia...
 Jim Sluyter 0

Reflective Sheet Steel


What would it take to coat sheet steel with a silvered surface?  I have a variety of solar reflector that I would make out ...
 Paul Klinkman 0

windpower generators


   I am looking for the best price on a new complete package windmill that will produce app.400,000 kw a year in an ar...
 Dave Graybeal 0

Outback VFX3648 inverter


I have an offgrid setup with 500Watts of solar (more to be added) and a 1000W wind generator. I am using stacked inverters (2) 3...
 Royden Brien 0

Global Sun Oven Smell


I love my solar oven.  I bought it in March and have been using it frequently throughout the summer.  My only problem ...
 Aine Ni Cheallaigh 1

Unintereupted power when switching between generator and inverter


Hello, I am designing systems to be used in buidings on the property I manage, and have become a little confused regard...
 Shawn Insall 1

Lightning protection


I was over on the store site and I need a little help. What if anything can I use to protect my inverter from a ground lighting ...
 Max Schulte 1

Testing Solar Panels


I have several PV panels that have been installed at various times over many years. I suspect that some have degraded or failed ...
 Jim Sluyter 1

240 transformer on inverter


I have a cabin on my property that is 600 feet from my power center. Instead of running a heavy line to it for occasional use I&...
 Russell Hanson 1

Cranking and deep cycle batteries


Hi, I recently connected my PV array to my house. I am using 4 8D batteries but they are the cranking type. What I want...
 Jorge Rodriguez 1

Hydro system


Can anyone tell me why the alternators in the hydro systems have such a small output ie 500-1500 watts.  If I changed out t...
 Michael Lee 1

Hybrid System


For a Hybrid System (Wind and Solar), do you need a device to regulate between them, since both generate electricity in differen...
 Jack Smith 1

Will the Air X give me hot water?


Hi all, I am new here so excuse me if I post irrelevant questions wrong places. I live in a windy spot in Denmark and ...
 Hans Lichtenberg 1

What MPPT???


Aboard my sailboat I have one 130W PV panel and three Rolls 4-D batteries, 185 AH each. I may add another 130W PV panel. What si...
 Stephen Brown 1

Charge controllers and Equalization


which controllers have an equalization feature ? Is it necessary ??
 James Gannon 1
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