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

doing research


I am a novice at this stuff and am looking for any advice out there. I live in Mexico, and may soon be living in a small village...
 Joshua Allen 4

Solar recirculating pump system for solar pool heater.


I am new to solar, but I want to put together a system that will circulate water out of and into my pool.  I have made some sol...
 Dan Busse 3

Grounding Exeltech inverter


I have a 24v PV system and am confused about grounding the Exeltech 1100 inverter.  The AC neutral, ground and chassis are ...
 James J 3

Cadmium Teluride Solar Panels

« 1 2 3 4 »
Cadmium Teluride Solar Panels - Does anyone know where I can get CdTe Solar Panels?  I found a company that has them, b...
 Jack Spamless 15

120 volts Vs 220 volts


Could someone educate me on country voltage of 120volts or 220volts? Countries like USA,JAPAN use 120 volts while UK,Nigeria use...
 Usman Kazaure Abdullahi 1

Wind Turbine wire size

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I just got a 150W wind turbine and I think I need to use 10 ga stranded wire. I am going 50 ft total.I have a 12v system but tha...
 Max Schulte 14

Solar for RV

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I'm considering installing a solar system on a RV. I figure I use about 50ah a day. Our normal camping is from Friday after...
 Ken Rabideau 26

What size Solar panel do I need to maintain unused 70 Amp Car battery in car?


It's in Seattle area which is not particulary sunny. The car is a 2001 VW Pasat and has the usual Alarm going all the t...
 Douglas R 3

solar thermal drain down ? relief vlv / vacume brake

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my question is i would think there would have to be some kind of vacume break at the top of the collector to be able to drain do...
 David Leighow 7

MX-60 question

« 1 2 »
I have 6 Solarworld 175w panels currently connected in parallel to an MX-60. Each panel runs into an combiner box at the array, ...
 Andy D 8

How to find the tilt factor for a given tilt angle


Hi all!!!! I want to find the radiation on a tilted module. to find that i need to multiply radiation on horizontal sur...
 Tech Guy 3

Grounding panels


I am trying to find out the ground wiring sizes for a roof mounted array. Is the frame ground also the lighting ground, if not d...
 Charles Harte 2

Battery State of Charge

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Most of the 12volts inverter cutout the battery at 10.5volts to prevent over discharging.   Based on the battery st...
 Usman Kazaure Abdullahi 14

Load controller function


I have a BlueSky charge controller with a 25amp load controller function. What is this used for and should I have it connected?
 Steve Dovel 2

Newbie needs help!

« 1 2 »
I'm new at installing RE and trying to understand. I have installed a C-Series 60 Amp 12/24V Regulator or LVD or Load Div. ...
 Roxie Perkins 9

Seasonal pv/solar pool heating


I have a 28,000 gallon swimming pool in a wooded area in Raleigh, NC.  The pool has the problem of being generally a little too...
 Wayne Jones 2

mixing solar panel voltages within a single solar array

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Are there any problem running different voltage panels as part of the same solar string. I have a SB1800u and 10 PW100...
 John Anderson 9

Leak in Collector plate


Hello .. I have an old solar hot water system.. it appears that my differential controller is screwed up (just ordered the SunEa...
 Dan Jordan 0

Battery size calculation based on insolation and load


How to find the size of the battery ie., based on load or based on the solar insolation. If i hav a laod requireme...
 Tech Guy 1

One diversion controller for Wind and Solar


I have heard conflicting statements from a number of sources. I have yet to get a clear answer, just personal preferences with n...
 Bently Harris 2
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