Technical Discussion: Other

Have a technical RE question that doesn't fit in our other categories? Looking for some specific advice from others in the RE community? Ask it here!


Subject Started by Replies

Help with Solar Air Heaters

I work at a ReStore; we get donated building materials and resell them cheaply.  We recently got three Solar Air Heating Pa...
Staysee Bogan 0

BZ MPPT500 reaches float state at 13.3VDC

My BZ MPPT500 comes to float state as soon as the battery bank reaches 13.3VDC, and the led turns red. I tried to adjust the...
Lesly Dumont 0

induction motor

Can I use any induction motor to buit a wind generator?
Victor 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


Im using an 130W solar panel for lighting and BZ240 as achrger .It is clear from the circit of BZ240 that it is use a FET(IR...
Wahhab Razaaq 0

Using 2 panels with different voltage(open circuit) connect to same controller?

Hi, Apologize if this question has been asked before but I have a super slow and unreliable dial-up connection from a south ...
Jack Chow 0

"Off Grid" refrigeration

Recently I purchased an EZ-Freeze 19 cubic foot refeigerator/freezer. Here is some of the math that led to our decision.Danby - ...
Thomas Allen Schmidt 0

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

Voltage tolerance for various network switches, cable modems, etc.

I have a small off grid solar setup.  Evergreen 47W panel, through a 4.5A SunGuard charge controller connected to a 12V dee...
Jonathan Hunt 0

Newbie: Houseboat solar system suggestions

INFO: I am a part-owner of a house boat in northern Arizona. The boat sits in a slip about 1 day per week, connected to AC s...
Dan Baker 0

submersible water turbines

has anybody heard of a water turbine that is shaped like a culvert with the font end bigger than the exit end,and where you can ...
Barry Miles 0

Alaska weather & Unisolar amorphous solar panels

Anybody from Alaska have experience with these panels? The manufacturer's claims of greater efficiency with a broader l...
Roger Martinez 0

Skystream and Outback

Skystream's documentation makes it appear that it can be configured to work with an Outback to charge batteries and sell to...
Jeff G 0

Question about fronious inverter

I was thinking of a model IG 2000 inverter for 1 string of 12 sharp ND-167U3A solar panels I have. In the dc imput data for the ...
Victor Snodgrass 0

Solar energy

I have been asked to draw up a plan for a farm on Savanna land in tropical Africa. The land is extensive and I even wonder about...
Peter Gardiner 0

Wind Power and Electric Questions

I know the faster a wind turbine spins, the more electricity it can create, but is there a certain speed that a wind turbine sho...
Jason Sheridan 0

Small Battery Charging

Hello! Is there a way to charge my smaller batteries directly from my panels? Just to name a few, I have a cordless drill batter...
Sean Sullivan 0

Thin Film versus multi celled modules for a grid tie system?

I’m interested in developing a grid tie system around 3Kw. From a $ per watt perspective the Kaneka 60 60W Thinfilm Solar Pane...
Arnold K 0

air conditioning in tx

I am trying to figure out the best way to go about cooling my home. I live in north tx. My current thought was to get a small wi...
rick davis 0

Need Manual for Pulse PM60 Controller

I have not been able to find one on the web.  Can anyone help?
kscotay 0

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