[RE-wrenches] My .02 - 12/24v garage door opener.....

[jay]

So why not use one of the garage doors that has a built in backup battery and just charge the built in battery directly?
Its got all the internals already done?

Install a CC and PV module and you are all done?

Jay

peltz power



> On Feb 1, 2018, at 12:18 PM, Jerry Shafer <jerrysgarage01 at gmail.com> wrote:
> 
> John
> Samlex makes small pure sine wave inverters from 12 to 48 volts and down to 150 watts
> Jerry
> 
> On Wed, Jan 31, 2018 at 5:23 AM, Dana <dana at solarwork.com <mailto:dana at solarwork.com>> wrote:
> Wow, this is flash from the past…  I had almost forgotten about running DC in a house or garage.
> 
> With todays inverter efficiency’s & costs VS. the cost of proper DC wire sizing, garage lighting?, & having to modify a reliable lift system, etc.
> 
> Is there really a cost savings in the longs run?
> 
>  
> 
> It’s a garage, are you going to need to run any AC tools, battery chargers?
> 
> I mean it is a potential man cave, really now….
> 
>  
> 
> ----------------------------------------------------------------------------
> 
> Dana Orzel                              Great Solar Works, Inc.
> 
> C - 208.721.7003 <tel:(208)%20721-7003>                       dana at solarwork.com <mailto:dana at solarwork.com>
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> From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org <mailto:re-wrenches-bounces at lists.re-wrenches.org>] On Behalf Of Darryl Thayer
> Sent: Wednesday, January 31, 2018 3:46 AM
> To: newrewrenches <RE-wrenches at lists.re-wrenches.org <mailto:RE-wrenches at lists.re-wrenches.org>>
> Subject: Re: [RE-wrenches] 12/24v garage door opener.....
> 
>  
> 
> I have measured the energy used by a garage door opener on more than one occasion.  they draw a fair amount of power while operating, however. they don't draw power otherwise so the total energy is very low.  I am wondering if a low cost non pure sine inverter to AC operated off the switches which would be low voltage would not serve the same low energy use and reliability of a DC garage door opener
> 
>  
> 
> On Jan 31, 2018 2:39 AM, "John" <john at gosolar.co.nz <mailto:john at gosolar.co.nz>> wrote:
> 
> Hi all,   any recommendations where to find 12 or 24v garage door openers.    Can’t remember this coming up on the list beforehand.   It is just for a single car garage door.    Don’t want to use an inverter, usually better to go direct to a dc motor.
> 
> Once I have a suitable opener, I can design the rest of the system around it.
> 
> Thanks for any/all input.                               John Veix,     GoSolar Ltd,   N.Z.
> 
> 
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