[RE-wrenches] Inverters and cold temps?

[benn kilburn]

Jessie,
Dan with Exeltech just gave some good insight to cold weather inverter capacitor tolerances in the thread "Electrolytic Caps vs. Thin Film Caps‏".  
We had -26C here (Edmonton) today and the next couple of days are looking like minimum -30C with windchill on top of that.  This is pretty typical at least a few times a winter season.
I have one install, circa 2006, with two SMA's outside and have no issues.  
I know that Enphase and SUNERGY PV Inverters are rated to -40C, but no others come to mind.  I would stick to the manufacturers that spec their equipment for -40C.
bundling up for the cold...benn
DayStar Renewable Energy Inc. benn at daystarsolar.ca780-906-7807 HAVE A SUNNY DAY





> From: dahlsolar at gmail.com
> Date: Mon, 16 Jan 2012 18:21:17 -0600
> To: re-wrenches at lists.re-wrenches.org
> Subject: [RE-wrenches] Inverters and cold temps?
> 
> All,
> 
> I live in an area where -40F is not uncommon and where -60F has been seen.  (northern MN)  I have yet to see an inverter that can be placed in locations like this and not exceed the warranty temp extremes.  
> 
> Enphase has a cold temp acceptability of  -40F last time I checked, and when I called they told me about an install in Antarctica using micros.  
> 
> I have installed inverters outside in the twin cities, not up here.  
> 
> What do you think about this problem?
> 
> Thanks as always,
> 
> Jesse
> 
> Sent from my iPhone
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