[RE-wrenches] Very small PV systems for surveillance or other "micro" loads

[jay peltz]

HI Jason,

My only thing to add is the smaller the system the more care I take in design.
And on most of my systems I install a KwH meter.  Makes it very easy to see what they really use a month etc.

Good luck,

jay

peltz power
On Jan 21, 2014, at 11:14 AM, Jason Szumlanski wrote:

> I'm well aware of load creep. After installing a 6kW off-grid system I went out to a site to diagnose performance issues. The owner had purchased a six-seat electric golf cart and was charging it off the inverter. I had to bite my lip to avoid hysterical laughter over this "small" unmentioned load.
> 
> The golf cart had eight T-105's and the house battery was sixteen S-530's. The owner didn't believe that the golf cart battery had over 25% of the house battery capacity.
> 
> That was an expensive mistake (for him).
> 
> I like the idea of listing estimated consumption somewhere, but I don't want to become contractually bound to supply or store a certain amount of energy. Performance guarantees are tough, especially when you are not the operator.
> 
> 
> Jason Szumlanski
> Fafco Solar
> 
> 
> 
> 
> On Tue, Jan 21, 2014 at 12:26 PM, Dan Fink <danbob88 at gmail.com> wrote:
> I also see lots of "load creep" Ray...."oh, forgot to tell you....we need to add some all-night LED area lighting to the system. It won't use much power......"
> 
> Dan Fink

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