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

[Ray Walters]

Exactly.  That's why I always have a load profile for each system on 
file, and as soon as they're doing something different, we're off the 
hook.  It opens the door smoothly towards upgrading the system for their 
new loads.   And yes a new load profile, until they add even more in 5 
years.

R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760

On 1/21/2014 10:26 AM, Dan Fink 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
>
>
>
> On Tue, Jan 21, 2014 at 10:22 AM, Ray Walters <ray at solarray.com 
> <mailto:ray at solarray.com>> wrote:
>
>     On these small projects, its very important to nail down the exact
>     load, to keep the pricing sane.  I list on the estimate what the
>     system is designed to do; for instance 18 w load 24 hrs/ day. 
>     Then if something goes wrong and they are running more than they
>     should you just gently point out that that was not what the system
>     was designed to do.
>     I learned a long time ago, that you can't take name plate power
>     draw numbers, or count on the manufacturer to provide those
>     numbers; you've got to confirm it with your own monitoring equipment.
>
>     R.Ray Walter
>     CTO, Solarray, Inc
>     Nabcep Certified PV Installer,
>     Licensed Master Electrician
>     Solar Design Engineer
>     303 505-8760  <tel:303%20505-8760>
>
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