[RE-wrenches] Trace SWs in Energy Management Mode

[Brian Mehalic]

True, but I don't think I'd want to risk the batteries and rely on customer
load management. And it seems like energy management mode (according to the
manual) should do what I want, so the lingering questions are:

Why is it staying in float/not going back to inverter after the timer
expires?

Why did one of the two go into bulk when the well pump came on, even though
battery voltage was fine?

Thanks, I appreciate all the input!  It's the weekend, but please keep it
coming!




Brian Mehalic
NABCEP Certified Solar PV Installation Professional™ R031508-59
IREC ISPQ Certified Affiliated Instructor/PV US-0132

PV Curriculum Developer and Instructor
Solar Energy International
http://www.solarenergy.org


On Fri, Oct 4, 2013 at 6:19 PM, Allan Sindelar <
allan at positiveenergysolar.com> wrote:

>  Brian,
> Expanding on William's suggestion, you might also consider a conventional
> 240V time switch on the AC1 input, to limit the times when grid charging
> might occur. The inherent limitation of this approach is that it while it
> would effectively prevent charging during peak hours, it would defeat
> allowing the grid to charge when really needed, so the owners would have to
> pay more attention to their usage habits. This may not be so bad, as it
> would only affect short-term usage and would not depend on weather patterns
> varying the solar insolation.
> Allan
>
>  ** ** ** ** **
>
> *Allan Sindelar*
> *Allan at positiveenergysolar.com* <Allan at positiveenergysolar.com>
> NABCEP Certified PV Installation Professional
> NABCEP Certified Technical Sales Professional
> New Mexico EE98J Journeyman Electrician
> Founder, *Positive Energy, Inc.*
>
> A Certified B CorporationTM
> ****3209 Richards Lane**
> **Santa Fe**, **New Mexico** **87507****
> *505 424-1112 office 780-2738 cell*
> *www.positiveenergysolar.com* <http://www.positiveenergysolar.com/>****
>
>
>  **********
> On 10/4/2013 3:28 PM, William Miller wrote:
>
>  Brian:****
>
> ** **
>
> Indeed LBX can have the unintended consequence of charging during peak
> hours if the loads draw the batteries down during that time.  This can be
> avoided if you can control the loads so all or most do not operate during
> peak hours.****
>
> ** **
>
> William****
>
> ** **
>
> PS:  The obvious logic is that if you can control the loads to operate
> minimally or not at all during peak hours, you don’t need inverters and
> batteries anyway.****
>
> ** **
>
> Wm****
>
> ** **
>
> *From:* re-wrenches-bounces at lists.re-wrenches.org [
> mailto:re-wrenches-bounces at lists.re-wrenches.org<re-wrenches-bounces at lists.re-wrenches.org>]
> *On Behalf Of *Brian Mehalic
> *Sent:* Friday, October 04, 2013 1:39 PM
> *To:* RE-wrenches
> *Subject:* Re: [RE-wrenches] Trace SWs in Energy Management Mode****
>
> ** **
>
> Thanks, I was thinking about using LBX, but the customer is really not too
> excited about it.  And based on the manual, Energy Management Mode seems
> like it fits the bill, but it doesn't seem to be going back into
> stand-alone/inverter mode when the timer is supossed to turn off.****
>
>
> ****
>
> ** **
>
> Brian Mehalic
> NABCEP Certified Solar PV Installation Professional™ R031508-59****
>
> IREC ISPQ Certified Affiliated Instructor/PV US-0132****
>
> ** **
>
> PV Curriculum Developer and Instructor****
>
> Solar Energy International
> http://www.solarenergy.org****
>
> ** **
>
> On Fri, Oct 4, 2013 at 3:42 PM, <Eric.Bentsen at schneider-electric.com>
> wrote:****
>
>
> Hi Brian,
> LBX would be better for the way this customer is using the system, because
> it only connects
>  to the grid when the batteries get low. Unfortunately, the timers do not
> affect LBX, so charging
> may occur during the peak rate....or it may not :C)
>
> Rgds,
>
> _____****
>
>
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