[RE-wrenches] Xslent?

[August Goers]

Hi All -

Thanks for the helpful info! We did a little more research on our end and
I guess Apparent is the new brand name for the Xslent product. What
baffles me is the chart where they show that they're producing power
before and after sunrise and sunset:

http://www.apparent.com/products/mgi.html

The system must include batteries? Someone on their marketing team is
really going to town...

Best, August

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of jay peltz
Sent: Thursday, January 06, 2011 4:43 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Xslent?

HI Peter,

I agree with you that for now on residential it makes no sense.
However for commercial that might have to pay extra for PF issues, to have
the inverter adjust for this makes sense.
Its the reason they( inverter companies ) are doing it.
I"ve heard a better more complete reason of course from Bill Brooks, who
maybe can chime in.

sorry got away from me,


jay
peltz power
On Jan 6, 2011, at 2:34 PM, Peter Parrish wrote:

> I can't understand how any inverter WOULDN'T deliver its power with the
> voltage and current 100% IN PHASE.
>
> When the voltage and current are not 100% in-phase that represents
reactive
> power. Reactive power flows positive for a quarter of the AC cycle, then
> negative for a quarter of a cycle, then positive and then negative. The
net
> result over one AC cycle is ZERO power delivered to the load.
>
> So reactive power is worthless.
>
> Worse, it results in higher currents (and voltages) for the same amount
of
> in-phase power, putting additional stress on circuits.
>
> - Peter
>
>
> Peter T. Parrish, Ph.D., President
> California Solar Engineering, Inc.
> 820 Cynthia Ave., Los Angeles, CA 90065
> CA Lic. 854779, NABCEP Cert. 031806-26
> peter.parrish at calsolareng.com
> Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885
>

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