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
[email protected]
Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of August Goers
Sent: Thursday, January 06, 2011 1:25 PM
To: RE-wrenches
Subject: [RE-wrenches] Xslent?
Hi All -
Have any of you heard of the Xslent XPX-A1000 microinverter?
http://www.xetenergy.com/#Tab-2_link-1
We're going up against them on a 10 kW system and I'm trying to figure out
if their claims about producing reactive power mean anything to us in the
real world. They are saying that their 6 kW system will outperform our 10
kW system.
I also noticed that their CEC efficiency is only 89%...
Best,
August
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