[RE-wrenches] Grid-Tied, PV by AC or DC

[Maverick Brown [Maverick Solar]]

My two cents:
 
"battery-based inverter w/ PV on the DC side via charge controllers"
 
Simply replace the GT inverter with a Xantrex 600V Charge Controller plus
the 48V Grid Interactive Inverter of your choice and added battery bank,
etc.
 
Until the market is saturated with unneeded GT Inverters, you will be ok.
;-)
 
Try your best to provide enough battery for at least 24 hours of outage at
50% DOD. You may have add a Sub-Panel or Manual Transfer Switch.
 
Thanks
 
Maverick
 
Maverick Brown
BSEET, NABCEP Certified Solar PV Installer R # 091209-26
President & CEO
Maverick Solar Enterprises, Inc.
Billing:      PO BOX 1229, Dripping Springs, TX 78620
Office:       512-919-4493
Fax:           512-607-6398
Cell:          512-460-9825
Corporate:  <http://www.mavericksolarenterprises.com/>
http://www.mavericksolarenterprises.com
 
 
 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of
toddcory at finestplanet.com
Sent: Thursday, March 01, 2012 5:46 PM
To: RE-wrenches
Cc: 'RE-wrenches'
Subject: Re: [RE-wrenches] Grid-Tied, PV by AC or DC


excellent question mark... and one which has been on my mind as well, being
most of my work is bbgt.

 

todd

 

 

 

On Thursday, March 1, 2012 11:37am, "Mark Frye" <markf at berkeleysolar.com>
said:



Folks,

I have a residential grid-tied customer in a net metered utility with a
favorable TOU rate.

They could use about 10 kW of PV to offset 100% of their usage.

But, they also complain about regular power outages in their neigborhood.
They don't want a generator.

With reliable AC coupling now available, do we yet know which is the more
advantagous architecture; grid-tied, battery-based inverter w/ PV on the DC
side via charge controllers, or grid-tied, battery-based inverter w/ PV AC
coupled via grid-tied, utility-based inverter?

Your thoughts? 

Mark Frye 
Berkeley Solar Electric Systems 
303 Redbud Way 
Nevada City,  CA 95959 
(530) 401-8024 
 <http://www.berkeleysolar.com> www.berkeleysolar.com 




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