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

[Mark Frye]

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
www.berkeleysolar.com 

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