05-25-2009, 08:41 AM
Daniel,
I understand.
My preference for grid-tie is based on several things.
The cost, handling, maintainance, storage and replacement of batteries.
The unlimited access to more power than your PV system can generate.
My power goes down very seldom.
The loss of efficiency converting to AC. 30%?
The policy of Helco (and other electric companies too)not paying for excess power that you put into their system needs to be changed by state or federal law.
That's my opinion and worth every dime,
Dan