Grid-Tie Inverters with Batteries [RE-wrenches]

[Christopher Freitas --- OutBack Power]

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J.R. Yago wrote:
> I think it all depends on what your client wants and is willing to pay 
> for.  However, local utility rates and rebate programs will definitely 
> have an affect on this battery or no battery decision.
> 
> As long as we make it very clear that a grid tied system without a 
> battery provides absolutely no back-up power, they can decide if the 
> added battery and inverter cost is worth it or not.  With electricity in 
> Virginia selling for about 8 cents/kWh and no state rebate program, 
> selling back to the grid here is more of a "bonus" for those on the grid 
> who are buying or already own a pv system primarily intended for 
> emergency back-up.

Jeff makes a very good point here - not all of the PV market is like 
California... before the rebate program was in effect - over 90% of the 
systems being installed in CA where grid-tie with battery.  Of course, 
there weren't SunnyBoys yet - but I think it still makes a good point 
that when people spend their own hard earned money they make different 
decisions.  

Christopher Freitas
OutBack Power Systems, Inc.
cfreitas @ outbackpower.com  
www.outbackpower.com
Arlington WA USA
Tel 360 435 6030  

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