On grid w/ 54vdc battery [RE-wrenches]

[Jeff Clearwater]

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Hi Chris and all,

PV controllers talking to Inverters?  Hurray, about time!  Knowing 
you guys you are probably also going to include the KWHr meter in 
that loop?  I'm tired of sychronizing Tri-Metric, C40, and SW 
settings.  It's great when the customer is involved and knows what 
his Tri-metric readings mean but that's not always the case.  A 
simple equalizing charge becomes a whole education all over again.

The ideal grid/stand alone inverter in my mind would do it all and 
the meters the customer reads would be the same reference that the 
charge control and inverter are using  and hopefully including state 
of charge - not just voltage settings in the mix!  You could even add 
delivered vs produced energy vs sold back energy to the meter - that 
would be a great system fine tuning tool as well as a great way to 
promote solar!

Will the new inverter do any of that Chris?

Best,

Jeff Clearwater
Ecovillage Design


>
>The difficult part is setting the charge controllers to prevent them
>from allowing the voltage to get to high and cause the inverter to shut
>down and to not trip into float, reducing the PV array's output power.
>The bottom line is that the PV controllers (MPPT or not) needs to "talk"
>with the inverters to prevent conflicts from occurring (which is what we
>at OutBack are doing with our new products).
>
>Christopher Freitas
>OutBack Power Systems, Inc.
>cfreitas at outbackpower.com  www.outbackpower.com
>Tel 360 435 6030  Arlington WA USA
>
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-- 
~~~~~~~~~~~~~~~~~~~
Jeff Clearwater
Ecovillage Design Associates
Home, Community and Village Scale Renewable Energy Systems

2525 Arapahoe Ave, Suite E4, #280
Boulder, CO 80302
1-800-440-2523 PIN7071
Fax:  720-528-7813
clrwater at earthlink.net
jeffc at ic.org

Council Member - Ecovillage Network of the Americas - http://www.ecovillage.org
Founder:  Ecovillage Research, Development, and Demonstration Program:
http://www.home.earthlink.net/~clrwater/RDD/rdd.html
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