[RE-wrenches] utility line voltage issues

[William Miller]

William:

It was my understanding that in special circumstances, inverter 
manufacturers are allowed to widen the allowances for specific 
units.  IIRC, a letter from the utility was required.  In some inverters, a 
change of firmware with the more liberal settings does the job.  My memory 
is subject to verification.


William Miller



At 10:06 AM 8/16/2009, you wrote:
>I'm beginning to wonder if the allowed voltage range for grid-tie
>inverters (+/-10%) is too
>sensitive in some networks and contributes more harm than benefit.
>This is close to home.
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