[RE-wrenches] FW: Enphase performance

[Randy]

Marco,

My email doesn't seem to work on wrenches, so I am replying to you directly.

 

We definitely experienced an overstatement. 

 

We have a client who installed 5kW on a string inverter and 5kW on enphase
and it is that side-by-side comparison that enabled us to positively
identify a problem. There was a significant overstatement of output. We
finally got a Enphase person who told us it was a software glitch. The
problem appears to be fixed.  They explained to us that our problem was
isolated without giving us a detailed explanation of what happened.  Since
that problem was fixed, we have seen no difference in output between a
string inverter and enphase.

 

Randy

 

Randy Sadewic

Positive Energy

 

 

 

Randy Sadewic

Positive Energy

 

Office: 505 424-1112

Cell:    505 570-0137

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Marco
Mangelsdorf
Sent: Friday, May 07, 2010 12:11 AM
To: 'RE-wrenches'
Cc: 'Douglas Bath'
Subject: [RE-wrenches] FW: Enphase performance

 


Marco,

 

I have a revenue grade kWh meter on my 3 Enphase 175 system that is owned by
the utility (production based incentive in WA state) and the Enphase
monitoring reads about 6% over the revenue meter. This has been over a one
year period. I've been very pleased with the performance using either
measurement.

Brad
AEE Solar

 

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