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Satz
Residence
Hillcrest, California
3,400WAC
System Components:
Modules:(22) Sharp ND-205U1
Inverter(s):See explanation
Mounting: Flat roof tilt rack
Mr. Satz was motivated to go green through solar
power. Competing with multiple other vendors for
the project, Mr. Satz chose Sullivan for their
attention to detail and thoroughness throughout
the contractor selection process. Originally we
specified an inverter which we will simply call “Brand
F”. At the time, the inverter was supposedly
the most efficient on the market. In fact, the
CEC listed it as the most efficient and the manufacturer
solicited Sullivan Solar Power heavily to offer their
product. With multiple parties stating the inverter
was truly superior, we specified the inverter into
this project and three others. After monitoring
the site for three months we quickly discovered
inverter line “F” was an inferior inverter.
It did not turn on at all when it was cloudy and
when it was on it’s efficiency was poor. Again
we had a system approximately ¼ mile away
that used an SMA inverter with the exact same modules.
We found the other system was outperforming the
Satz system by at least 10%. After monitoring the
system further, we removed the “Brand F” inverters
and replaced them with a Sharp Sun Vista, supposedly
a less efficient inverter. Since doing so, the
system production has increased substantially and
it turns on and off at the same time as the SMA
system down the street. Again, what good is a system
if no one is able to substantiate it is producing?
Currently, about 50% of our competitors specify
the “Brand F” inverter in their projects. |
| Below is a real time
view of system production from this site: |
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