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Use of EMI Data of a PV P...

Use of EMI Data of a PV Plant in another plant

Created: Nov 18, 2019 12:23:00Latest reply: Nov 24, 2019 06:08:24 589 6 0 0 0
  Rewarded HiCoins： 2 (problem resolved)
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Hi, if one PV plant has a EMI (Enviroment Monitoring Instrument) for Performance ratio calculation, can we use the same EMI data in another PV plant for performance ratio calculation? Consider that both PV plant have same Solar Module orientation and installed in the same city/locality? If yes, please share a supporting document to understand the process of using the EMI data of one plant in another.

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BetterMing
Created Nov 19, 2019 04:04:03

Hello, Qadir

After discussion. Yes, you can do this in NetEco


From Monitor menu--select theplant--settings--select EMI--select Display EMI of other plants--choose the EMI

NetEco


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Qadir
Qadir Created Nov 19, 2019 04:07:34 (0) (0)
Thanks for answer. Really helpful. Good feature, this reduces customer's cost.  
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BetterMing
BetterMing Created Nov 18, 2019 13:29:08

Hello, Qadir
I don't agree with this way, the direction of components is the same, but other factors will also affect EMI. I will discuss with photovoltaic engineers.
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Qadir
Qadir Created Nov 19, 2019 03:10:37 (0) (0)
Yes, please confirm with Huawei Inverter Communication expert.
I heard this is possible.  
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BetterMing
BetterMing Created Nov 19, 2019 04:04:03

Hello, Qadir

After discussion. Yes, you can do this in NetEco


From Monitor menu--select theplant--settings--select EMI--select Display EMI of other plants--choose the EMI

NetEco


View more
  • x
  • convention：

Qadir
Qadir Created Nov 19, 2019 04:07:34 (0) (0)
Thanks for answer. Really helpful. Good feature, this reduces customer's cost.  
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4#
seven_solar
seven_solar Created Nov 24, 2019 06:08:24

We already use this feature on NetEcco at our sites. If sites are beside each other, it is very helpfull to reduce the cost. But if sites are far away from each other, calculated PR will be wrong.

Example: At Site 1, irradiation sensor EMI is installed and it is sunny, Site 2 is using data of same EMI but site is cloudy. In this case calculated performance ratio will be wrong.
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  • x
  • convention：

Qadir
Qadir Created Nov 24, 2019 07:03:34 (0) (0)
You are right
There are a lot of cases where end user has multiple buildings in the same locality, so therefore it is very helpful.  
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