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PID KILLER SUCCESS STORYS

NORTHERN GERMANY

DATA & FACTS

PV-Plant:

  • Plant size: 12 MW (different modules)
  • Inverter: String inverters
  • Modules: 235W / polycristalline

Test set up:

  • 6x String inverters
  • 6x PADCON Float Controller SI
  • Inspected modules: 235W

Test period:

11.08.2015 - 30.09.2015

Test set up:

Float Controller SI - Plant Protection

An Electroluminescence (EL) test organized by the customer brought certainty that a major part of the modules is influenced by PID. To be able to evaluate the recovery process measurements have been performed with 8 string packages beforehand. Because the plant is equipped with string inverters PADCON Float Controller SI for String Inverters have been installed. The Float Controller SI is desigend for the specific use with String Inverters and is able to supply up to 3 MPPT’s with a total of max. 110 kW. After a test period of 50 days the comparison measurments show astonishing improvements of up to 12,7% of the output of the string packages.

Improving module power output by 12,7%

The graphic demonstrates the recovery process based on the output of the string package:

Improving module power output by 12,7%

Israel

DATA & FACTS

PV-Plant:

  • Plant size: 3,0 MW
  • Inverter: Central inverter / 5 DC Input / 5 MMPT
  • Modules: 245W / polycristalline

Test set up:

  • 1x Central inverter
  • 1x PADCON Float Controller CI Basis
  • 1x PADCON Multi Connector

Test period:

13.01.2015 - 23.02.2015

Test set up:

Float Controller CI30 - Plant Protection

First, we equipped only a part of the plant with PADCON Float Controller, for testing purposes.
Since the inverter has 5 individual performance parts, we installed addition to the PADCON Float Controller CI, a Multi Connector, to supply all the power units / MPPT.

In addition to the comparison measurements at each string package, we observed the recovery development of the photovoltaic plant on the monitoring system. Through connecting the Float Controller with the monitoring system, we could easily supervised the individual parameters and the operation of the device. In this test installation, is in addition to the enormous recovery rate, positive to watch, that the individual string packages returned within the test period to the same proficiency of performance (PR), although they were different affected with PID, too test launch.

Following the announcement of the test results, the entire system was equipped with PADCON Float Controllers and performed since then at a high level (> 83% PR)..

Improving module power output by 18,82%

The graphic demonstrates the recovery process based on the PR-performance:

Improving module power output by 18,82%
  • NORTHERN GERMANY
  • ISRAEL