Introduction to field mismatch[edit | edit source]

No two solar panels are identical. Even after going through same manufacturing process, panels made for a specific ratings does not have same specific outputs. There is generally tolerance range of 5%. For example a two panel made for 100W specification can have have two separate ratings of 95W and 105W.

Series mismatch degrades solar cell performance.

Generally while installing a plant this factor is ignored and panels having extreme ends of specification might get connected in series which further leads to degradation. Plant which intended to give a desired output does not perform on its full potential.

Steps for Revival[edit | edit source]

  • Take initial readings(STC) for the plant.
  • Take Readings(STC) for individual Solar panels from solar analyzers.
  • Extract the data from analyzers and sort the solar panels on the basis of there short circuit current.
  • According to available infrastructure Re-rack solar panels on the basis of their efficiency within previously sorted panels on the basis of similar short circuit currents.
  • Now make Series parallel connections and convert it Total cross tied connection or any suitable configuration.
  • Take new readings(STC) of the plant. Mark the improvements.
Refer for different configurations Changing photovoltaic array interconnections to reduce mismatch losses: a case study
FA info icon.svg Angle down icon.svg Page data
Authors Nishant Arora
License CC-BY-SA-3.0
Language English (en)
Related 0 subpages, 1 pages link here
Impact 96 page views
Created January 15, 2017 by Nishant Arora
Modified March 2, 2022 by Page script
Cookies help us deliver our services. By using our services, you agree to our use of cookies.