Development of PV Modules

SERIS operates a PV Module Development Laboratory where PV modules ranging from small single-cell modules for testing purposes up to full-size 72-cell modules can be fabricated. Services offered by the lab include:

  • Processing of individual module components into full prototype modules for subsequent testing and qualification
  • Detailed characterisation of PV module components (glass panes, encapsulants, ribbons, backsheets, etc)
  • Partial processing of PV modules for process or component verification
  • Quality and yield analysis of PV module components
  • Identification of the root causes of PV module failure after certification tests
Selected research activities currently conducted in the PV Module Development Group include:
  • Glass-glass bifacial modules - development of PV modules tailor-made for the tropical climate
  • Indoor and outdoor studies of potential-induced-degradation (PID) of PV modules
  • Development of cost-effective and production-ready high-performance PV modules using multi-busbar halved-cell technology
  • Recycling and repair of PV modules
  • Comprehensive cell-to-module (CTM) power loss analysis

PV Module Doctor: Cell-To-Module Loss/Gain “Diagnosis”

We perform a comprehensive cell-to-module (CTM) analysis for Si wafer-based PV modules to minimise the CTM losses/maximise the CTM gain. We also provide guidance on the module materials selection and the optimisation of the module fabrication processes, as well as extensive characterisation services to materials manufacturers to add value to their product development and product optimisation.

Selected elements of our PV module doctor service:

  1. Power loss analysis for active module area
    Quantify the reflectance loss, parasitic absorptance loss, and optical coupling gain of front encapsulation layers (glass, EVA, POE, etc.).
  2. Light harvesting analysis from inactive module area
    Quantify the light harvesting from inactive areas of a PV module (e.g. cell-gap area, ribbon) using EQE line-scans.
  3. Cell mismatch analysis
    Quantify the loss occurring due to the difference in maximum power point currents (Imp) of the individual series-connected solar cells.
  4. Resistive power loss analysis
    Quantify the power loss in various components used to interconnect the solar cells, as well as leakage currents at various points in the module.

Cell-to-module (CTM) power loss analysis at SERIS

For further information, please contact:

Dr KHOO Yong Sheng
yongshengkhoo@nus.edu.sg