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:
- Development of PV modules for various urban solar applications in Singapore (e.g. building-integrated PV modules (BIPV) and bifacial solar sound barriers along train tracks)
- Glass-glass bifacial modules - development of PV modules tailor-made for the tropical climate
- Indoor and outdoor studies of potential-induceddegradation (PID) of PV modules
- Development of cost-effective and production-ready highperformance PV modules using multi-busbar halved-cell technologies
- Recycling and repair of PV modules
- Comprehensive cell-to-module (CTM) power loss analysis
PV Module Doctor: Cell-To-Module Loss/Gain “Diagnosis”
Selected elements of our PV module doctor service:
We perform a comprehensive cell-to-module (CTM) analysis for silicon wafer based PV modules to minimise the CTM losses or maximise the CTM gain. We also provide guidance on the selection of module materials 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.
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.).
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.
Cell mismatch analysis
Quantify the loss occurring due to the difference in maximum power point currents (Imp) of the individual series-connected solar cells.
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