Investigating the seasonal performance of amorphous silicon single- and multi-junction modules
conference contributionposted on 15.03.2011, 16:52 authored by Ralph Gottschalg, J.A. del Cueto, Thomas R. Betts, Sheryl R. Williams, David Infield
The seasonal performance fluctuations observed in amorphous silicon solar cells are investigated. The dominant forces driving the increased efficiency in summer are identified, from long-term measurements, to be thermal annealing and spectral variations. A method for correcting for changes in the incident spectrum is applied in order to correct for the seasonal changes. In a second step, the fill factor is investigated in order to establish the magnitude of thermal annealing seen by these devices. The magnitude of each effect is investigated.
- Mechanical, Electrical and Manufacturing Engineering
- Centre for Renewable Energy Systems Technology (CREST)