The interconnection of solar cells by shingling increases the active cell area in photovoltaic modules. Cell-tomodule (CTM) gains and losses change significantly. We present models to calculate these gains and losses for shingled cells. Module efficiency and power can be increased with the shingle interconnection technology by +33 Wp and +1.86% abs in the analyzed design, when compared to common ribbon-based interconnection. While the CTM-ratio for efficiency improves due to shingling, the CTM-ratio for power is lower than for conventional modules with ribbon or wire cell interconnection.

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Abstract. During the last years SOITEC has co-developed a 4-junction solar cell (SmartCell TM ) with world record conversion efficiency. To verify suitability for concentrator application in SOITEC's Concentrix TM CPV module, early long-term outdoor performance monitoring was initiated. To date, some module prototypes have been already exposed for more than one year in desert environment; no performance degradation is observable. Accelerated ageing testing executed on the cells also indicates comparable reliability performance to standard triple junction concentrator solar cells.