The effect of partial shading on the reliability of photovoltaic modules in the built-environment

Special Issue on ‘EU PVSEC 2023: State of the Art and Developments in Photovoltaics’, edited by Robert Kenny and João Serra

Open Access

Table 4

Simulation of the annual duration of partial shade for different shadow intensities. Diode activation, hot-spot formation, and a stable hot-spot location were assumed.

Shadow intensity	Duration of daily partial shade	Percentage of clear sky days per year (Mendrisio, Switzerland)	Annual duration of partial shadow
Low intensity	5 min	36%*	11 h/year
Medium intensity	15 min		33 h/year
High intensity	30 min		66 h/year

*Calculated from the monitored global horizontal and diffused irradiance.

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