Quality check protocol for control the losses of power on large associations of photovoltaic generators

Abstract

The economic balance of large area photovoltaic generators suffer from even small losses on efficiency. The present work studies the causes of losses of power causes by the solar panels: The rigor of the manufacturer fullfiling the generators specifications, the dispersion on the electric characteristics of the generators associated either in series or in parallel, and not less important, the effect of the working temperature on the effective power of the generator. Modules quality, uniformity and time stability have been tested. The final results give rise to some recommendations to optimize the efficiency of large association of generators. The validity of those recommendations is discussed with reference to a sample of 10 5 experimental data collected in the grid of 400 PV from the Pierre Auger Project.