PV System Installation Assessment Based on Power Measurement for Balcony Power Plant Applications

Photovoltaic systems for balcony power plant applications are rapidly growing, and with it comes the need for holistic concepts for energy utilization. Since these systems are intended for users without deep technical knowledge, the applications need to work and optimize themselves automatically without the user having to interfere. Therefore, this article presents a method to estimate the azimuth and the inclination of photovoltaic modules by analyzing the on-site power data and comparing it to a power forecast by Forecast. Solar, thereby making it unnecessary for users to provide these values themselves. The information gained hereby can be used to obtain and optimize a power forecast considering prevailing on-site conditions for energy management purposes. This is done by using low-volume power data at hourly resolution, where a single day of data is enough to make an estimation. The results of this method provide PV installation parameters with a resolution of the azimuth in 45
$^{\circ }$
-steps and the inclination in 15
$^{\circ }$
-steps, which are matched to the best-fitting power forecast.