1-kWp photovoltaic system at the

The paper presents the advanced measurement system being developed for the 1 kWp photovoltaic generator installed at the Technical University of Lodz, at the Department of Microelectronics and Computer Science, in the city centre. The main aim of research is verification of feasibility of photovoltaic generator in polluted environment and influence of I-V characteristics mismatch on long-term performance. The photovoltaic system is equipped with comprehensive monitoring system which collects climatic data and I-V characteristics of all PV modules under operation of PV generator. The monitoring system is based on the custom-made microprocessor board, designed with view of reliability of the data collection. The key module of the system is advanced I-V characteristics scanner with a switching matrix.