The new tool will facilitate the design of photovoltaic building systems

News, 17/12/2020

The CTU University Centre for Energy Efficient Buildings is developing a design tool for energy specialists as part of the activities of the CAMEB National Centre of Competence, which will determine realistic solar coverage and the use of produced electricity during individual months of the year. The results will be used for subsequent economic and emission balances of photovoltaic systems in buildings.

Researchers from the Department of Energy Systems of CTU UCEEB are testing a simplified method of energy balance of photovoltaic systems for the purpose of determining realistic coverage of the building's electrical energy needs. During the implementation of the sub-project Optimalizované systémy obnovitelných zdrojů energie pro NZEB (RESOPT), which runs within the framework of Národního centra kompetence CAMEB, they performed hundreds of detailed simulations with different profiles of electricity consumption by household appliances (users away from home during the day, during the day in the home, different energy requirements of appliances ) in different buildings (heat loss, occupancy) with different methods of electric heating and heating (direct heaters, heat pump, electric storage heating) for different sizing of the PV system (installed peak power, battery storage capacity).

The goal of the research is a design tool for energy specialists, which, based on the ratio of electricity production by the PV system to electricity consumption, will determine the solar coverage and the use of the electricity produced in individual months.