9 computer software and software applications for the design and optimization of photovoltaic systems comprising any arrangements of monofacial and bifacial panels, inverters, transformers, electrical interconnections, energy storage systems and power management with respect to their installation, illumination and operating environments; computer software and software applications for data analysis of photovoltaic system performance in relation to energy yield dynamics, environmental conditions and meteorology; computer software and software applications for data analysis of photovoltaic performance in relation to cash flow and bankability; computer software and software applications for operation and management of photovoltaic systems; computer software and software applications for the management and optimization of energy flows within and between photovoltaic systems, energy storage systems and energy markets;