Electronic components and systems for monitoring and predicting the performance of components of photovoltaic energy generation and storage systems, namely, electric current and voltage monitors, computer network communication interface devices and microprocessors; downloadable computer software and networked systems composed of computers, computer network communication interface devices, and software for remotely monitoring and predicting the performance of components of photovoltaic energy generation and storage systems; photovoltaic energy generation and storage systems composed of photovoltaic cells and modules, photovoltaic inverters, batteries and components thereof in the nature of structural parts and fittings