EU upgrades open-access tool to assess residential solar-plus-storage yield
The European Commission has released version 5.3 of PVGIS, a free online tool available in five languages. It provides detailed calculations of solar radiation and photovoltaic system performance worldwide, excluding the poles.
PVGIS estimates electricity production at specific locations, seasonal production variations, and the impact of battery energy storage on the use of generated power.
The tool offers options for grid-connected and off-grid systems, fixed or tracker-mounted solar panels, and different photovoltaic technology. For trackers, users can define angles or can let PVGIS calculate them to maximize energy output.
The software also simulates energy flows for off-grid systems featuring battery energy storage, using solar radiation data to assess how stored energy supports daily electricity consumption.
PVGIS meteorological analysis integrates hourly data on nine climate variables, formatted for building energy tools, and its solar radiation calculations include hourly, daily, or monthly values for system performance.
The tool can analyze coastal areas up to 25 km offshore with expanded global mapping capabilities for smaller regions. It also accurately models PV performance on snow-covered surfaces, broadening its practical applications.