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EU‑commission tool offering free solar radiation, temperature and PV performance data for Europe, Africa and Asia.
Comprehensive, high‑resolution solar irradiance database for the United States with API access for developers.
Real‑time and historical solar resource data, satellite‑derived irradiance, and PV performance analytics for utilities and developers.
#5 Solcast
Cloud‑based solar forecasting platform delivering minute‑by‑minute irradiance forecasts, historical data and API integration.
#6 Meteonorm
All‑in‑one weather data software providing global solar radiation, temperature, and humidity data for PV modelling.
Web‑based PV system design and performance simulation tool with automatic shading analysis and financial modeling.
#8 Aurora Solar
End‑to‑end solar design platform offering 3‑D site modeling, shade analysis, performance simulation and proposal generation.
#9 PVSyst
Industry‑standard PV system design and simulation software with detailed shading, loss, and financial analysis modules.
#10 PV*SOL
Dynamic simulation tool for residential, commercial and utility‑scale PV plants, featuring 3‑D shading and battery integration.
Free DOE‑developed software for performance and financial modeling of renewable energy projects, including PV and storage.
#12 RETScreen
Comprehensive clean‑energy management software for feasibility, performance, and emission analysis of PV projects.
#13 HOMER Energy
Hybrid optimization model for renewable energy systems, enabling PV sizing, storage sizing, and economic evaluation.
#14 EnergyPlus
DOE’s whole‑building energy simulation engine that can model PV array performance within building energy analyses.
#15 SunDAT
Solar data platform delivering high‑resolution irradiance, temperature, and PV performance data via API and web portal.
#16 OpenSolar
Free, cloud‑based solar design and proposal software with automated shading analysis, performance estimates and client‑facing reports.
Design tool integrated with SolarEdge hardware, providing system layout, performance simulation and inverter selection.
Monitoring and design suite for Enphase micro‑inverter systems, offering performance analytics and system sizing tools.
#19 SolarPlanner
Web‑based PV layout and yield calculator focused on quick site‑assessment and financial feasibility for installers.
#20 SolarAnalytics
Data‑driven platform for solar asset monitoring, performance benchmarking and predictive maintenance.
#21 SolarCalc
Simple online calculator for estimating PV system size, energy production and payback based on location‑specific solar data.