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Southern US regions saw solar irradiance up to 25% above average, while polar vortex-driven cloud and storms reduced irradiance across northern North America.

Persistent rain and cloud cover reduced solar resource across much of Australia in February 2026, especially inland and in the east.

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Most distributed solar operators assume meeting their TMY target means their assets are performing well. Popular Power's data across 500 MW says otherwise — the average site is leaving 16.7% of its weather-adjusted potential uncaptured, worth ~$30,000 USD per MWp annually. Here's how weather-adjusted tracking reveals what conventional benchmarks miss.

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You can now estimate PV generation losses from soiling using two industry-standard models, with Solcast-supplied precipitation and particulate matter inputs built in.

Europe’s February solar resource was split by a polar vortex disruption, with stronger irradiance in the northeast and storm-driven deficits across the west and south.

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Western Europe saw widespread irradiance losses from persistent storms, while Eastern Europe benefited from cold, dry air and clearer skies.

How did weather impact global solar production in 2025? Use our interactive map to explore irradiance anomalies, La Niña effects, and regional solar generation trends worldwide. Explore global solar irradiance trends, anomaly maps, and daily generation variability to see how weather shaped solar production in your region.

Widespread clear skies boosted Australian solar in January, though smoke, dust, and Tropical Cyclone Koji caused localised reductions.

Winter Storm Fern drove widespread cloud and cold across North America in late January, reducing solar irradiance and PV generation in affected regions.

The shift from centralised thermal generation to distributed renewable generation is fundamentally changing grid architecture. Managing this transition isn't just about building capacity - it requires a new data layer: granular, scalable forecasting that provides the observability to operate thousands of independent generators as a coordinated system.