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Introducing Premium PV & Wind — our most comprehensive forecasting and first dedicated wind product, now on the Solcast API.

The June, July and August 2026 seasonal outlook points to a broadly neutral to positive irradiance conditions across many key markets, with clearer regional patterns emerging as the season progresses.

March saw mixed irradiance as cyclones and polar winds shifted cloud patterns—southern Australia trended below average, while coastal regions recovered between systems.

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Solcast is updating its Typical Meteorological Year (TMY) dataset to include data from 2025, this change will take effect on the 15th April, 2026. As a result, TMYs generated after this change will not be identical to TMYs generated before the change, because there is new data to select from and long term averages have changed.

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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.