Blog

Persistent fog, cloud cover and heavy rainfall reduced irradiance across western North America, with Central Valley Tule fog driving anomalies as low as 40% below average.

Discover key insights from Solcast on how site measurements and fine-tuned models can make your PV forecasts more accurate and reliable.

Storm Claudia brought damaging winds, power outages and reduced solar irradiance across Western Europe in mid-November — with Portugal, Spain, Ireland and the UK particularly hard-hit.

Discover why moving beyond hourly Typical Meteorological Year (TMY) datasets to sub-hourly, multi-year Time series data is essential for accurate, risk adjusted financial modeling – and how this improves solar project returns.

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India’s southwest monsoon brought 8% more rainfall than average this year - and solar generation took a hit from the associated cloud.

Asset managers overseeing DER portfolios encounter persistent challenges with data acquisition and workflow efficiency. Physical pyranometers, while common in bigger sites, require frequent cleaning, calibration, and maintenance – increasing operational costs.

Strong seasonal signals are driving favourable early forecasts across the US, China, and Europe, pointing to likely increased solar generation through the end of the Northern Hemisphere spring in 2026.

Discover why sub-hourly (15-minute) TMY data provides more accurate, bankable solar resource assessments than traditional 60-minute (8760) datasets. Learn how higher-resolution TMY data improves yield modeling, investment confidence, and risk management for solar projects.

October solar conditions varied across North America—strong high-pressure systems boosted irradiance in the East, while storms and Hurricane Melissa led to reduced output in the Pacific Northwest and Caribbean.

Solcast data highlights a sharp irradiance divide across Europe in October, with storms dampening northern generation and stable weather boosting solar output in the south.

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