Historical and TMY Data

Solcast advances the state of the art in cloud and radiation modelling

Overview

Modelling global cloud cover on a 2km scale using Solcast's industry leading radiation model.

High resolution and low uncertainty historical Time Series and TMY data for energy simulations and bankable solar resource assessments. Ready to integrate via API.

Trusted in 24x7 operations by 30,000+ users worldwide, including these brands

Cloud Cover

Detailed global satellite observations that capture cloud cover with precision

We model local cloud cover using a 2km grid, downscaled to 150m using a terrain grid, to render a precise and accurate global snapshot of historic solar irradiance.

Validation

Dataset supported by independent global validation

The data has low uncertainty and a quantified error range, making the data suitable for resource assessment, yield analysis, financial modelling, and any application requiring precision irradiance data.

Data Access

Access via API or Solcast web Toolkit

Ready to integrate directly into your systems via json or csv. API uptime of 99.9% with very low latency.

Bulk extract data using the Solcast API Toolkit.

Integration

Direct integration with major PV simulation software

Full suite of weather data from leading reanalysis datasets completes the collection of 20+ parameters available.

Data coverage from 2007 to 7 days ago, from hourly to 5 minute resolution.

Data available in formats ready to import into PVsyst, SAM, PV*Sol, PlantPredict, Helioscope, + more.

Historic Data Products

Time Series

The complete suite of irradiance and weather data required for effective monitoring, operation, and forecasting at your large-scale solar farm.

Typical Meteorological Year (TMY)

The complete suite of irradiance and weather data required for effective monitoring, operation, and forecasting at your large-scale solar farm.

Monthly Averages

The complete suite of irradiance and weather data required for effective monitoring, operation, and forecasting at your large-scale solar farm.

Try the Solcast API

Solcast takes on the many challenges of producing live and forecast solar data, so that you don’t have to. That means making the data easy to access, validate and integrate. We provide instant access to live and forecast data products via this web interface, which is free to try. These include direct estimates of global, direct and diffuse solar radiation, as well as PV power output.

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