Solcast provides high quality historical solar data with global coverage

Instantly access TMY and Monthly Averages data from within PVsyst.

Import solar data directly into PVsyst

Bankable data, wherever you need it, when you need it.

Simplify your data acquisition process.

No lock-in contracts, economical pricing.

Import solar data directly into PVsyst

Trusted by 13,000+ users worldwide

Bankable dataset designed for solar

High-resolution dataset built using 1km2 satellite imagery, three dimensional cloud modelling and aerosol tracking.

Global coverage

Bankable dataset designed for solar

Lowest uncertainty

Verified independently, trusted by thousands. Solcast data has the lowest uncertainty available.

GHI

Region Bias Bias deviation 95% confidence interval Sites considered
Global 0.0% 2.01% [-4.02%, 4.02%] 46
Americas 0.0% 1.25% [-2.50%, 2.50%] 18
Europe 0.0% 1.09% [-2.18%, 2.18%] 9
East Asia & Oceania 0.0% 1.68% [-3.36%, 3.36%] 11

DNI

Region Bias Bias deviation 95% confidence interval Sites considered
Global 0.3% 4.69% [-9.18%, 9.60%] 45
Americas -1.5% 4.50% [-10.54%, 7.46%] 18
Europe 0.6% 4.92% [-9.17%, 10.51%] 9
East Asia & Oceania 1.0% 4.96% [-8.90%, 10.94%] 11

Free to start, priced for scale

You’ll get 2 TMY and 5 Monthly Averages files per month.

Check out our pricing page to review paid access options, from just a few simulations a month, to many hundreds.

Free to start, priced for scale

Evaluate now, for free

Get started quickly in PVsyst by entering your email address, or register using the Solcast API Toolkit.