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Frequently asked questions about Solcast Modelling

This page represents the most frequently asked questions that the Solcast modelling team receive. Questions about global horizontal irradiance, global tilted irradiance, direct horizontal irradiance, direct horizontal irradiance and why one value might be greater than another.

Frequently asked questions:

On this page

• Frequently asked questions about Solcast Modelling
• Frequently asked questions:
• Why is my GHI value higher than GTI?
• Why is my GHI value higher than DNI?