We want to install a solar energy system, and we need to know the average solar radiation value in various places. Where can I find it?

Share a tutorial, I hope it will help you.

First, select the city or region you want to query. Take Nanjing as an example: "China-Jiangsu-Nanjing".

Then choose the data source you need, such as the European Medium-range Weather Center.

Then choose the time you need to find.

Finally, select the meteorological data you need "surface horizontal radiation" and click View.