3TIER Support
How can I find irradiance?
If you are looking for the annual mean irradiance data previously displayed by FirstLook, consider subscribing to our Solar Prospecting Tools. This product was developed in response to an outpouring of requests from users like you who want more information from our global solar dataset.
As a subscriber, you’ll recognize this product as an expansion of FirstLook’s intuitive design, however it offers more data and a greater level of utility. It’s all about providing more information and insight in a way that’s easier to manage, allowing users to make more informed solar prospecting decisions.
The Solar Prospecting Tools offer unlimited access to our dataset for:
- Annual and monthly mean GHI (Global Horizontal Irradiance)
- Annual and monthly mean DNI (Direct Normal Irradiance)
- Annual and monthly mean DIF (Diffuse Horizontal Irradiance)
Delivered through our highly customizable Dashboard interface, this product makes it simple to do side-by-side site comparison and create your own tool layouts.
Related Questions
- How do I enter a location?
- How did 3TIER create our global resource ranks?
- What does a wind rank mean?
- What does a solar rank mean?
- What does a hydro rank mean?
- How was the data behind the hydro rank created?
- Why did 3TIER change FirstLook?
- How can I find wind speed?
- I found my resource rank. What is the next step?
If you didn't find what you were looking for, please contact 3TIER Support for additional assistance.

