Solar

The Tomorrow.io REST Weather API provides the following information:

FieldValues (Metric, Imperial)Availability
solarGHI

The total amount of shortwave radiation received from above by a surface horizontal to the ground
W/m^2
Btu/ft2
F: [-7 days, +15 days]
I: T, I, M, R
A: WW
S: ∧ ∨ ~ ⧖
P: +
solarDNI

The direct (not diffuse) component of solar radiation reaching the earth's surface on a plane perpendicular to the sun's rays.
W/m^2
Btu/ft2
F: [-7 days, +15 days]
I: T, I, M, R
A: WW
S: ∧ ∨ ~ ⧖
P: +
solarDHI

The direct component of GHI reaching the surface of the earth at each point
W/m^2
Btu/ft2
F: [-7 days, +15 days]
I: T, I, M, R
A: WW
S: ∧ ∨ ~ ⧖
P: +