In simple terms solar and wind
regulators work differently.
A solar regulator
turns the solar panel off and on rapidly to achieve the desired voltage.
A wind regulator
diverts the excess power so it is converted to heat.
The reason for this difference is a solar panel when open circuit (disconnected from the battery) does not cause any problems.
A wind generator
when open circuit (disconnected from the battery) speeds up, because there is no load, and can exceed it design parameters and speed. A wind regulator needs to keep a load on the wind generator
when regulating, solar panels
can have no load without damage.