The ornamental design for a solar panelsupport, as shown and described.
FIG. 1 is a front elevational view of a solar panel support showing our new design, the rear elevational view being a mirror image of the front elevational view shown;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a front, bottom, and right side perspective view thereof; and,
FIG. 7 is an enlarged view from callout circle 7 of FIG. 6.
The dot-dash broken lines represent the boundary of the claimed design and form no part of thereof.