Panels are too big, sizes are all over the place, rectangles are awkward, and nothing connects. Cells in the human body are the building block of life; a single solar cell should be the building block of light.
Most 72 cells panels are about 2x1 meter and 60 cells about 65"x40", but you can't count on that and varies greatly by brand, and these oblong rectangles are ugly.
Standard cell sizes should be set for system planning and framing/racking, say 6inch 5W cells.
Squares are much more efficient shapes for inter-row shading and are, well, perfect.
Plus, smaller pixels can fill in the gaps and avoid obstacles without sacrificing space for the overall shape.
Equilateral triangles and Hexagons also Tesselate! Match color to shape: Blue Poly Hex & Black Mono SQ.
People want geometrically pleasing arrays laid out in a nice consistent shape, not awkward tetris contraptions.
I propose 1 meter squares of 36 cells arranged 6x6 and 1 foot squares arranged 2x2 and the single cell about 6 inches, possibly miniaturized further so a single cell could collect a single watt in 1 square inch. Pixelation at the 1-10Watt level would give lots of needed granularity to design any shape system.
These cells should be modular to interconnect like Legos - snap in place with PlugnPlay power + data links, no dangling wires, maybe new IEEE standard?
Solar Power Pixels by Sylveonté.