The rock foundation structure for the photovoltaic support comprises at least three tensioning ropes, sleeves with axes extending in the vertical direction and pile bodies embedded into rocks, wherein the pile bodies are arranged around the sleeves and are anchor cables or. The rock foundation structure for the photovoltaic support comprises at least three tensioning ropes, sleeves with axes extending in the vertical direction and pile bodies embedded into rocks, wherein the pile bodies are arranged around the sleeves and are anchor cables or. Well, this harsh reality makes conventional foundation methods like spiral piles or concrete footings about as practical as building a sandcastle during high tide. Let's break down the core issues: Wait, no – let's clarify. That 200% cost figure? It's not just about diesel generators. We're talking. We design and produce photovoltaic structures with ground fixing, facades, rooftops, shades and floating PV (standing water lakes). From ground screws for rocky soils, helicals for soft soils, c-piles for ideal soils, to ballast for impenetrable soils.