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A three-panel schematic showing geothermal borefield designs. The first panel depicts a compact borefield, the second an expanded borefield, and the third lists limitations such as limited land availability and increased drilling complexities.

A three-panel schematic showing geothermal borefield designs. The first panel depicts a compact borefield, the second an expanded borefield, and the third lists limitations such as limited land availability and increased drilling complexities.

Create a minimalist scientific schematic, top-view, showing why enlarging a geothermal borefield is often constrained in dense urban sites. Use three side-by-side panels on a white background. Panel 1: a rectangular urban plot with a building footprint occupying much of the site and a small available drilling area around it, with a compact borefield represented by evenly spaced boreholes. Panel 2: the same plot but with a larger required borefield for cooling-dominated operation, extending beyond the available site footprint using dashed red outlines. Panel 3: annotate the consequence: limited land availability, more drilling complexity, and impractical expansion. Use clean architectural lines, muted grey tones, and green highlights for the borefield. No photorealism, no decorative elements, only a professional academic infographic style. Mehr sehen