The DLOOP is a structure of non-overlapping tiles (typically
corner connected) occupying two layers. Interest in the DLOOP
arises from Photo-Voltaic (PV) tracking applications.
The tiles (PV modules) of contemporary tracking systems are
within one contiguous layer, i.e. a side-by-side platform (SSP).
Trees collect solar energy using branching structures to support
leaves which are, similar to PV modules, planar surfaces of solar
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