| CPC H02S 20/30 (2014.12) [H02S 30/10 (2014.12)] | 14 Claims |

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6. A system comprising:
a bar;
a first spacing tool including:
a first base,
a first flange,
a second flange,
a first receptacle configured to receive at least a portion of a first rail that supports a photovoltaic module, and
a first collar defining a first channel disposed between the first flange and the second flange, the first channel being configured to receive a first portion of the bar; and
a second spacing tool including:
a second base,
a third flange,
a fourth flange,
a second receptacle configured to receive at least a portion of a second rail that supports the photovoltaic module, and
a second collar defining a second channel disposed between the third flange and the fourth flange, the second channel being configured to receive a second portion of the bar.
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