Once you try to use the first rest area in the Wasteland, Adam will inform you about a Solar Tower that needs to be reactivated. You'll be able to spot it on the horizon. For the most part, you can just run toward that area and you'll find yourself at the base of the tower in no time.
When facing the tower's terminal, run to your left and you'll see a gap to leap across, with a slightly higher platform on the other side. Jump and dash (X followed by circle) to reach the other side. Help the yellow robot by holding R2 to activate the tower.
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