Board Thread:General Discussion/@comment-28877172-20160629045156/@comment-28208230-20160629135100

You said new, so I take it this is a new game? You need to search around and find fragments. Scan the fragments using the Scanner (which you need to craft using the Fabricator in the escape pod). When you have enough, you acquire the blueprint, which then unlocks the item in the build menu.

Each power source has a separate blueprint. Solar panel fragments are in the safe shallows and kelp forest.