The panel sits at a Level 1 bench, long before the batteries that make it worth having. That is the trap. Each one eats a piece of tech trash, so a roof covered on day two is a raid's worth of circuit boards spent on power that stops at sunset.
Its bill matches the medium battery line for line: the same board can either collect power or store it, so plan the two together. Before Level 2, pair the first panel with a small battery, which needs no tech trash at all and keeps a few lights on through the night.
Craft panels one at a time as the base grows. A spare panel is a poor place to keep a board: the recycler gives it back only half the time, and a C4 wants two.
Questions
Large Solar Panel ×10: how many resources?
High Quality Metal ×50, Tech Trash ×10.
Which workbench does Large Solar Panel need?
Workbench level 1.
How long does Large Solar Panel take to craft?
15 s for one, every step included.
How much scrap does researching Large Solar Panel take?