This wiki is about 0.17, the current experimental version of Factorio.
Information about 0.16, the current stable version of Factorio, can be found on stable.wiki.factorio.com.
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The Portable solar panel is the basic power generating unit for Modular armor. It provides only a small amount of power usable only for small assistance modules.
Can be used to recharge Energy shields out of combat, but is nearly useless for Personal laser defense or Basic exoskeleton equipment, even with a large number of Batteries.