Simple and as cheap radar as it can be. It will keep running 100% day and night. Even in any low chance scenario where wandering aliens would find it, they only care about the radar itself leaving the solar panels and accumulators intact.
Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
Simple and as cheap radar as it can be. It will keep running 100% day and night. Even in any low chance scenario where wandering aliens would find it, they only care about the radar itself leaving the solar panels and accumulators intact.