Generates electricity from light sources.
Solar panels provide ⚡️ Electricity, which is stored in 🔋 Batteries.
It is the only common resource that cannot be transferred nor recovered (from deconstructing/demolishing) which makes having good calculations very important and a problem if you run out, specially when chaining Hyperspeed jobs. It is also consumed, in small quantities, by engaged defensive buildings and other auto-renewed jobs (Automatic Scans). On the other hand, 🌞 Solar Panels are the fastest resource generator building.
See Resources for a summary on how each resource works.