From their help centerhelp center:
Skeptics is about applying skepticism — it is for researching the evidence behind claims you encounter. It is not for speculation, philosophical discussions or investigating original claims.
(emphasis mine)
And guess what! You aren't the first to ask this. See this well-received question on that site: Does a start-stop system for a combustion engine pay off?Does a start-stop system for a combustion engine pay off?.