[jaachan]

> which is probably why Tesla switched to it recently

"Tesla's Battery Swap Stations Will Help It Requalify For ZEV Credits In California"

-- http://www.forbes.com/sites/greatspeculations/2014/12/30/tes...

Tesla would not make a profit without those credits.

-- http://seekingalpha.com/article/2724835-after-earning-tens-o...