Actually, the few guys that I've seen trade these at hedge funds were former PP desk heads. Access to an actual power plant changes the strategy a lot, apparently, but even without it there is a bunch of arb for people with deep pockets (and solid brass testicles).Basically the industry vets drain money from hedgefund noobs who don't understand the ins and outs but are attracted by the volatility. "Look, a bright shiny object!"