California eyes unusual power source: its gridlocked roads

All those cars on California's famously gridlocked highways could be doing more than just using energy - they could be producing it. … Continue Reading http://www.pennenergy.com/articles/pennenergy/2016/09/renewable-energy-california-eyes-unusual-power-source-its-gridlocked-roads.html?cmpid=EnlDailyPowerSeptember272016&eid=288118515&bid=1539186