When he challenged the Obama rule in court as Oklahoma's attorney general, Pruitt was one of the leading voices for the legal argument that EPA can't regulate greenhouse
gas emissions from power plants because it
already has a standard for mercury and air toxics emission from
generators — known as the 112 exclusion, referring to a section of the Clean Air Act.
Since you're going nowhere if the battery is drained, the
gas engine kicks in to recharge the battery, only if you're going over 70mph, the
generator is
already in use propelling the car.