Pennsylvania Department of Environmental Protection

A controversial mining technique used to extract oil and natural gas from deep rock deposits by injecting a high-pressure mixture of water, sand, and chemicals underground.

Vehicles that run on fuels other than traditional gasoline or diesel, including electric, plug-in hybrids, propane, ethanol, flex-fuel, and natural gas.

Devices that convert chemical energy from a fuel into electricity through an electrochemical reaction, producing minimal emissions.

Pennsylvania

An electric vehicle model that qualifies for rebates under Pennsylvania's Alternative Fuel Vehicle Rebate program.

An electric car model that has demonstrated success in terms of performance and efficiency.