Simply put, a hybrid contains both an electric motor(s) & gas motor and sometimes recoupes energy through regenerative braking. It combines power from the two energy sources to push the car forward, resulting in less gas burned and better MPG.
The electric motor recovers lost energy through regenerative braking. Regenerative braking uses the electric motor as a generator, converting the lost energy when decelerating back into usable energy.
It depends on the type of hybrid. The CR-V Hybrid, Accord Hybrid, and Insight are known as parallel hybrids and do not require an external plug-in. The Clarity Plug-In Hybrid uses a larger battery and requires an external electricity source. This allows the Clarity to use more electric power and has a 47-mile all electric range, perfect for work commutes.
With a hybrid you will take less trips to the pump, resulting in impressive cost savings. You can feel good about reducing your carboon footprint and enjoy any extra savings through potential tax credits.
 110 combined miles per gallon of gasoline-equivalent (MPGe) electric rating; 44 city/40 highway/42 combined MPG gasoline-only rating. 47-mile maximum EV mode driving-range rating. 340-mile combined gas-electric driving-range rating. Based on 2020 EPA ratings. Use for comparison purposes only. Your MPGe/MPG and driving range will vary depending on driving conditions, how you drive and maintain your vehicle, battery-pack age/condition and other factors.