Plug-in hybrids also have increased battery capacity, which makes it possible to drive for limited distances without burning any gasoline; in this case, energy efficiency is dictated by whatever process (such as coal-burning, hydroelectric, or renewable source) created the power.
Plug-in hibrida juga telah meningkatkan kapasitas baterai, yang memungkinkan drive untuk terbatas jarak tanpa pembakaran bensin; dalam hal ini, efisiensi energi ditentukan oleh proses apa pun (seperti batu bara, tenaga air, atau sumber terbarukan) menciptakan daya.