Answer:
Step-by-step explanation:
Batteries: They have stuff inside that makes electricity. They can keep making electricity until they run out of stuff.
Solar Panels: They use sunlight to make electricity. They make electricity when the sun shines.
Generators: They use spinning to make electricity. As long as they keep spinning, they make electricity.
Fuel Cells: They use special ingredients to make electricity. If you give them more ingredients, they can keep making electricity.
Among these, batteries and fuel cells can be used again and again if you give them more ingredients or recharge them.