A generator converts kinetic energy into electrical energy.
Electric energy is stored in batteries.
A generator can be used to store energy in batteries.
Energy from a generator
Options:
[1] is weaker than nuclear energy
[2] reducing acid rain
[3] heat is produced
[4] cannot be used in circuits
[5] can be stored in batteries
[6] mechanical waves
[7] has a high voltage
[8] igniting fuel and oxidiser