What types of energy transformation takes place in the following:

What types of energy transformation takes place in the following:
Electric heater
Solar battery
Dynamo
Steam engine and
Hydroelectric power station?
Answer:
Electric heater: Electric energy into heat energy.
Solar battery: Solar energy into electric energy.
Dynamo: Mechanical energy into electric energy.
Steam engine: Heat energy to mechanical energy.
Hydroelectric power station: Mechanical energy into electric energy.