Final answer:
The combined heat and power station is generally more efficient overall compared to the normal power station due to its ability to capture and utilize waste heat. This results in higher energy utilization and less waste. Combined heat and power stations can achieve efficiencies of up to 90%, while normal power stations commonly have efficiencies around 30-45%.
Step-by-step explanation:
The combined heat and power station is generally more efficient overall compared to the normal power station. The efficiency of a power station is a measure of how much of the input energy is converted into useful output energy. Combined heat and power stations, also known as cogeneration plants, are designed to generate electricity and capture waste heat that is then used for heating or other processes, resulting in higher overall efficiency.
For example, in a normal power station, the heat produced during electricity generation is often released into the environment as waste heat. However, in a combined heat and power station, this waste heat is captured and used for heating nearby buildings or industrial processes, maximizing the use of energy. This makes combined heat and power stations more efficient in terms of energy utilization and reducing waste.
Furthermore, combined heat and power stations can achieve efficiencies of up to 90%, whereas normal power stations commonly have efficiencies around 30-45%. Therefore, in terms of overall energy production and utilization, the combined heat and power station is the more efficient option.