Composition of Power Plant

This picture below is load profile electric demand in Japan. The peak load happen at 9 o'clock in the morning to 3 o'clock in the afternoon because most consumers are for industrial plant. It is diiferent with Indonesia load profile that peak load happend at 7 o'clock in the evening because most consumers are for household.


















The source of electric generation can be classification from source power supply, fuel, type plant etc.


Geothermal, wind power and river hydopower can be cathogorize on first base load plant. It means the their load always priority maximun bacause type of renewable or green energy.

Nuclear is second base load because of cheap and high energy capacity. Coal is third base load beacuse of the high capacity bacause is more expensive than nuclear.

For the middle load is suitable for gas power plant bacause of the high capacity and can increase and decerase more fast than coal power station.

For peak load is suitable for oil power plant and hydropower beacause the load can be increase or decrease very fast but the oil is expensive and hydopower sevice can not be long. During load profile is low at 0 to 9 o'clock, hydro power plant is shutdown but the water at bottom is pumping to upper. It is for hydropower reserve energy for next peak load.