1.18. Energy Displacement Power Plants
Solar power plants and wind power plants generate electrical energy only during favourable natural conditions of sun-light and wind. During favourable conditions, they are allowed to generate full rated power and the other intermediate power plants are relieved of equal power generation. The energy consumption of non-renewable resources is displaced by corresponding amount of MWhr.
Hybrid of Renewable and Energy Storage Plants
Energy displacement plants may operate in liaison with a conventional diesel electric plant and battery storage to form Hybrid solution. Hybrid power plants introduced commercially are :
- Solar-Battery-Diesel
- Wind- Battery-Diesel
During favourable conditions of sun/wind, the storage batteries are charged. During
Unfavourable natural conditions the battery-bank supplies energy oia a suitable power conditioning unit (DC to AC).
When stored energy in battery-bank reduces, diesel-generator sets are started to supply the power.