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India has set an ambitious target of reaching 175 GW of installed capacity from renewable energy sources including 100 GW from solar and 60 GW from wind by the year 2022. Various policy initiatives have been taken to achieve this
target. The country has already crossed a mark 26.8 GW of wind and 7.6 GW of solar power installed capacity during May 2016.

Solar and wind power being infirm in nature impose certain challenges on grid security and stability. Studies revealed that solar and winds are almost complementary to each other and hybdridation of two technologies would help in
minimizing the variability apart from optimally utilizing the infrastructure including land and transmission system.

Suitable policy interventions are required not only for new wind-solar hybrid plants but also for encouraging hybridization of existing wind and solar plant.

 

 

                                                            OBJECTIVE AND GOALS

  • The main objective of the Policy is to provide a framework for promotion of large grid connected wind-solar PV system for optimal and efficient utilization of  transmission infrastructure and land, reducing the variability in renewable power generation and thus achieving better grid stability.
  • Policy aims to encourage new technologies, methods and way-outs involving combined operation of wind and solar PV plants.
  • The Goal of the Policy is to reach wind-solar hybrid capacity of 10 GW by 2022.

 

                                                         PERIOD OF ENFORCEMENT

This policy will remain in force unless withdrawn or superseded by the Government. The Government will undertake a review of this Policy as and when required.

 

 

                                                          WIND-SOLAR HYBRID SYSTEMS

Under the category of wind-solar hybrid power plants, Wind and Solar PV systems will be configured to operate at the same point of grid connection. There can be different approaches towards integrating wind and solar depending upon the size of each of the source integrated and the technology type. On the technology front, in case of fixed speed wind turbines connected to grid using an induction generator, the integration can be on the HT side at the AC output bus. However, in case of variable speed wind turbines deploying inverters for connecting with the grid, the
integration can even be on the LT side before the inverter i.e. at the intermediate D.C bus. The second important aspect would be related to the sizing – which would depend on the resource characteristics. In order to achieve the benefits of hybrid plant in terms of optimal and efficient utilization of transmission infrastructure and better grid stability by reducing the variability in renewable power generation, in the locations where the wind power density is quite good, the size of the solar PVs capacity to be added as the solar-hybrid component could be relatively smaller. On the other hand, in case of the sites where the wind power  density is relatively lower or moderate, the component of the solar PV capacity could be relatively on a higher side so that the.

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