Feasibility study of solar- wind hybrid for rural electrification
Student name: Mr Jalaj Garg
Guide: Mr Sheeraz Kirmani
Year of completion: 2012
Host Organisation: Suzlon Power Infrastructure Ltd.
Supervisor (Host Organisation): Mr Naresh Panchal
Abstract: A feasibility study of solar wind hybrid systems for rural electrification is done in this
project. It consists of six 40 kW Wind Turbine Generators (WTG) summing up to 240 kW of
installed wind power and 377 kW of installed solar PV modules and 1680 kVA of battery
backup for storing dc power generated from solar cells. According to the load data obtained
for three villages i.e. 850 households, the plant capacity has been decided to be 617 kW by
optimizing the hours of outage of the power supply. Considering 60/40 ratio of the solar to
wind installed capacity in order to minimize power wastage during high wind seasons, the
installed capacity of wind as well as solar power was calculated.
The project being a Decentralized Distributed Generation (DDG) system, how to
supply starting current required by the induction generator of the WTG that is generally
supplied by the grid is a big problem. This starting current could be supplied to the WTG
from the batteries. Hence batteries provide power to the load when wind generation is lower
than the load and also to supply power to start the WTG generation.
All this is done under the DDG scheme of Rajiv Gandhi Grameen Vidyutikaran
Yojna (RGGVY) and grid connected Jawaharlal Nehru National Solar Mission (JNNSM).
Both these policies have been compared in the context of rural electrification and
justification is given under which project should be implemented to supply power at
minimum tariff.
