Siemens Energy has been awarded three orders by
different customers to supply a total of four steam
turbine generator units for solar thermal power plants
in Rajasthan. The steam turbines of type SST-700 are
intended for the Godawari, Abhijeet and Diwakar & KVK
parabolic trough power plants. With a total rating of 300
mw, these plants will make a contribution to meeting
India's growing electricity demand from solar power when
they go on line in 2013.
All four power plant projects in the state of Rajasthan are
being constructed as part of the Jawaharlal Nehru National
Solar Mission (JNNSM), the Indian government's ongoing
program for promoting solar power.
The program envisages installing up to 20 GW of solar
power capacity in India by the year 2022. The parabolic
trough power plants Godawari owned by Godawari
Green Energy Ltd. and Abhijeet owned by Corporate
Ispat Alloys Ltd. are each rated 50 mw. Siemens has
been awarded contracts for an SST-700 steam
turbine generator unit and auxiliary systems for
each of these units. The third customer, Lanco
Solar Energy, has ordered a steam turbine and generator
rated at 100 mw, complete with auxiliary systems for
each of the two units of the Diwakar & KVK parabolic
trough power plant.
Siemens offers type SST-700 steam turbines for solar
thermal power plants with a rated output of up to 175
mw. This type of turbine is particularly suitable for use in
solar thermal power plants, because it can be run up
and down quickly to respond very rapidly to the
fluctuating service conditions typical of these plants. In
addition, superheating the steam improves the efficiency
of the turbines and thus of the power plant as a whole.
Steam turbines for solar thermal power plants are part of
Siemens' Environmental Portfolio. In fiscal 2011,
revenue from the Portfolio totaled about €30 billion,
making Siemens one of the world's largest suppliers of
ecofriendly technologies.