The S111 turbine uses a 54.8 metre blade – the longest ever produced by Suzlon. The turbine is the next generation of the S88 and S95/97 turbines. Certification of the S111 is expected this year.
It is the first prototype of the turbine to be commissioned with a second being manufactured in Texas, the US.
The prototype in India uses a 50Hz frequency. The second prototype, to be installed in Texas, will be required to produced electricity at 60Hz. Commissioning of this second machine is expected to take place at the end of March.
The S111 was included in Suzlon's sale of its German subsidiary Senvion to private equity firm Centrebridge Partners. Suzlon said the license would be given to Centrebridge to market the turbine solely in the US market.