December 20, 2011

Suzlon Group wins 20.5 MW contract in UK

Pune / Edinburgh: Suzlon Group’s wholly owned subsidiary, REpower, has signed a deal to supply
20.5 MW to Sixpenny Wood wind farm, which has been developed by Your Energy, a subsidiary of AES
Wind Generation. The wind farm, located 2.5 miles east of Howden, in the East Riding of Yorkshire,
consists of 10 MM92 REpower machines.

This is the first contract REpower has signed with AES Wind Generation, which is a subsidiary of The
AES Corporation, a global power company operating more than 1,800 MW of wind capacity around the

The turbines at Sixpenny Wood, with a rated output of 2.05 MW each, will generate enough electricity
to power the equivalent of nearly 12,000 homes annually.

Installation of the wind turbines will start in mid-2012 and the wind farm is expected to be complete
by the end of the year.

Rick Eggleston, Managing Director of REpower UK, commented: “It’s a pleasure to be working
with AES Wind Generation for the first time. We’ve already installed a number of wind turbines in that
area, so we know that the MM92 machine that we’re supplying for Sixpenny Wood is ideal for the local
wind conditions.”

David Wilson, Project Director at AES, added: “AES is pleased to begin working with REpower on
this project and hope this contract signals the start of a successful relationship.”

Since its launch in 2004 REpower UK has delivered 36 onshore wind farms in Scotland, England and
Wales and one offshore wind farm, Project Beatrice, in the North Sea. However, its largest offshore
contract is currently underway, with the company currently commissioning the 30 REpower 5M wind
turbines for Vattenfall’s Ormonde wind farm in the Irish Sea, with a total rated output of 150 MW.

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