|Traded as||BSE: 532667
|Revenue||₹204.0286 billion (US$3.2 billion) (2014)|
Suzlon Energy Limited, is a wind turbine supplier based in Pune, India. Formerly ranked as the world’s fifth largest supplier, it was since dropped out of the top ten as of 2014. The company has over 24,200 MW of wind energy capacity installed globally, with operations across over 30 countries and a workforce of over 10,000.
Suzlon is a vertically integrated wind power company. Suzlon makes and installs windmills. The company manufactures blades, generators, panels, and towers in-house and large or offshore turbines through its subsidiary Senvion. The company is integrated downstream and delivers turnkey projects through its project management and installation consultancy, and operations & maintenance services. Suzlon has offices, R&D and technology centres, manufacturing facilities and service support centres spread across the globe.
Suzlon has design and R&D teams and facilities in India, Germany, Denmark and The Netherlands. The international sales business of Suzlon is managed out of Aarhus, Denmark, while its global management office is in Pune, India.
Suzlon crossed 8,000 megawatts of cumulative installations in India in September 2010. Suzlon has cumulatively added over 7,600 megawatts of wind power capacity for over 1,700 customers in India across 40 sites in eight States. Suzlon accounts for nearly half of the country’s total wind installations Also in 2003 Suzlon set up an office in Beijing. In the key states of Tamil Nadu, Maharashtra and Gujarat, Suzlon’s installation base is over 1,000 megawatts each (Over 1GW). Leading corporate such as the Bajaj Group, the Birla Group, MSPL, DLF, the Tata Group, the Reliance Group, the ITC Group, L&T, as well as public sector companies like GSPL, HPCL, Indian Railways, Rajasthan Mines & Minerals, GACL, GSPC, GSFC, Indian Oil, ONGC and State Bank of India (SBI, Nuclear Power Corporation of India Limited (NPCIL), NALCO, GAIL, Vedanta Group (HZL), DLF Group, amongst others, have chosen Suzlon for their wind power projects. Suzlon is India's leading wind turbine manufacturer with nearly 50 percent YoY market share. The company has eight manufacturing facilities across the country. Suzlon has a workforce of over 10,000 employees globally.
- S111 - 2.1 MW
- S97 - 2.1 MW
- S95 - 2.1 MW
- S88 - 2.1 MW
- S82 - 1.5 MW
- S66 - 1.25 MW
- S52 - 600 kW
Suzlon's story began in 1995 when founder Tulsi Tanti was managing a 20-employee textile company. Due to the erratic availability of power locally, and its rising costs, the highest business expenditure after the raw materials was electricity. The cost of electricity also offset any profits made by the company. After providing electricity for his own company, Tanti realised that other companies in India could also greatly benefit from being sold wind power technology and advised on its use. With the help of some of his friends in Rajkot, he moved into wind energy production as a way to secure the textile company's energy needs, and founded Suzlon Energy. Suzlon adopted a business model wherein clients would be responsible for 25% of the up-front capital investment and Suzlon would arrange the remaining 75% on loan. Initially banks were hesitant to fund loans for this model but by 2008 40-50 Indian banks were financing wind power projects for Suzlon clients.
In 2001, Tanti sold off the textile business, so he could focus on the development of his wind energy business. Suzlon is still actively run by Tulsi Tanti, now in the role of Chairman, Suzlon Group.
In the year 2006, Suzlon reached a definitive agreement for acquisition of Belgium firm Hansen Transmissions, specializing in gearboxes for wind turbines, for $565 million. In 2007, the company purchased a controlling stake in Germany's Senvion (then operating as REpower Systems) which valued the firm at US$1.6 billion.
In June 2007, Suzlon had signed a contract with Edison Mission Energy (EME) of US for delivery of 150 wind turbines of 2.1 megawatts in 2008 and a similar volume to be delivered in 2009. EME had an option not to purchase the 150 turbines due to be delivered in 2009, which it has chosen to exercise.
In November 2009, the company decided to sell 35% stake of Hansen for $370 million as part of its debt restructuring program, through placing new shares. It appointed Bank of America Merrill Lynch and Morgan Stanley as the managers and book runners for the same.
In May 2011, Suzlon announced returning to profitability after the financial crisis of 2009 
In October 2011, Suzlon sold its remaining 26.06% stake in Hansen Transmissions International NV to ZF Friedrichshafen AG for ₹8.9 billion (US$140 million).  In the same month, it also achieved full control of its German subsidiary REpower Systems (now Senvion) by acquiring the remaining 5% stake held by minority shareholders that resisted the takeover. The takeover was completed through the squeeze-out procedure by paying EUR 63 Million. 
It has to redeem 500 million worth of FCCB's (foreign currency convertible bonds) in 2012 in tranches of 300 million in June and 200 million in October respectively. In line with the previously announced strategy to dispose of non-critical group assets to reduce long-term debt, Suzlon Chairman said that Suzlon Energy, will sell stake in its China manufacturing unit to China Power New Energy Development Co. Ltd. for 3.4 billion rupees ($60 million).
On 30 November 2013 the Suzlon Group subsidiary REpower Systems (now Senvion SE) won an Engineering, Procurement and Construction (EPC) contract from Mitsui & Co (Australia) Ltd to deliver 52 wind turbines with a total rated output of 106.6 MW for the Bald Hills wind farm in Victoria, Australia.
As of August 2014, Suzlon's debt was over ₹ 8000 crores. On 22 January 2015, Suzlon announced the sale of Senvion SE, its wholly owned subsidiary, to Centerbridge Partners, a private equity firm in a deal valued at ₹ 7200 crores. The deal is expected to ease Suzlon's debt burden. In a further equity infusion, Dilip Shanghvi Family and Associates (DSA), run by Dilip Shanghvi, the founder and managing directory of Sun Pharmaceutical, agreed to purchase a 23 percent stake in Suzlon for a sum of ₹1800 crores. The deal will see Tanti's holding shrink to 24 percent, but management control will still remain with the Tanti family.
Globally, Suzlon has installed over 25000 MW of wind power capacity in 31 countries. Within India, wind power installations built by Suzlon produce over 8000 MW of power. Its notable installations in India include
- The 1064 MW Jaisalmer Wind Park in Rajasthan.
- The 1100 MW wind park in the Kutch district, Gujarat, with plans to expand it to 2000 MW in the next four to six years. As of February 2015, this is the largest wind park in Asia at a single location.
- A 584 MW wind park in the Eastern Ghats, (Tamil Nadu).
- The 210 MW Vankusawade Wind Park near the Koyna reservoir in the Satara district of Maharashtra.
- List of renewable energy companies by stock exchange
- List of wind turbine manufacturers
- Wind power in India
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