January 1, 2009

Ecofin acquires 10% stake in Suzlonsubsidiary Hansen Transmissions

London / India: AE-Rotor Holding B.V. (“AERH”), a wholly owned indirect subsidiary
of Suzlon Energy Limited (“Suzlon”), the world’s fifth leading and India’s largest wind
turbine manufacturer* announced today that it has agreed on 31 December 2008 to
sell 67,010,421 shares (10% equity) in Hansen Transmissions International NV
("Hansen") (LSE ticker 'HSN'), an established global gearbox designer, manufacturer
and supplier with a leading position in the wind turbine gearbox market, to funds
managed by Ecofin Limited, a London based specialised investment firm (together,
"Ecofin"). Following completion of the acquisition, Ecofin will have a voting and
economic interest in Hansen of approximately 11.62%. Ecofin has undertaken to
Suzlon, subject to customary exceptions, not to dispose of the shares acquired from
Suzlon until after 30 June 2009. The lock-up is renounceable in certain circumstances,
as outlined below. Following this disposal, the Suzlon Group will retain a voting and
economic interest in Hansen of approximately 61.28%.

The terms of the relationship agreement entered into between Hansen and Suzlon give
Suzlon the right to appoint two non-executive directors to the Board of Hansen for so
long as its shareholding in Hansen is a minimum of 26%. Under the terms of the
agreement entered into with Ecofin, Suzlon has granted Ecofin the right to nominate
one such director for so long as Ecofin’s shareholding in Hansen is a minimum of 8%.
Ecofin has indicated that it does not currently intend to exercise this right. This right is
renounceable at Ecofin’s option within 3 months following completion, in consideration
for the release of the lock-up obligation in respect of the shares acquired by Ecofin.
Suzlon remains a committed long term strategic investor in Hansen.

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